JP2002278593A - Sound recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound recording/reproducing device of high sound data retrievability. SOLUTION: The sound recording/reproducing device is provided with a CPU 116 functioning, as a search means for fast-forwarding or fast-reversing of sound data, as a reproducing means for reproducing sound data, and as a control means for controlling the reproduction of sound data, when the fast- forwarding or the fast-reversing is carried out according to the encoding system of the sound data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio recording / reproducing apparatus capable of performing fast forward or fast reverse.

[0002]

2. Description of the Related Art In recent years, encoded audio data is recorded in an internal semiconductor memory, and at the time of reproduction, the audio data is read from the semiconductor memory, converted into an audio signal, and output from a speaker or a headphone device. A so-called semiconductor audio player has been commercialized. Some of these semiconductor audio players have a so-called voice memo function, which can digitally convert an audio signal obtained from the microphone using an internal microphone and record it in an internal semiconductor memory.

[0003]

In such a semiconductor audio player, when a desired reproduction position is to be reproduced, a fast-forward or fast-reverse operation switch or the like is operated while looking at a counter or the like to perform fast-forward or fast-reverse operation. It is necessary to repeat the operation of once releasing fast-forward or fast-rewind at the position considered to be the target position, playing back from there, and confirming whether or not the target position is reached.

[0004] As a method for improving the above-mentioned problem,
It is conceivable to perform fast-forward or fast-reverse while playing back audio. However, this method makes it easy to find the target position, but on the other hand, fast forward or fast rewind and playback must be performed simultaneously, so that it is difficult to hear the playback sound or the load on the CPU, etc.
If the search speed cannot be increased so much and the approximate position can be determined without reproducing the contents, the searchability is adversely affected.

[0005] Further, in the case of such a semiconductor audio player, a plurality of encoding systems may be used for audio data, and in order to perform fast-forward or fast-reverse while reproducing, each encoding system is used. An algorithm or the like must be prepared for each time, which causes problems such as an increase in necessary internal memory.

The present invention has been made in view of the above circumstances, and has as its object to provide an audio recording / reproducing apparatus having good audio data searchability.

[0007]

According to a first aspect of the present invention, there is provided an audio recording and reproducing apparatus, comprising: a search unit for fast-forwarding or rewinding audio data; and an audio data reproducing apparatus. A reproduction unit that controls reproduction of the audio data at the time of fast-forward or fast-rewind according to the encoding method of the audio data;

According to a second aspect of the present invention, in the audio recording and reproducing apparatus according to the first aspect, the control means determines whether or not to reproduce the audio data at the time of the fast forward or fast reverse. Control is performed according to the encoding method.

According to a third aspect of the present invention, in the audio recording / reproducing apparatus according to the first aspect, the control means controls the method of reproducing the audio data at the time of fast-forward or fast-return by changing the encoding method of the audio data. Change according to.

A fourth aspect of the present invention is directed to an audio recording / reproducing apparatus having a player mode which is an operation mode dedicated to audio data reproduction and a recorder mode which is an operation mode capable of recording and reproducing audio data. Searching means for fast-forwarding or fast-returning, playback means for playing back audio data, and control means for controlling playback at the time of fast-forwarding or fast-returning according to the operation mode.

According to a fifth aspect of the present invention, in the audio recording / reproducing apparatus according to the fourth aspect, the control means determines whether or not to reproduce the audio data at the time of the fast forward or fast reverse in the operation mode. Control according to.

According to a sixth aspect of the present invention, in the audio recording / reproducing apparatus according to the fifth aspect, the control means controls to reproduce audio data at the time of fast forward or fast reverse in the recorder mode.

According to a seventh aspect of the present invention, in the audio recording / reproducing apparatus according to the fourth aspect, the control means changes a method of reproducing the audio data at the time of fast-forward or fast-return according to the operation mode. I do.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an audio recording / reproducing apparatus according to an embodiment of the present invention.

First, each block of the audio recording / reproducing apparatus will be described along the flow of signals when audio is recorded. The audio recording / reproducing apparatus according to the present embodiment includes a microphone 101 for converting audio into an electric signal, and a microphone jack (line input terminal) 102 for inputting an audio signal from an external device such as an external microphone. The input switch 103 selects which of these is to be used. The input switch 103 is configured to select the microphone jack 102 when the terminal connected to the external device is connected to the microphone jack 102, and to select the microphone 101 in other cases.
In this embodiment, both the microphone 101 and the microphone jack 102 have a monaural input with one audio channel.

The audio signal selected by the input switch 103 is input to a preamplifier 104 and amplified. The control of the amplification factor of the preamplifier 104 or the power supply is controlled by a CPU 116 as a control circuit for controlling the entire operation of the audio recording / reproducing apparatus.

The audio signal amplified by the preamplifier 104 is input to an input amplifier 105a of a stereo codec 105 for converting a signal between an audio signal and a digital signal. The audio signal is amplified again here, and then the audio signal which is an analog signal is converted into a digital signal.
/ D converter R105b and A / D converter L1
05c respectively. Then, the audio signal is converted into a digital audio signal here, and the digital filter 10
5d.

The stereo codec 105 itself is:
Since the conversion from the analog signal to the digital signal and the conversion from the digital signal to the analog signal for the stereo signal are supported, the A / D converter is also provided with two of the right and left channels 105b and 105c. Is the microphone 101 or microphone jack 1
02 is a monaural input, so that one input signal is supplied to each of the A / D converters 105b and 1b as described above.
05c.

The digital filter 105d performs a process of removing unnecessary quantization noise called aliasing noise generated when the above-described audio signal is converted into the digital audio signal from the digital audio signal. Then, the digital audio signal from which the quantization noise has been removed is transferred to a digital signal processing unit (hereinafter abbreviated as DSP) 114.

Under the control of the CPU 116, the DSP 114 encodes (compresses and converts) the input digital audio signal in frame units according to a predetermined format, and generates encoded data. In this audio recording and playback device, Digi
An encoding method called tal Speech Standard (hereinafter abbreviated as DSS) is used.

The encoded data thus generated is transferred to a memory card 117 as encoded data recording means. The memory card 117 is formed of a semiconductor memory such as a flash memory in a card shape detachable from the audio recording / reproducing apparatus main body. Specifically, Smar
t Media (registered trademark) and the like, and this audio recording / reproducing apparatus uses this.

The encoded data is sequentially written to a predetermined address in the memory card 117 under the control of the CPU 116 via the bidirectional bus transceiver IC 115. The encoded data written in the memory card 117 is treated as a file as one unit (DSS
The encoded data file encoded by the method
It is called a file. ). Also, since the sound recording in the present sound recording / reproducing apparatus is performed in monaural, only the encoded data of the digital sound signal output from the A / D converter R105b is stored in the memory card 1.
17 is recorded.

Next, the function and the like of each block will be described along the signal flow when the encoded data recorded on the memory card 117 is reproduced.

First, from the memory card 117, the DSP 1
14, the encoded data is sequentially transferred. The encoded data transferred to the DSP 117 is under the control of the CPU 116,
The digital audio signal is decoded (expanded and converted) in a predetermined frame unit. Note that encoded data other than the DSS file can be recorded on the memory card 117 as described in detail later. Therefore, in the DSP 114, the encoded data sent from the memory card 117 is
It determines which coding method is used, and decodes the coded data according to the coding method. The audio recording / reproducing apparatus of the present embodiment is a Windows Media (registered trademark) system of Microsoft Corporation (registered trademark) (hereinafter referred to as WMA).
And the encoded data file is referred to as a WMA file. ), Motion Picture Experts Group-1 Aud
io Layer 3 method (hereinafter referred to as MP3 method, and its encoded data file is referred to as MP3 file) and DSS
It is assumed that three decoding methods can be performed. The decoded digital audio signal is supplied to a stereo codec 10.
5 is transferred.

From the transferred digital audio signal, unnecessary quantization noise is removed in a digital filter 105 d in the stereo codec 105. After that, the digital audio signal is converted into an analog audio signal by the D / A converter R105e and the D / A converter L105f for each of the left and right channels, and the signal is amplified by the output amplifier R105g and the output amplifier L105h. Are output from the stereo codec 105.
If the original encoded data is monaural data, the same signal is input to both the left and right channels, processed, and then output.

The output destinations of the audio signals of the left and right channels output from the stereo codec 105 are switched by output changeover switches 106 and 107 interlocked with each other. To the output destination of the audio signal, a headphone terminal R111 and a headphone terminal L for connecting external headphones or the like and reproducing the audio signal using an external reproducing device are provided.
112 and a speaker 113 provided in the main body of the audio recording / reproducing apparatus.

When the output changeover switches 106 and 107 are switched to the side of 106a and 107a, respectively, the headphone terminal R111 and the headphone terminal L11
2 is selected, and the audio signal is amplified by the headphone amplifier R108 and the headphone amplifier L109 at an amplification factor according to the output from the headphone terminal, and is output for each of the left and right channels.

When the output changeover switches 106 and 107 are switched to the positions 106b and 107b, respectively, the speaker 113 is selected as the output destination. Note that the speaker 1
Since only one unit 13 is built in the main body, the audio signal is amplified by the speaker amplifier 110 at an appropriate amplification factor by the speaker amplifier 110 after the signals of the left and right channels are combined, and output from the speaker 113.

The control circuit CPU 116 is connected to several circuits in addition to those described above. The display unit 119 includes a two-color LED and a liquid crystal display (LCD display device) having a backlight, and displays an operation state and the like of the audio recording / reproducing apparatus. Display drive circuit 1
The display 18 drives the display section 119 under the control of the CPU 116.

The operation switch group 120, which will be described later in detail, is provided on the exterior of the audio recording / reproducing apparatus, and is an operation switch for controlling various functions. Power supply circuit 121
Is a circuit for supplying power for driving the audio recording / reproducing apparatus, and includes circuits related to power control such as a battery, a battery check circuit, a power-on reset circuit, a booster circuit, a step-down circuit, and an external power supply connection circuit. Including.

The built-in memory 122 is composed of an EEPROM which is a rewritable nonvolatile memory built in the main body, and has a user ID, a selection setting of a recording mode (standard mode / long time mode), and a BEEP sound (ON / OFF). Various settings, parameters, and the like that are desired to be recorded even when power is not supplied to the CPU 116, such as selection settings, data reproduction positions, and the like.

The audio recording / reproducing apparatus can be connected to an external device such as a personal computer. The present audio recording / reproducing apparatus is connected to an external device and performs bidirectional communication, for example, to transfer an encoded data file recorded on a hard disk or the like of a personal computer to a memory card 117, or vice versa. The encoded data file recorded in the microphone 117 is transferred to a recording medium of the personal computer, or the audio signal input from the microphone 101 is converted into a digital audio signal by the stereo codec 105, and the DSP 1
Various other processes can be performed, such as recording the encoded data encoded in step 14 directly on the recording medium of the personal computer.

In order to communicate with the external device such as the personal computer described above, the audio recording / reproducing apparatus of the present embodiment employs a universal
It is configured to be connected via an interface called a Serial Bus (hereinafter referred to as USB). An external connection terminal (USB connection terminal) 124 is a connection terminal for connecting to a USB cable, and a communication driver (USB).
Driver 123 and is connected to the CPU 116 via an internal bus.

The bidirectional bus transceiver IC 115 is provided on the bus line to cut off the connection between the connection terminal (not shown) of the memory card 117 on the audio recording / reproducing device side and the CPU 116 and the USB connection terminal 124. Is what it is. This is because USB is connected to the external connection terminal 124.
When the cable is connected and the CPU 116 is communicating with an external device and the insertion operation of the memory card 117 is performed, an electrical short circuit occurs between the bus lines, and the memory card 117 and the CPU 116 This is for preventing damage or the like.

Therefore, the memory card 117 is not loaded, and the CPU 116 connects the external device to the USB connection terminal 12.
When the communication is performed via the CPU 4, the bidirectional bus transceiver IC 115 is configured to cut off the connection between the connection terminal of the memory card 117 on the audio recording / reproducing device side and the CPU 116.

Here, the operation mode of the audio recording / reproducing apparatus will be described. The audio recording / reproducing apparatus has two operation modes. One is a first mode (hereinafter, referred to as a recorder mode) in which audio input from a microphone or a microphone jack can be recorded and the recorded audio can be reproduced. This is a second mode (hereinafter, referred to as a player mode) specialized in reproducing an encoded data file recorded on a recording medium, in which a recording operation cannot be performed. In the audio recording / reproducing apparatus of the present embodiment, in the recorder mode, it is assumed that the recording mode is mainly used for message memos, dictations, conference recordings, etc. It shall be. In player mode,
It is assumed that music is mainly listened to, and WMA and MP3 encoding that can reproduce with high sound quality are used.

Next, an outline of the present audio recording / reproducing apparatus will be described from the appearance with reference to FIGS. FIG. 2 is a diagram of the external appearance of the audio recording / reproducing apparatus according to the present embodiment viewed obliquely from the front, and FIG. 3 is a diagram viewed obliquely from the rear.

A main display unit 202 is provided on the front of the main body 201.
Is arranged. The main display unit 202 is configured by an LCD display device, and can perform various displays such as a remaining battery level, a recording mode, a file number, a user ID, various time displays, and an operation state display.

When the operation button is operated, the backlight is turned on for several seconds.

The recording button 203 is a button for instructing the start of recording of an audio signal. The recording button 203 can be operated only in the recorder mode. When operated in the player mode, an error alarm sounds and the recording start instruction is ignored.

The stop button 204 is a button for instructing stop of the operation when the apparatus is in operation such as recording and reproduction.

The reproduction button 205 is a button for instructing the reproduction start of the encoded data file recorded on the memory card 117.

A fast rewind button 206 is used to quickly rewind an encoded data file being reproduced, decrement a file number when selecting an encoded data file to be reproduced, or decrement a parameter when setting a menu. It is a button to do.

A fast-forward button 207 is used to perform fast-forward or fast-forward playback of an encoded data file being played, to increment a file number when selecting an encoded data file to be played, and to set a menu when setting a menu. A button for incrementing a parameter. The fast-return button 206 and the fast-forward button 207 are integrally formed, and are a so-called seesaw switch.

The erase button 208 is a button for erasing the encoded data file selected by using the fast rewind button 206 or the fast forward button 207 from the memory card 117. Specifically, if the user selects the encoded data file to be erased and presses the erase button once, the encoded data file to be erased is displayed blinking on the main display unit 202. Delete button 208 again
Is pressed. Thus, the desired encoded data file can be deleted from the memory card 117.

The index button 209 has a different function between the recorder mode and the player mode.
In the case of the recorder mode, an index mark is added to the encoded data file being recorded. The number of recordable index marks is limited to 16 per file. In the case of the player mode, several kinds of frequency characteristics (normal, pop, jazz, classical, and user-defined in the present sound recording / reproducing apparatus) suitable for the music to be reproduced are prepared in advance, and a desired one is selected from among them. These buttons are used to select the frequency characteristic of (1) and change the reproduced sound.

The menu button 210 is used to set a recording mode,
These buttons are used to make various settings related to the audio recording / reproducing apparatus, such as clock settings and user ID settings. In the player mode, switching between a surround effect and a special effect such as bass amplification can be performed.

The folder button 211 has a different function between the recorder mode and the player mode. In the case of the recorder mode, a plurality of folders are prepared in the memory card 117 for storing the encoded data files, and functions as a button for switching between the folders. In the case of the player mode, it functions as a button for setting the reproduction mode.

In the case of the present audio recording / reproducing apparatus, all the encoded files handled in the player mode are sequentially reproduced once only (normal reproduction mode), only one file is repeatedly reproduced (one-track repeat reproduction mode), and the player mode is reproduced. All the encoded files handled in the above are played repeatedly in order (all-track repeat playback mode), the encoded files handled in the player mode are played repeatedly at random (random repeat playback mode), and the encoded files handled in the player mode are randomized once each Playback in random order (random playback mode),
You can choose from:

The headphone jack 212 is for outputting a sound signal to a headphone, an external speaker or an external sound processing device, and has a headphone terminal R11 therein.
1. A headphone terminal L112 is provided. Also,
A reproduced sound can also be output from the speaker 213.
The playback output switching mechanism outputs a playback signal from the headphone jack 212 if a plug is inserted into the headphone jack 212, and outputs the playback signal from the headphone jack 212.
If the plug is not inserted, the speaker 213 outputs a reproduced sound. The headphone jack 212 and the speaker 213 can generate a warning signal or a warning sound.

The microphone jack 214 is a jack for inputting an audio signal from an external microphone or an external audio processing device. In addition, a microphone 215 is built in the main body separately. The switching mechanism of these audio signal inputs is similar to that at the time of reproduction output.
4 is plugged into the microphone jack 21
4 is configured to input an audio signal from the microphone 215 when the plug is not inserted.

The indicator 216 mainly indicates the state of the reproducing or recording operation, and uses a two-color LED. It is configured to illuminate green during playback and illuminate red during recording. Also, the indicator 216
Is also used for warning display. When a warning is issued to the user for some reason, a red blinking display is performed.

The volume knob 217 is for adjusting the output level from the headphone jack 212 and the speaker 213.

The recording medium insertion port 218 is connected to the memory card 1
17 is an opening for inserting the same.

The operation mode switch 219 is a switch for switching the operation mode of the audio recording / reproducing apparatus between the above-described recorder mode and player mode.

The microphone sensitivity switch 220 is connected to the microphone 21
A switch for setting the input level of No. 5 can switch between high sensitivity (conference mode) and low sensitivity (dictation mode).

The hold switch 221 sets a so-called hold function that invalidates the operation input of the push button switch and shifts the operation mode of the audio recording / reproducing apparatus to the power saving mode when the operation is stopped. This is a switch for releasing.

The power supply jack 222 is for connecting to an external power supply and receiving power supply from outside. The eject knob 223 is for taking out the memory card 117 inserted from the recording medium insertion port 218. The battery cover 224 is a cover that covers the battery chamber.

The external connection terminal 225 is a terminal for communicating with an external device such as a personal computer. In this audio recording / reproducing apparatus, a USB terminal is used.

The main switch 226 is a switch for turning on / off the operation of the audio recording / reproducing apparatus. Also,
The main switch 226 is mechanically engaged with the eject knob 223 in the ON state, and
Is configured not to be taken out.

It is assumed that the above-mentioned various operation buttons are push button switches, and that the switch state is turned on by a pressing operation.

Next, how data is recorded on the memory card 117 used in the present audio recording / reproducing apparatus will be described with reference to FIG.

The root of the memory card 117 includes an encoded data file 41, a music order data file 42, a DSS
File folders 43, 44 and 45 and a codec data folder 54 are recorded.

The coded data file 41 has an extension of m
p3 or wma, which indicates that these are music data files encoded by the MP3 system or the WMA system. These are encoded data files that can be reproduced in the player mode described above.

The music order data file 42 is a file having, as table data, the reproduction order of an encoded data file that can be reproduced in the player mode.
To change the playback order of the encoded data file in the player mode, the music
Rewrite by the control of 6.

DSS file folders 43, 44, 45
Is a folder for storing a DSS file. In the recorder mode, three folders A, B, and C are provided to organize DSS files.
The SS file folders 43, 44, 45 correspond to these folders A, B, C. DSS file folder 4
DSS files 46, 4 are stored in 3, 44 and 45, respectively.
7 and 48 are stored, and these can be reproduced in the recorder mode.

At the time of recording, a DSS file is created in one of these DSS file folders 43, 44, and 45. The order of reproduction of the DSS files 46, 47, and 48 is recorded in the reproduction order data files 51, 52, and 53 as table data for each folder.

In consideration of the display capability of the main display unit 202 or the usability of the operator, the number of recordable files per folder is set to 199 in the recorder mode in the audio recording / reproducing apparatus of this embodiment. Then 59
There are seven cases.

In the DSS file folder 43, a folder name data file 49 and a recovery data file 50 are recorded in addition to the above-mentioned files. In this audio recording / reproducing apparatus, the display names of the folders A, B, and C in the main display unit 202 can be changed to arbitrary display names. In the folder name data file 49, data for associating the display name with the DSS folder files 43, 44, and 45 is recorded. Also,
The recovery data file 50 is stored in the D for some reason.
This is a file in which data for performing recovery when data in the SS file folders 43, 44, and 45 is destroyed is recorded.

The codec folder 54 is a folder for storing codec files 55 and 56 of encoded data files to be reproduced in the player mode. The first three characters of the file names of the codec files 55 and 56 use the extension of the corresponding encoded data file. The extension of these codec files is img
Is used. The codec file for the DSS file used in the recorder mode is
And stored in a flash memory (not shown).

Next, the operation of the audio recording / reproducing apparatus will be described with reference to a flowchart.

FIG. 5 is a diagram showing a main flowchart of the present audio recording / reproducing apparatus.

When power is supplied to the circuit by loading a battery or the like, the operation is started, and first, initial settings such as clearing of the memory, setting of various parameters, and hard reset are performed (step S501). Subsequently, the current time is set (step S502). To set the current time, use the fast reverse button 20
6 and the fast-forward button 207 are used to raise and lower the numerical value, and the reproduction button 205 is used to determine the value. Here, stop button 2
If the user presses 04, the current time setting operation can be canceled.

Next, the flow advances to step S503 to detect whether the operation mode is set to the recorder mode or the player mode. Specifically, the CPU 116 detects which mode the operation mode switch 219 is set to. Thereafter, it is determined whether the memory card 117 is loaded in the main body (steps S504 and S507). If the recorder mode is set and the memory card 117 is loaded in the main body, the process proceeds to step S505 (R / S process). If the memory card 117 is not loaded in the main body, the process proceeds to step S506 (R / NC process). . If the player mode is set and the memory card 117 is loaded, the process proceeds to step S508 (P / S processing). If the memory card 117 is not loaded, the process proceeds to step S50.
9 (P / NC processing). As described above, processing corresponding to the operation mode and whether or not the memory card 117 is loaded is performed.

FIG. 6 is a flowchart showing a process when the operation mode is set to the recorder mode and the memory card 117 is loaded.

First, it is determined whether or not the recording button 203 is turned on (step S601).
If the REC processing is performed (Step S)
602).

If the recording button 203 has not been turned on, the flow advances to step S603 to determine whether the reproduction button 205 has been turned on. When the play button 205 is turned on, an R / PLAY process (step S6)
04).

If the reproduction button 205 has not been turned on, the flow advances to step S605 to determine whether or not the fast forward button 207 has been turned on. When the fast forward button 207 is turned on, a skip operation in the forward direction (F.SKIP), that is, an operation of incrementing the data file number by one and moving the file to be reproduced or edited is performed (step S1). S606).

If the fast forward button 207 has not been turned on, the flow advances to step S607 to determine whether the fast return button 206 has been turned on. When the fast reverse button 206 is turned on, a skip operation in the reverse direction (R.SKIP), that is, the data file number is decremented one by one,
An operation of moving the file to be reproduced or edited is performed (step S608).

If the fast-return button 206 has not been turned ON, the flow advances to step S609, and the folder button 211 has been turned ON.
It is determined whether or not it has been performed. Folder button 211 is ON
If the ON operation has been performed, it is further determined whether or not the ON operation has been continuously performed for 0.5 seconds or more (step S61).
0).

When the folder button 211 is ON for 0.5 second or longer, an audio monitor signal is output (step S61).
1). The audio monitor signal is a signal output from the headphone terminal R111 and the headphone terminal L112 for monitoring without recording the audio input from the microphone 101 or the microphone jack 102 on the memory card 117 or the like.

If the ON time of the folder button 211 is less than 0.5 seconds, the switching operation of the three folders for storing the DSS file provided on the memory card 117 is performed (step S612). The folder is cyclically switched for each operation such as folder A → folder B → folder C → folder A →.

Next, in step S613, the menu button 2
It is determined whether or not 10 is ON. Menu button 2
When the switch 10 is turned on, an R / MENU process (step S614), which will be described in detail later, is executed to make various settings relating to the recorder mode.

If the menu button 210 has not been turned on, the flow advances to step S615 to determine whether or not the delete button 208 has been turned on. If the erase button 208 has been turned on, an ERASE process (step S
616) to delete the desired DSS file.

If the erase button 208 has not been turned on, the flow advances to step S617 to determine whether the stop button 204 has been turned on. When the stop button 204 is turned on, a memory remaining amount is displayed (step S618). More specifically, the CPU 116 detects the free space of the memory card 117, calculates how long the recording can be performed in the currently set recording mode by the CPU 116, and turns the stop button 204 ON. Is displayed on the main display unit 202 only during the operation.

If the stop button 204 has not been turned on, the flow advances to step S619 to determine whether or not the alarm reproduction time has arrived. When it is determined that the alarm playback time has arrived, the alarm playback is performed (step S62).
0). Alarm playback is a function in which an alarm sounds at a preset alarm playback time, an alarm is released if any button is operated during that time, and then a preset encoded data file is played back. is there.

If it is determined that the alarm playback time has not arrived, the flow advances to step S621 to determine whether or not a personal computer as an external device is connected via a USB cable. If it is determined that it is connected to a personal computer, the communication mode with the personal computer is entered (step S6).
22).

If it is determined that the personal computer is not connected to the personal computer, the flow advances to step S623 to execute a switch switching process described later in detail, and then returns to step S601.

Next, the recording operation in the recorder mode will be described with reference to the flowchart of FIG. 7 showing the REC processing. During the R / S processing in FIG. 6, the recording button 203 is operated (O
N), the flowchart of the REC process is executed.

First, it is determined whether the memory card 117 is write-protected (whether the memory card 117 is write-protected) (step S701). In the case of write-protection, an audio signal input from the microphone 101 or the like cannot be encoded and recorded on the memory card 117. Therefore, a warning sound is emitted from the speaker 213 and a mark indicating that write-protection is performed ( Key or the like) is displayed on the main display unit 202 (step S70).
2), the REC process ends.

If the memory card 117 has not been write-protected, the free space (remaining capacity or unused area capacity) of the memory card 117 is checked to determine whether a DSS file can be recorded any more. . In addition, the number of existing files in the current folder (current folder) for which new recording is to be performed is checked to determine whether the number is 198 or less (step S703).

As a result of the determination, if it is determined that no more data can be recorded due to the lack of free space on the memory card or the limitation on the number of files, a beep is sounded and "F
The main display indicates that the free space of the memory card 117 is insufficient for recording the DSS file, or that the number of existing files in the current folder is 199 and no more data can be recorded. Part 2
02 (step S704), and the REC process ends.

If it is determined that there is free space in the memory card 117, new recording is started with the file number next to the last file number of the current folder according to the set parameters (step S705).

Next, it is determined whether or not the recording button 203 has been turned on again during recording (step S706). If it is determined that the recording has been turned on, the recording is temporarily stopped.
A RECPAUSE process, which will be described in detail later, is performed (step S
707).

If the recording button 203 has not been turned on, it is determined whether or not the reproduction button 205 has been turned on (step S708). If it is determined that the switch is turned on, the sound recording operation is stopped (step S709). In addition,
After the recording operation is stopped, if the newly created DSS file is the 199th in the current folder, that is, if the maximum number of recordable files is reached, it is assumed that the DSS file cannot be recorded in that folder any more. A warning sound is output from the speaker 213 to notify the operator, and the folder name and “1” are displayed on the main display unit 202.
The character "99" blinks.

Although the above-mentioned warning processing is not particularly described, it is also performed at the time of the step of stopping the recording described later. Then, after stopping the recording, the current position information (file pointer) of the file, which manages which data in the entire file is being operated.
Is updated to the start position of the newly recorded file (S71).
0), the REC process ends, and the process proceeds to a reproduction process (R / PLAY) described in detail later.

If the reproduction button 205 has not been turned on, it is determined whether or not the stop button 204 has been turned on (step S711). When the stop button 204 is turned on, the currently performed recording operation is stopped (step S7).
12) A warning sound indicating that the recording operation has been completed is output from the speaker 213 (step S713), the current position information of the file is updated to the head position of the newly recorded file (step S714), and the REC process is performed. finish.

If the stop button 204 has not been turned on, it is determined whether or not the index button 209 has been turned on (step S715). If it is determined that the index button 209 has been turned ON, it is determined whether or not an index mark can be recorded (step S716). Specifically, in the case of the present embodiment, the number of index marks in one file is limited to 16 or less, so the number of index marks in the currently recorded file is checked, and the number of index marks is 15 It is determined whether it is within.

If the number of index marks in the file currently being recorded is 15 or less, the index mark is recorded at the position in the file when the index button 209 was turned on (step S717). Since it is not possible to record marks, "INDEX FUL
A warning display “L” indicating that the index mark cannot be recorded any more is blinked on the main display unit 202 for two seconds (step S718).

If the index button 209 has not been turned on, it is determined whether or not the free space of the memory card 117 is still left (step S719). If it is determined that there is still free space on the memory card 117 and recording can be continued, the process returns to step S706. Otherwise, the above-described steps S712 to S714 are executed, and the REC process ends.

FIG. 8 is a flowchart showing the RECPAUSE process. The RECPAUSE process is for performing a process of temporarily stopping the recording of a DSS file.
This process is executed when 03 is turned on.

First, the recording of the file is temporarily stopped (step S801), a timer trp for measuring the time after the operation is stopped is started (step S802), and it is determined whether or not the recording button 203 is turned on. Is determined (step S803).

If it is determined that the recording button 203 has been turned on, the timer trp is stopped (step S).
804), the recording is restarted (step S805), and the process returns to the original state.

If the recording button 203 has not been turned on, it is determined whether or not the reproduction button 205 has been turned on (step S806).

If it is determined that the play button 205 has been turned on, the recording of the currently paused file is stopped (step S807), the timer trp is stopped (step S808), and the current position information of the file is deleted. Is updated to the start position of the newly recorded DSS file (step S809), and the RECPAUSE process ends.
The processing shifts to the R / PLAY processing for performing the reproduction processing in the recorder mode.

If the reproduction button has not been turned on, it is determined whether or not the index button 209 has been turned on (step S810). If it is determined that the index button 209 has been turned on, it is determined whether or not an index mark can be recorded (step S811). If the number of index marks in the file currently being recorded is 15 or less, that is, if index marks can be recorded, the index button 2
If an index mark is recorded at the position in the file at the time of turning on 09 (step S812), otherwise, a warning display of "INDEX FULL" indicating that the index mark cannot be recorded any more is displayed on the main display unit. Flashing is displayed on the display 202 for 2 seconds (step S8)
13). Then, since the operation of the operation button is performed, the timer trp is reset once and restarted (step S814).

If the index button 209 has not been turned on, it is determined whether or not the stop button 204 has been turned on (step S815). If the stop button 204 has not been turned ON, it is determined whether the time measured by the timer trp has exceeded 10 minutes (step S816). Stop button 204
Is ON, or when the time measured by the timer trp exceeds 10 minutes, the timer trp is stopped (step S817), the temporarily stopped recording operation is stopped (step S818), and the recording operation is stopped. A warning sound indicating the end is output from the speaker 213 (step S
819), the current position information of the file is updated to the start position of the newly recorded DSS file (step S82).
0), the REC process ends, and the process proceeds to the R / S process.

In step S815, the stop button 204 has not been turned on, and the time measured by the timer trp is 1
If it does not exceed 0 minutes, the process returns to step S803, and the above processing is repeated. Note that the value of 10 minutes, which is the determination value of the measurement time of the timer trp, is used to determine that it will not be meaningful to continue the pause state any longer. Alternatively, it may be set appropriately according to the operator or the like.

FIGS. 9 and 10 are flowcharts of the R / PLAY processing which is the reproduction processing in the recorder mode.

First, the current position information of the file is read, and reproduction is started from that position (step S90).
1). Next, it is detected whether or not the reproduction button 205 is turned on (step S902). If the play button 205 is turned on, it is further detected whether or not the continuation time is 1 second or longer (step S903). If the play button 205 is turned on for 1 second or longer, the reproduction speed is set. To change.

In the present audio recording / reproducing apparatus, the reproduction speed can be 1.5 times the fast listening speed in addition to the normal 1 times speed. If the playback speed is 1 ×, the speed is changed to 1.5 ×, and if the playback speed is 1.5 ×, the speed is changed to 1 × (step S904). If the ON time of the play button 205 is less than 1 second, a temporary stop R / PLAYPAUSE process described later is executed.

If the play button 205 has not been turned on, it is determined whether or not the fast forward button 207 has been turned on (step S906). When the fast-forward button 207 is turned on, it is further determined whether or not the duration is 0.5 seconds or longer (step S907). A CUE process, which is a fast-forward playback process, is executed (step S908). If the ON time of the fast-forward button 207 is less than 0.5 seconds, a skip operation in the forward direction (F.SKIP) is performed (step S909).

If the fast forward button 207 has not been turned ON, it is determined whether the fast return button 206 has been turned ON (step S910). When the fast-return button 206 is turned on, it is further determined whether or not the continuation time is 0.5 seconds or longer (step S911). An REV process, which is a fast reverse playback process, is executed (step S912). If the ON time of the quick return button 206 is less than 0.5 seconds, a skip operation in the reverse direction (R.SKIP) is performed (step S913).

If the quick return button 206 has not been turned on, it is determined whether or not the erase button 208 has been turned on (step S914). If the delete button 208 is turned on, an ERASE process, which is a file delete process described later, is executed (step S915).

If the delete button 208 has not been turned on, it is determined whether or not the index button 209 has been turned on (step S916). If it is determined that the index button 209 has been turned on, it is determined whether or not an index mark can be recorded (step S917). The currently playing file is not write-protected, or the index mark in the currently playing file is 15
If it is within the number, that is, if the index mark can be recorded, the index mark is recorded at the position in the file when the index button 209 is turned on (step S).
918) Otherwise, a key mark indicating that the file is write-protected, or "INDE
A warning display indicating that the index mark cannot be recorded any more, such as “X FULL”, is displayed on the main display unit 202.
The upper part blinks for two seconds (step S919).

If the index button 209 has not been turned on, it is determined whether or not the folder button 211 has been turned on for one second or longer (step S920). Folder button 21
When 1 is turned on for 1 second or longer, a move process, which is a file move process described later, is executed (step S92).
1).

If the folder button 211 has not been turned on for one second or longer, it is determined whether or not the stop button 204 has been turned on (step S922). If the stop button 204 is turned on, the reproduction operation is stopped (step S923), the current position information of the file is updated to the head position of the file whose reproduction is stopped (step S924), and the R / PLA
The Y processing ends.

If the stop button 204 has not been turned on, it is determined whether or not the playback position has reached the end of the currently played file (step S925). If the playback position reaches the end of the file currently being played back, the playback operation is stopped (step S926), and it is determined whether or not this is the file with the last file number in the current folder (step S927). If it is the last file, the current position information of the file is updated to the first position of the last file (step S928). If it is not the last file, the current position information of the file is updated to the file of the file whose reproduction has been completed. The file is updated to the head position of the file having the file number following the number (step S929).

In this way, when the reproduction of one file is completed, the reproduction button 205 is turned on again without the need to operate the fast forward button 207 or the like, so that the next file is reproduced immediately. Can be done.

If it is determined in step S925 that the playback position has not reached the end of the file, step S9
02, and the above processing is repeated.

FIGS. 11 and 12 are flowcharts of the R / PLAYPAUSE process which is the playback pause process in the recorder mode.

First, a timer tpp for measuring the time during which reproduction is paused is started (step S1001), and reproduction is paused (step S100).
2). Next, it is detected whether or not the reproduction button 205 has been turned on again (step S1003). If the reproduction button 205 has been turned on, the timer tpp is stopped (step S1004), and the pause is released (step S1005). Return to / PLAY processing.

Steps S1006 to S102
5 is basically performed by the R / PLA shown in FIGS.
The Y processing is the same as the processing from step S906 to step S921, except that the above-described timer tpp is stopped when each operation button is turned on, and after the operation corresponding to each operation button is completed, the timer tpp is stopped. Since only the point of resetting and restarting is described, detailed description is omitted.

In step S1026, it is determined whether or not the time measured by the timer tpp has reached 10 minutes or more, that is, whether or not 10 minutes or more have elapsed since the reproduction was temporarily stopped and the last operation was completed. In the case of YES, a warning sound to release the pause and stop the reproduction is output (step S102).
7) Playback is stopped (step S1028), the current position information of the file is moved to the head of the file whose playback is stopped (step S1029), the timer tpp is stopped (step S1030), and the process shifts to R / S processing. .

At step S1026, the timer tp
If the measurement time of p is less than 10 minutes, the stop button 204
It is determined whether N has been performed (step S1031). When the stop button 204 is turned on, the above-described step S1
After executing steps 028 to S1030, the process shifts to the R / S process. Otherwise, the process returns to step S1003.

FIG. 13 is a flowchart of the CUE process which is a fast-forward playback process. First, 1 is set to the counter N (step S1101). Next, it is determined whether the value of the counter N is 4 or less (step S110).
2). When the value of the counter N is determined to be 4 or less,
The current position information of the file is advanced by 15 seconds (step S1
103), and the process proceeds to step S1107.

If NO is determined in the step S1102, the process proceeds to a step S1104, where the counter N
Is not less than 5 and not more than 9. Where Y
In the case of ES, the current position information of the file is advanced by 30 seconds (step S1105), and the process proceeds to step S1107.

If NO is determined in step S1104, the current position information of the file is advanced by one minute (step S1106), and the flow advances to step S1107.

In step S1107, it is determined whether or not an index mark has been added to the portion fast-forwarded in step S1103, S1105 or S1106. If an index mark is given to the fast-forwarded part, the current position information of the file is moved to the place where the index is given (step S110).
8).

Subsequently, a file for one second is reproduced from the location stored in the current position information of the file (step S1109). At this time, prior to the reproduction of the file, if a predetermined silence period is created according to the amount of fast-forwarding, the operational feeling is further improved. Further, at the time of this reproduction, 1.5 times speed reproduction may be performed. Then, it is determined whether or not the fast forward button 207 is kept ON (step S111).
0). If the fast forward button 207 is not turned on, the CUE
The process ends.

If the fast-forward button 207 has been kept ON, it is determined whether or not the end of the file for which the CUE process has been performed has been reached (step S1111). If the end of the file has been reached, it is further determined whether or not the file is the file with the last file number in the current folder (step S1112). If the file has the last file number, a warning sound indicating this is output from the speaker 213 (step S1113), the current position information of the file is moved to the top of the last file (step S1114), and the CUE Terminates processing and returns to P /
Move to S processing.

If it is determined in step S1112 that the file is not the last file number, the CUE
A warning sound indicating that the end of the file being processed has been reached is output from the speaker 213 (step S111).
5) The current position information of the file is moved to the head of the file having the next file number (step S1116). Then, the fast-forward button 207 is turned on within one second after the warning sound is output.
It is determined whether the state has been canceled (step S111).
7). If the ON state of the fast-forward button 207 is released within one second, the CUE process ends and the process returns.

In step S1117, if the ON state of the fast-forward button 207 is not released within one second, and if it is determined in step S1111 that the end of the file is not reached, the value of the counter N is set to 10 or more. It is determined whether or not there is (step S1118). If the value of the counter N is less than 10, the value of the counter N is incremented (Step S1119), and Step S1102 is performed.
And the above processing is repeated. The value of the counter N is 10
If so, the process returns to step S1106, and the above processing is repeated.

In the above-described processing, by keeping the fast-forward button ON, the fast-forward amount is increased stepwise, which is very effective for searching for information in a file. Also,
Although the counter is used in the present embodiment, the fast-forwarding amount may be increased depending on the ON time. Furthermore, in the present embodiment, so-called intermittent playback is used as fast-forward playback.
The reproduction speed itself may be increased.

FIG. 14 is a flowchart of the REV process which is the fast reverse playback process. First, 1 is set to the counter N (step S1201). Next, it is determined whether the value of the counter N is 4 or less (step S120).
2). When the value of the counter N is determined to be 4 or less,
Return the current position information of the file by 16 seconds (step S1
203), and proceed to step S1207.

If NO is determined in the step S1202, the process proceeds to a step S1204, where the counter N
Is not less than 5 and not more than 9. Where Y
In the case of ES, the current position information of the file is returned by 31 seconds (step S1205), and the process proceeds to step S1207.

If NO is determined in step S1204, the current position information of the file is returned by one minute and one second (step S1206), and the flow advances to step S1207.

In step S1207, it is determined whether or not an index mark has been added to the portion that has been fast-returned in step S1203, S1205, or S1206, or whether the file has reached the beginning of the file. If the index mark is given to the part that has been fast-returned, or if it is the beginning of the file, the current position information of the file is added to the location where the index is given,
Alternatively, it moves to the head of the file (step S120)
8).

Subsequently, a file for one second is reproduced from the location stored in the current position information of the file (step S1209). At this time, prior to the reproduction of the file, if a predetermined silence period is created in accordance with the amount of the fast rewind, the operational feeling is further improved. In addition, the speed at the time of reproduction is 1.5
It may be double speed. Then, it is determined whether or not the fast return button 206 is kept ON (step S1210). If the quick return button 206 has not been turned ON, the present REV processing ends.

If the fast-return button 206 has been kept ON, it is determined whether or not the head of the file on which the REV process is being performed has been reached (step S1211). When the file reaches the beginning, a warning sound is given to the speaker 213 to that effect.
The file is output (step S1212), and it is determined whether the file is the earliest file, that is, the file having the first file number (step S1213).

If it is determined that the file is the earliest file, it is determined whether or not the fast-return button 206 is kept ON, and the process waits until the fast-return button 206 is turned off (step S).
1214) If the fast return button 206 is turned off, the flow shifts to R / S processing.

If it is determined that the file is not the earliest file, it is determined whether or not the ON state of the quick return button 206 has been released within one second (step S1215). Return to the routine.

If the ON state of the fast-return button 206 has not been released within one second, the current position information of the file is moved to the end of the file having the previous file number (step S1216), and the flow advances to step S1217. move on.

If it is determined in step S1211 that the file is not the head of the file, the process proceeds to step S1217.

In step S1217, it is determined whether or not the value of the counter N is equal to or greater than 10. If N is equal to or greater than 10, the process returns to step S1206 to repeat the above processing.
If not, the counter N is incremented (step S1218), and the process returns to step S1202 to repeat the above processing.

By continuing to turn on the fast-return button by the above-described processing, the fast-rewind amount is increased stepwise, which is very effective for searching for information in a file. Also,
Although the counter is used in the present embodiment, the fast-return amount may be increased according to the ON time. Furthermore, in this embodiment, so-called intermittent playback is used as fast reverse playback.
Reverse playback may be performed to increase the speed itself.

FIG. 15 shows ERAS which is a file erasing process.
It is a flowchart figure of E processing. First, it is determined whether or not the file to be erased is write-protected. This includes the case where the memory card 117 itself is write-protected (step S1301). In addition,
The file to be erased is the file specified by the current position information of the file when this ERASE processing is started,
That is, the current file at the time of transition to the ERASE processing. If it is determined that writing to the memory card 117 is prohibited, the display of the key mark blinks on the main display unit 202 and a warning sound is output to the speaker 213.
Is output to warn the operator that writing is prohibited (step S1302), and return to the original state.

If writing to the memory card 117 is not prohibited, if an operation during reproduction is being performed, the operation is stopped (step S1303), and the mode shifts to the erasure preparation mode (step S1304). ), Timer t
er is started after resetting (step S130).
5). Here, the erasure preparation mode is a mode for preparing a file for erasure, in which the number of a file to be erased is blinked, and the operator is allowed to confirm which file is to be erased. In this mode, a file is deleted when a deletion operation is performed within a predetermined time. The timer ter is a timer for measuring the above-mentioned predetermined time.

More specifically, using a flowchart, first, it is determined whether or not the delete button 208 has been turned on again (step S1306). If it is determined that the delete button 208 has been turned on again, an instruction to delete the target file is issued. It is determined that the file has been deleted and the target file is deleted from the memory 117 (step S
1307) and stop the timer ter (step S131)
0), and cancels the erase preparation mode (step S131)
1).

If it is determined that the erase button 208 has not been turned on, then buttons other than the erase button 208, such as the play button 205, the stop button 204 and the menu button 210, are turned off.
N is determined (step S1308), and ON
If it is determined that the file has been deleted, it is determined that the erasing operation has been canceled, and the step S131 is performed without deleting the file.
0, and proceed to S1311.

If it is determined that none of the buttons other than the erase button 208 has been turned ON, it is determined whether or not the timer ter has counted for 8 seconds or more (step S1309). If the value of the timer ter is less than 8 seconds, step S1306
Return to step S1306, S1308 and S13
Step 09 is repeated. If the timer ter is equal to or longer than 8 seconds, the process exits the above loop and proceeds to steps S1310 and S13.
Proceed to 11.

After the erasure preparation mode is canceled (step S1311), it is determined whether the operation mode is the recorder mode or the player mode (step S1312). If the mode is the recorder mode, the process shifts to the R / S process. If the mode is the player mode, the process shifts to the P / S process and the ERASE process ends.

FIG. 16 shows MOV which is a file moving process.
It is a flowchart figure of E processing. First, it is determined whether the memory card 117 is write-protected (step S1).
401). However, in this case, unlike during the deletion process,
This does not include the case where write protection is set for the transfer target file itself. The file to be moved is the file
This is the current file when the OVE processing is started. If write-protection has been set on the memory card 117, the key mark flashes on the main display unit 202 and a warning sound is output from the speaker 213 to notify the operator that the file cannot be moved (step S1). S
1402), the move process ends.

If writing to the memory card 117 is not prohibited, a destination is designated (step S140).
3). The destination is specified by the fast forward button 207 and the fast reverse button 20.
6, the folder A,
Since B and C are displayed cyclically, the folder to be moved is displayed, and the play button 203 is used to confirm the folder. If these buttons are not operated for 8 seconds or the stop button 204 is turned on, this processing is terminated and the R / S
The process moves to step S601.

Next, it is determined whether or not the file can be moved to the destination folder determined in the above step (step S1404). Specifically, it is checked whether the number of files in the destination folder is 199. The number of files in the destination folder is 1
If the number is less than 99, the target file is moved because it can be moved (step S1405), and the current position information of the file is moved to the head position of the moved file (step S1).
407), after ending this move processing, shift to R / S processing. The moved file is assigned the final file number of the moved folder.

When it is determined that the file cannot be moved, a message “FULL” indicating that the number of files in the destination folder is full is displayed on the main display unit 202, and a warning sound is output from the speaker 213. (Step S1
406) Then, the current position information of the file is moved to the head of the current file (step S1407), and the MO
The VE processing ends, and the processing shifts to the R / S processing.

FIG. 17 is a flowchart of the R / MENU processing which is the menu setting processing in the recorder mode. Here, various parameters used in the recorder mode can be set.

First, a setting item is selected (step S
1501). To select a setting item, use the fast forward button 207 and the fast rewind button 206 to move the desired setting item to the main display unit 2.
02, and is confirmed by turning on the reproduction button 205. When the user wants to cancel the setting, the stop button 204
Turn ON. Next, it is determined what the determined setting item is (step S1502), and the process proceeds to steps S1503 to S1511 to be described later accordingly. In addition,
When the stop button 204 is turned on at the time of setting item selection,
It proceeds to step S1512 as it is.

In the recording mode setting, voice is stored in the memory 117.
The recording mode of the audio data when recording to is set (step S1503). In the case of the present audio recording / reproducing apparatus, the recording mode includes an SP mode which is a normal recording mode,
It is possible to set two recording modes, the LP mode, in which the data amount is small and the recording is possible for a long time as compared with the mode, but the sound quality is deteriorated accordingly.

The setting of parameters and the like can be performed by using the fast forward button 207.
The parameter is changed using the fast return button 206 and the playback button 205 is turned on, and the setting is confirmed. To stop the setting, the stop button 204 is turned on. This operation method is the same for various settings described later.

In the special effect setting in the recorder mode, the special effect at the time of sound reproduction is set (step S150).
4). The present audio recording / reproducing apparatus has a function of changing a frequency characteristic at the time of reproducing an audio and improving clarity of the audio. The degree of the change can be set in six stages from 0 to 5, and the setting is performed.

In the write prohibition setting, write prohibition setting is performed for each file (step S1505). When the write-protection is set, the file cannot be rewritten, such as deleting the file and editing the index.

In the alarm setting, ON / OF of the alarm
F and the alarm time are set (step S150)
6). In the alarm setting, first, ON / OFF only is set, and when ON is set, an alarm time at which an alarm sounds is set. At the time when the alarm is set, the alarm is output for 5 minutes, and if any button is operated during that time, the current file at the time the menu processing is started is reproduced.

By the way, if the user does not want to play back the file after the alarm sounds, the user must remove the memory card 117 to start the MENU processing, remove the memory card 117 at the time of the alarm, or do nothing. What is necessary is just to specify the file which is not recorded.

In the BEEP sound setting, an operation sound when various operation buttons are operated is set (step S1507).
Here, ON / OFF (with / without operation sound) can be set.

In the time setting, the time of the internal clock is adjusted (step S1508). The time can also be set in step S502 when the battery is replaced or the like.

In the setting of the folder name, the folder name for storing the DSS file is set (step S150).
9). In the ID setting, the user ID of the audio recording / reproducing apparatus recorded in the internal memory 122 is set (step S1510). In the format setting, the memory card 117 is initialized (step S151).
1).

It is determined whether the various settings described above are completed, or whether the menu settings are completed if no setting item is specified (step S1512). In step S1501 or S1503 to S1511, when the stop button 204 is turned on to end the processing, it is determined that the menu setting is to be ended, and the process returns to the original flowchart. If not, the process returns to step S1501, and the above processing is repeated.

As described above, in the R / MENU process, only the items related to the recorder mode are set, and the items used only in the player mode are not set.

FIG. 18 is a flowchart of the switch switching process. The specific switches here are the hold switch 221 and the operation mode switch 219.

First, it is determined whether or not the hold switch 221 is turned on (step S1601). If it is ON, input of operation buttons such as the recording button 203 and the reproduction button 205 is prohibited (step S1602), and it is determined whether or not the operation such as reproduction or recording is continuously performed. If the operation has been performed, the process waits for the operation to end (step S1603). If the operation is not performed or completed, the operation mode of the CPU 116 is shifted to the power saving mode by lowering the driving clock of the CPU 116 (step S1604), and the hold switch 221 is turned off (released). (Step S
1605). Then, the hold switch 221 is turned off.
Then, the operation input is permitted again (step S160).
6) The CPU 116 returns the clock to the normal operation frequency to return the CPU 116 to the normal mode (step S1607).

If the hold switch 211 is OFF, it is determined whether the operation mode switch 219 has been switched (step S1608). If the operation mode has not been switched, the flow returns to the original flowchart.

On the other hand, when the operation mode is switched, if an operation such as reproduction is performed, the operation is stopped (step S1609). Then, the destination is changed according to the current state of the operation mode switch 219 and whether or not the memory card 117 is attached to the main body (steps S1610 to S1612).

That is, when the operation mode switch 219 is in the recorder mode and the memory card 117 is
Move to S processing. When the operation mode switch 219 is in the recorder mode and there is no memory card 117, the R / NC
Move on to processing. If the operation mode switch 219 is in the player mode and there is a memory card 117, the processing shifts to the P / S processing. When the operation mode switch 219 is in the player mode and there is no memory card 117, the processing shifts to the P / NC processing.

FIG. 19 is a flow chart of the main switch OFF process showing the process when the main switch 226 is turned off. This process is urgent,
Treated as interrupt processing.

First, when operations such as recording of reproduction have been performed, the operations are stopped, and the FAT is stored in the memory card 117.
And the like, and if the file is open, an operation such as closing is performed (step S1701). Next, the display shifts to the power saving mode by turning off the display of the main display unit 202, lowering the operation clock of the CPU 116 (step S1702), and waits until the main switch 226 is turned on again (step S1703).

When the main switch 226 is turned on, the operation clock of the CPU 116 is returned to the frequency at the time of normal operation, the display of the main display unit 202 is turned on, various initial settings are performed, and the mode is returned to the normal mode (step S17).
04). Steps S1705 to S1707 are the same as steps S1610 to S1612 described above, and a description thereof will be omitted.

FIG. 20 is a flow chart showing the processing when the operation mode is set to the recorder mode and the memory card 117 is not loaded.

First, it is determined whether or not the menu button 210 has been turned on (step S1801). Menu button 21
When 0 is turned ON, the above-described R / MEMU processing is executed. However, since the memory card 117 is not inserted, the write-protection setting (step S1505), the folder name setting (step S1509), and the format setting (step S1511) cannot be selected in the setting item selection (step S1501). deep. For example, an item that cannot be set may not be displayed on the main display unit 202 even if the fast forward button 207 or the fast reverse button 206 is operated, or may not be determined even if the play button 205 is pressed.

If the menu button 210 has not been turned on, it is determined whether or not the memory card 117 has been loaded (step S1803). If the memory card 117 is loaded, it is checked whether the memory card 117 can be used (step S1804). If the memory card 117 can be used, the process proceeds to the R / S processing.

The memory card 117 is not formatted (initialized) normally because the memory card 117 is not properly formatted (initialized).
Is determined not to be usable, the operator is prompted to select whether or not to format the memory card 117 (step S1805). If formatting is selected, the memory card 117 is formatted (step S1806), and the process returns to step S1804.

If not performing formatting is selected, the operation mode of the CPU 116 is shifted to the power saving mode (step S1807), the display is turned off, and the operation waits until any operation button is turned on (step S1808). ).

If any operation button is turned on, the operation mode of the CPU 116 is shifted to the normal mode (step S1809), and the process returns to step S1805.
That is, when the memory card 117 that is not in a usable state is loaded, the operation related to the recording and reproduction of the normal sound cannot be performed without formatting. When the memory card 117 is removed, the above-described main switch OFF processing is performed in the interrupt processing.

If it is determined in step S1803 that the memory card 117 has not been loaded, it is determined whether an alarm time has come (step S181).
0). When the alarm time comes, the memory card 1
Since there is no audio file to be reproduced because 17 is not loaded, a display indicating that the alarm time has arrived is performed, and only the alarm sound is output. By turning on any operation button while the alarm sound is being output, the alarm sound can be stopped (step S1811).

If it is determined that the alarm time has not arrived, it is determined whether or not it is connected to a personal computer (step S1812). If it is determined that it is connected to a personal computer, the mode is shifted to the communication mode, and operation control is performed from the personal computer (step S181).
3).

If it is determined that the memory card 117 is not connected to the personal computer, the predetermined operation button (recording button 20) which is meaningless to be turned on when the memory card 117 is not loaded.
3. It is determined whether or not the reproduction button 205, the delete button 208, etc.) have been turned on (step S1814). If the button has been turned on, a warning sound is output from the speaker 213 (step S1).
815).

If it is determined that the predetermined button has not been turned ON, the above-described switch switching processing (step S181)
6) is executed, and the process returns to step S1801.

FIG. 21 is a flowchart showing a process when the operation mode is set to the player mode and the memory card 117 is loaded.

First, it is determined whether or not the recording button 203 has been turned on (step S1901). Since sound cannot be recorded in the player mode, when the recording button 203 is turned on, a warning sound is output from the speaker 213 to inform the operator that recording is not possible (step S1902).

If the recording button 203 has not been turned on, the flow advances to step S1903 to determine whether the reproduction button 205 has been turned on. When the play button 205 is turned on, a P / PLAY process (step S
1904).

If the play button 205 has not been turned on, the flow advances to step S1905 to determine whether or not the fast forward button 207 has been turned on. When the fast forward button 207 is turned on, a skip operation in the forward direction (F.SKIP), that is, an operation of incrementing the data file number by one and moving the file to be reproduced or edited is performed (step S1). S1906).

If the fast-forward button 207 has not been turned on, the flow advances to step S1907 to turn on the fast-return button 206.
It is determined whether or not it has been performed. When the fast return button 206 is turned on, a skip operation in the reverse direction (R.SKIP)
That is, the data file number is decremented one by one, and the operation of moving the file to be reproduced or edited is performed (step S1908). In addition, F. SKIP and R.A. When the SKIP operation is performed, the file name of the destination file is displayed on the main display unit 202 for a predetermined time after the operation is stopped.

If the fast-return button 206 has not been turned on, the flow advances to step S1909, and the folder button 211
It is determined whether or not N is set. The folder button 211 functions as a repeat mode switching button in the player mode. Therefore, when the folder button 211 is turned on,
Each time the switch is turned ON, the repeat mode is cyclically switched in the order of normal playback mode, one-song repeat playback mode, all-song repeat playback mode, random playback repeat mode, random playback mode, and normal playback mode (step S1910).

If the folder button 211 has not been turned on, the flow advances to step S1911 to determine whether or not the index button 209 has been turned on (step S191).
1). The index button 209 functions as an equalizer (frequency characteristic) switching button in the player mode. Therefore, the equalizer mode is set to normal and
The cyclic switching is performed in the order of pop, jazz, classical music, user-defined, and normal (step S191).
2).

If the index button 209 has not been turned on, the flow advances to step S1913 to determine whether the menu button 210 has been turned on. When the menu button 210 is turned on, a P / MENU process (step S1914), which will be described in detail later, is executed to perform various settings relating to the player mode.

If the menu button 210 has not been turned on, the flow advances to step S1915 to determine whether or not the delete button 208 has been turned on. If the erase button 208 has been turned on, the above-described ERASE processing is executed (step S1916), and the desired MP3 or WMA file is erased.

If the erase button 208 has not been turned on, the flow advances to step S1917 to determine whether the stop button 204 has been turned on. When the stop button 204 is turned on, property display is performed. Specifically, the stop button 2 is used to stop the encoding algorithm and bit rate of the current file.
It is displayed on the main display unit 202 only while 04 is ON. By the way, while stopped, the playback number and current position of the file are displayed.

If the stop button 204 has not been turned on, the flow advances to step S1919 to determine whether or not the alarm playback time has come. When it is determined that the alarm playback time has come, the alarm playback is performed (step S1).
920). Alarm playback is a function in which an alarm sounds at a preset alarm playback time, an alarm is released if any button is operated during that time, and then a preset encoded data file is played back. is there.

If it is determined that the alarm playback time has not arrived, the flow advances to step S1921 to determine whether or not a personal computer as an external device is connected via a USB cable. If it is determined that the personal computer is connected to the personal computer, it enters the communication mode with the personal computer (step S
1922).

If it is determined that it is not connected to a personal computer, the flow advances to step S1923 to execute the above-described switch switching processing, and then returns to step S1901.

FIG. 22 is a flowchart showing the P / PLAY processing for performing the reproduction processing when the operation mode is the player mode.

First, reproduction is started from the position of the current position information of the file (step S2001). At this time, after information on the reproduced file such as the artist name and the song name is displayed on the main display unit 202 for a predetermined time after the reproduction of the file is started, the display is switched to the display of the file number and the current position.

Next, it is determined whether or not the reproduction button 205 has been turned on (step S2002). Play button 205 during playback
Is turned on, the reproduction is paused. If the reproduction is paused, the reproduction is resumed from the position where the reproduction was paused (step S200).
3).

If it is determined that the play button 205 has not been turned on, the fast forward button 207 or the fast return button 206
It is determined whether N has been performed (step S2004). If it is determined that the fast-forward button 207 or the fast-return button 206 has been turned ON, it is further determined whether or not the ON duration is 0.5 seconds or longer (step S2005). O
N is less than 0.5 seconds, and the forward skip (F.N.) is performed when the fast forward button 207 is ON.
SKIP), and in the case of the fast reverse button 206, a backward skip (R. SKIP) is performed (step S2006).
If the ON duration is 0.5 seconds or longer, the fast forward button 207 performs the FF processing described later, and the fast return button 206
In the case of (1), each of the REW processes described later is executed (step S2007).

In step S2004, the fast forward button 20
7 or the fast-return button 206 is not turned on, it is determined whether or not the folder button 211 is turned on (step S2008). In the player mode, there is no folder as in the recorder mode, so the folder button functions as a repeat mode switching button. Therefore, when it is determined that the folder button 211 has been turned ON, the same repeat mode switching as in step S1910 is performed (step S2009).

If the folder button 211 has not been turned on, it is determined whether or not the index button 209 has been turned on (step S2010). Index button 209 is ON
If it is determined that the equalization has been performed, equalizer switching similar to that in step S1912 is performed (step S2011).

If the index button 209 has not been turned on, it is determined whether or not the menu button 210 has been turned on (step S2012). In player mode,
When playing or pausing a file,
The menu button 210 functions as a special effect switching button. Therefore, when the menu button 209 is turned on, the surround setting and the bass enhancement setting can be performed. By operating the fast-forward button 207 and the fast-return button 206, these two settings can set six levels of intensity from 0 to 5. The reproduction or the reproduction pause state is continued during the setting (step S2013).

If the menu button 210 has not been turned on, it is determined whether or not the delete button 208 has been turned on (step S2014). When the erase button is turned on, the ERASE process, which is the above-described file erase process, is executed (step S2015).

If the erase button 208 has not been turned on, it is determined whether or not the stop button 204 has been turned on (step S2016). If the stop button 204 is turned on, the reproduction operation (including the reproduction pause) is stopped (step S2017), and the current position information of the file is moved to the head of the file being reproduced (step S2018).
This P / PLAY processing ends, and the flow shifts to P / S processing.

If the stop button 204 has not been turned on, it is determined whether or not the reproduction has been completed up to the end of the file being reproduced (step S2019). When the reproduction is completed up to the end of the file, it is determined whether or not the file whose reproduction has been completed is the file of the last file number in the player mode (step S2020). If it is not the last file, the current position information of the file is moved to the head of the file in the next order (step S2022), and the process returns to step S2002. If it is the last file,
The reproduction operation (including the reproduction pause) is stopped (step S2021). Then, after moving the current position information of the file to the head position of the earliest file number in the player mode (step S2023), the process shifts to the P / S process.

If it is determined in step S2019 that the reproduction has not been completed up to the end of the file,
Returning to step S2002, the above processing is repeated.

FIG. 23 is a flowchart showing the FF process for performing the fast-forward operation process. In the fast-forward processing in the player mode, the CUE in the recorder mode is used.
Unlike the processing, during the fast forward, the current position information of the file is moved, but no sound is reproduced.

First, a timer tff for measuring the time from the start of the fast-forward processing is started (step S).
2101) When the reproduction is being performed, the output of the reproduction sound is temporarily stopped, and the fast forward of the current position information of the file is started at a speed four times as fast as the normal reproduction speed (step S2102).

Next, it is determined whether the value of the timer tff is 5 seconds or more and less than 10 seconds (step S2103). When the value of the timer tff is 5 seconds or more and less than 10 seconds,
Change the setting of the fast-forward speed to 8 times speed (step S21)
04) If not, the process advances to step S2105 to determine whether or not the value of the timer tff is 10 seconds or more.
If it is determined that the value of the timer tff is 10 seconds or more, the setting of the fast-forward speed is changed to 16 times speed (step S2106), and if not, the process proceeds to step S2107. In this way, the setting of the fast-forward speed is changed according to the time from the start of the fast-forward process.

Next, it is determined whether or not the file has been fast-forwarded to the end of the current file (step S2107). If the fast forward has not been performed to the end of the current file, it is determined whether or not the fast forward button 207 is kept ON (step S2108). If it is determined that the switch is not turned on, the fast-forwarding is terminated (step S2109), the output of the reproduced sound is restarted from the fast-forwarded position, the timer tff is stopped (step S2110), and the process returns to the original. If the switch has been kept ON, the process returns to step S2103.

If it is determined in step S2107 that the file has been fast forwarded to the end of the current file,
It is determined whether the current file is the last file (step S2111). If it is determined that the file is the final file, a warning sound indicating that the file is the final file is output from the speaker 213 (step S2112), and the current position information of the file is moved to the head position of the earliest file. (Step S2113), the fast-forward operation ends (Step S2114), the timer tff is stopped (Step S2115), and the flow shifts to the P / S processing.

If it is determined in step S2111 that the file is not the last file, the current position information of the file is moved to the head position of the file in the next order (step S2116), and the fast-forward operation is temporarily stopped (step S2116). Step S2117). Then, the fast-forward button 207 is further
It is determined whether or not N is continued (step S21)
18). When the ON state of the fast-forward button is released in less than one second, the fast-forward operation ends and the operation returns to the original state.

If it is determined that the fast-forward button has been kept ON for more than one second, the pause is released, and the fast-forward is resumed from the beginning of the next file at the speed before the pause ( Step S2119), returning to step 2103,
The above operation is repeated.

FIG. 24 is a flowchart showing the REW process for performing the fast-return operation process. In the fast reverse processing in the player mode, the RE in the recorder mode is used.
Unlike the case of the V processing, during the fast reverse, the current position information of the file is moved, but no sound is reproduced.

First, a timer trw for measuring the time from the start of the fast-return process is started (step S).
2201) When the reproduction is being performed, the output of the reproduction sound is temporarily stopped, and the fast-return of the current position information of the file is started at a speed four times faster than the normal reproduction speed (step S2202).

Next, it is determined whether or not the value of the timer trw is 5 seconds or more and less than 10 seconds (step S2203). When the value of the timer trw is 5 seconds or more and less than 10 seconds,
The setting of the fast reverse speed is changed to 8 times speed (step S22).
04) Otherwise, the process advances to step S2205 to determine whether or not the value of the timer trw is equal to or longer than 10 seconds.
If it is determined that the value of the timer trw is equal to or longer than 10 seconds, the fast-return speed setting is changed to 16-times speed (step S2206). Otherwise, the process proceeds to step S2207. In this way, the setting of the fast-return speed is changed according to the time from the start of the fast-return process.

Next, it is determined whether or not the file has been returned to the beginning of the current file (step S2207). If the fast-rewind button 206 has not been fast-returned to the leading end of the current file, it is determined whether the fast-return button 206 is kept ON (step S2208). If it is determined that the switch is not turned on, the fast-rewind operation is terminated, and the output of the paused playback sound is resumed from the fast-rewind position (step S220).
9) and stop the timer trw (step S221)
0), return to the original. If the switch has been kept ON, the process returns to step S2203.

If it is determined in step S2207 that the current file has been returned to the beginning,
It is determined whether the current file is the earliest file (step S2211). If it is determined that the file is the earliest file, a warning sound indicating that the file is the earliest file is output from the speaker 213 (step S2212), and the ON state of the fast-return button 206 is released. Wait (step S2213). And O of the quick return button
When the N state is released, the quick return operation ends (step S2).
214), and stop the timer trw (step S211).
5) The process proceeds to the P / PLAY process, and the reproduction is started from the position where the fast-return operation has been completed.

If it is determined in step S2211 that the file is not the earliest file, the rewind operation is temporarily stopped (step S2216). Then, it is determined whether or not the fast-return button 206 is kept ON for one second (step S2217). O of fast-return button 206 in less than 1 second
When the N state is released, the above-described step S211 is performed.
Then, the process returns to 4 and the quick return operation ends.

If it is determined that the fast-forward button has been kept ON for more than one second, the current position information of the file is moved to the end of the previous file (step S22).
18), the pause is released, and the rewinding is resumed from the end position of the previous file at the speed before the pause (step S2).
219), the process returns to step 2203, and the above operation is repeated.

FIG. 25 is a flowchart showing P / MENU processing for performing menu setting processing when the operation mode is the player mode. Here, various parameters used in the player mode can be set.

First, a setting item is selected (step S
2301). To select a setting item, move the desired setting item with the fast forward button 207 and the fast rewind button 206, and
02, and is confirmed by turning on the reproduction button 205. When the user wants to cancel the setting, the stop button 204
Turn ON. Next, it is determined what the determined setting item is (step S2302), and the process shifts to steps S2303 to S2310 described below accordingly. In addition,
When the stop button 204 is turned on at the time of setting item selection,
The process directly proceeds to step S2311.

In the player mode special effect setting, a special effect at the time of music reproduction is set (step S2303).
In the present audio recording / reproducing apparatus, two special effects, a surround effect and a bass enhancement effect, can be set when music is reproduced in the player mode. The strength level is 0 to
5 can be specified in six steps, and the setting is performed.

In the equalizer setting, an equalizer setting (frequency characteristic setting) for music reproduction is performed (step S230).
4). In the player mode of the present audio recording / reproducing apparatus, several frequency characteristic patterns such as normal, pop, jazz, classical, and user-defined are prepared in advance in accordance with music to be reproduced, and these are selected.

In the write-protection setting, write-protection setting is performed for each file (step S2305). When the write-protection is set, the file cannot be rewritten such as erasing the file and rewriting the attribute information of the file.

Alarm setting (step S2306), B
The EEP sound setting (step S2307), the time setting (step S2309), and the format setting (step S2310) are the same as those in the R / MENU processing in the recorder mode, and thus the description is omitted.

In the external SP setting, a device for outputting a sound is selected (step S2308). In the present audio recording / reproducing apparatus, it is possible to output a sound signal by inserting a plug into the headphone jack 212. At this time, the plug is inserted into a headphone,
Or it may be an external speaker. Naturally, the output characteristics of reproduction differ between these. Therefore, even if the same effect such as surround is used, it is more effective to change the frequency characteristics of the output signal in accordance with the connected devices, and this is a setting for that. For setting, two parameters of “external speaker” and “headphone” can be set. When using the built-in speaker, it is only necessary to detect that the plug is not plugged into the headphone jack 212 at the time of reproduction, and in that case, the setting is automatically switched to the output characteristic of the built-in speaker. It has become. For example, the surround effect is not so significant because the speaker 213 is monaural, so OF
For example, F can be set, or bass can be enhanced because the speaker itself is small.

As described above, in the P / MENU processing, only the items related to the player mode are set, and the items used only in the player mode are not set.

FIG. 26 is a flowchart showing a process when the operation mode is set to the player mode and the memory card 117 is not loaded.

First, it is determined whether or not the menu button 210 has been turned on (step S2401). Menu button 21
If 0 is turned on, the above-described P / MENU processing is executed (step S2402). However, memory card 1
Since No. 17 is not mounted, write-protection setting (step S2305) and format setting (step S2310) are set item selection (step S2301).
So that it cannot be selected. For example, an item that cannot be set may not be displayed on the main display unit 202 even if the fast forward button 207 or the fast reverse button 206 is operated, or may not be determined even if the play button 205 is pressed.

If the menu button 210 has not been turned on, it is determined whether or not the memory card 117 has been loaded (step S2403). If the memory card 117 is loaded, it is checked whether the memory card 117 can be used (step S2404). If the memory card 117 is in a usable state, the process proceeds to a P / S process.

Steps S2405 to S241
The processing up to 1 and the processing from step S2412 to step S2414 are the same as the processing from step S1805 to step S1811 and processing from step S1814 to step S1816 in the R / NC processing, and a description thereof will be omitted.

According to the embodiment described above, it is possible to provide an audio recording / reproducing apparatus having good audio data searchability. At the same time, it is possible to obtain a reproduction sound that is easy to hear while reducing the load on the CPU, and it is possible to prevent an increase in necessary internal memory.

As will be understood from the above detailed description, the CPU 116 according to the first mode of the present embodiment comprises a search means for fast-forwarding or fast-returning audio data, and a reproducing means for reproducing audio data. And a function as control means for controlling (ON, OFF control) the reproduction of the audio data at the time of the fast-forward or fast-reverse operation in accordance with the encoding method of the audio data.

The CPU 1 according to the second embodiment of the present embodiment
A search 16 for fast-forwarding or rewinding audio data in an audio recording / reproducing apparatus having a player mode which is an operation mode dedicated to audio data reproduction and a recorder mode which is an operation mode capable of recording and reproducing audio data. Means, a reproducing means for reproducing the audio data, and a function as a control means for controlling the reproduction at the time of fast-forward or fast-return (ON / OFF control) in accordance with the operation mode.

[0242]

According to the present invention, it is possible to provide a voice recording / reproducing apparatus having good voice data searchability.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an audio recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram of the external appearance of the audio recording / reproducing device of the present embodiment viewed obliquely from the front.

FIG. 3 is a diagram of the external appearance of the audio recording / reproducing device of the present embodiment viewed obliquely from behind.

FIG. 4 is a diagram showing the contents of data recorded on a memory card 117;

FIG. 5 is a diagram showing a main flowchart of the present audio recording / reproducing apparatus.

FIG. 6 is a flowchart showing a process when the operation mode is set to the recorder mode and the memory card 117 is loaded.

FIG. 7 is a flowchart illustrating REC processing.

FIG. 8 is a diagram showing a flowchart of a RECPAUSE process.

FIG. 9 shows R / P which is a reproduction process in the recorder mode.
It is a flowchart figure (the 1) of LAY processing.

FIG. 10 shows R / R as playback processing in the recorder mode.
It is a flowchart figure (2) of PLAY processing.

FIG. 11 is a flowchart (part 1) of an R / PLAYPAUSE process which is a playback pause process in the recorder mode.

FIG. 12 is a flowchart (part 2) of an R / PLAYPAUSE process which is a playback pause process in the recorder mode.

FIG. 13 is a flowchart of a CUE process which is a fast-forward playback process.

FIG. 14 is a flowchart of a REV process that is a fast reverse playback process.

FIG. 15 is a flowchart of an ERASE process which is a file erasing process.

FIG. 16 is a flowchart of a move process which is a process of moving a file.

FIG. 17 is a flowchart of an R / MENU process as a menu setting process in the recorder mode.

FIG. 18 is a flowchart of a switch switching process.

FIG. 19 is a flowchart of a main switch OFF process showing a process when the main switch 226 is turned off.

FIG. 20 is a flowchart showing a process when the operation mode is set to the recorder mode and the memory card 117 is not loaded.

FIG. 21 is a flowchart showing processing when the operation mode is set to the player mode and the memory card 117 is loaded.

FIG. 22 is a flowchart showing P / PLAY processing for performing reproduction processing when the operation mode is the player mode.

FIG. 23 is a flowchart illustrating FF processing for performing fast-forward operation processing.

FIG. 24 is a flowchart showing a REW process for performing a quick return operation process.

FIG. 25 is a flowchart showing P / MENU processing for performing menu setting processing when the operation mode is the player mode.

FIG. 26 is a flowchart showing a process when the operation mode is set to the player mode and the memory card 117 is not loaded.

[Explanation of symbols]

 101 microphone 102 microphone jack 103 changeover switch 104 preamplifier 105 stereo codec 105a input amplifier 105b A / D converter R 105c A / D converter L 105d digital filter 105e D / A converter R 105f D / A converter L 105g output amplifier R 105h output amplifier L 106 Output changeover switch 107 Output changeover switch 108 Headphone amplifier R 109 Headphone amplifier L 110 Speaker amplifier 111 Headphone terminal R 112 Headphone terminal L 113 Speaker 114 Digital signal processing unit (DSP) 115 Bidirectional bus transceiver IC 116 CPU 117 Memory card 118 Display drive circuit 119 Display unit 120 Operation switch group 121 Power supply circuit 122 Built-in memory 12 Communication driver 124 External connection terminal 201 Main body 202 Main display section 203 Record button 204 Stop button 205 Play button 206 Fast return button 207 Fast forward button 208 Delete button 209 Index button 210 Menu button 211 Folder button 212 Headphone jack 213 Speaker 214 Microphone jack 215 Microphone 216 Indicator 217 Volume knob 218 Recording medium slot 219 Operation mode switch 220 Microphone sensitivity switch 221 Hold switch 222 Power jack 223 Eject knob 224 Battery cover 225 External connection terminal 226 Main switch

Claims (7)

[Claims] 1. Search means for fast-forwarding or fast-returning audio data, playback means for playing back audio data, and playback of audio data at the time of fast-forwarding or fast-returning according to the encoding method of the audio data. And a control means for controlling the sound recording and reproducing apparatus. 2. The apparatus according to claim 1, wherein the control means controls whether or not to reproduce the audio data at the time of the fast-forward or fast-reverse operation according to the encoding method of the audio data. Audio recording and playback device. 3. The audio recording apparatus according to claim 1, wherein said control means changes a reproduction method of the audio data at the time of fast-forward or fast-rewind according to an encoding method of the audio data. Playback device. 4. An audio recording / reproducing apparatus having a player mode, which is an operation mode exclusively for reproducing audio data, and a recorder mode, which is an operation mode capable of recording and reproducing audio data, performs fast forward or fast reverse of audio data. An audio recording / reproducing apparatus comprising: a search unit for performing; a reproducing unit for reproducing audio data; and a control unit for controlling reproduction at the time of fast forward or fast reverse according to the operation mode. 5. The audio recording / reproducing apparatus according to claim 4, wherein the control means controls whether or not to reproduce the audio data at the time of the fast forward or the fast rewind according to the operation mode. apparatus. 6. The audio recording / reproducing apparatus according to claim 5, wherein said control means controls to reproduce audio data at the time of fast forward or fast reverse in said recorder mode. 7. The audio recording / reproducing apparatus according to claim 4, wherein the control means changes a method of reproducing the audio data at the time of the fast forward or the fast rewind according to the operation mode.