JP2002278595A - Sound-reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound-reproducing device which can surely reproduce sound data which have been set to be reproduced automatically. SOLUTION: The sound-reproducing device is provided with a first operation mode, in which reproduction of a sound file encoded by a first encoding system can be reproduced, and a second operation mode in which a sound file encoded by a second encoding system can be reproduced. A CPU 116 controls the device so that the selected sound file is reproduced, in the case the operation mode when the previously set time comes is the mode, in which the selected sound file can be reproduced; and in the case the operation mode is not the mode in which the selected sound file can be reproduced, the selected sound file is reproduced after the operation mode is changed into the operation mode, corresponding to the selected sound file.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound reproducing apparatus having a function of automatically reproducing sound at an arbitrary set time.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. H11-6560.
As disclosed in Japanese Patent Publication No. 0, there is proposed a device that emits a beep at a time set by an operator and then automatically reproduces audio data specified in advance.

On the other hand, an operation mode includes a reproduction-only mode (player mode) for music data and the like, and a recording / reproduction mode for recording audio data in an internal memory using a built-in microphone and reproducing the same. Voice memo mode,
Or a recorder mode). In such an audio reproducing apparatus, audio data that can be handled in the reproduction only mode can be generally handled only in the reproduction only mode, and audio data that can be handled in the recording / reproducing mode can be handled only in the recording mode.

[0004]

In order to add the above-mentioned audio data automatic reproduction function to the above-mentioned audio reproduction apparatus, for example, audio data in a reproduction only mode is designated as an object of automatic reproduction. When the set time has arrived and the operation mode has been set to the recording / playback mode, the audio data to be automatically reproduced cannot be reproduced.

The present invention has been made in view of the above circumstances, and has as its object to provide an audio reproducing apparatus capable of reliably reproducing audio data set as an automatic reproduction target.

[0006]

To achieve the above object, a first aspect of the present invention provides a first operation mode capable of reproducing an audio file encoded by a first encoding system, and a second operation mode. A time setting means for setting an arbitrary set time, and a selecting means for selecting an arbitrary audio file, in the audio reproducing apparatus having a second operation mode capable of reproducing an audio file encoded by the encoding method of A reproducing means for reproducing the audio file; and, when the set time is reached, when the operation mode is an operation mode capable of reproducing the selected audio file, the reproduction of the selected audio file is performed. If there is no operation mode in which the selected audio file can be reproduced, the operation mode is changed to the operation mode corresponding to the selected audio file, and then the selected audio file is reproduced. And a control means for controlling to play the voice file.

According to a second aspect of the present invention, there is provided the audio reproducing apparatus according to the first aspect, further comprising an alarm sound output means for outputting an alarm sound, wherein the control means is adapted to operate when the set time comes. An alarm sound is output, and thereafter, after a predetermined operation button of the audio reproducing apparatus is operated, control is performed so that the selected audio file is reproduced.

According to a third aspect of the present invention, in the audio reproducing apparatus according to the first aspect of the present invention, the audio reproducing apparatus further comprises:
When the operation mode is changed, an operation mode return unit for returning the operation mode to the original after the reproduction of the selected audio file is completed is provided.

According to a fourth aspect of the present invention, in the audio reproducing apparatus according to the first aspect, after the reproduction of the selected audio file is completed, the state of the operation mode setting means is determined to determine the state of the operation mode setting means. An operation mode shift unit for shifting to an operation mode according to the setting is provided.

According to a fifth aspect of the present invention, a first audio file operable only in the first operation mode and a second audio file operable only in the second operation mode are recorded. In an audio playback device capable of
Time setting means for setting an arbitrary set time, selecting means for selecting an arbitrary audio file, reproducing means for reproducing the audio file, and when the set time comes, the operation mode is set to the selected audio file. If the operation mode is an operation mode corresponding to the above, the selected audio file is reproduced, and if the operation mode is an unsupported operation mode, the operation mode is changed to an operation mode corresponding to the selected audio file. Control means for reproducing the selected audio file.

According to a sixth aspect, in the audio reproducing apparatus according to the fifth aspect, the first operation mode is a reproduction-only mode for the first audio file, and the second operation mode is This is a mode in which the second audio file can be recorded.

According to a seventh aspect of the present invention, in the audio reproducing apparatus according to the fifth aspect, the control device further comprises:
When the operation mode is changed, an operation mode return unit for returning the operation mode to the original after the reproduction of the selected audio file is completed is provided.

According to an eighth aspect of the present invention, in the audio reproducing apparatus according to the fifth aspect, after the reproduction of the selected audio file is completed, the state of the operation mode setting means is determined, and An operation mode shift unit for shifting to an operation mode according to the setting is provided.

[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 according to the present embodiment includes Windows Media (registered trademark) system of Microsoft Corporation (registered trademark) (hereinafter referred to as WMA system, and its encoded data file is referred to as WMA file), and Motion. Picture
Experts Group-1 It is assumed that three decodings of the Audio Layer 3 method (hereinafter, referred to as MP3 method, and the encoded data file is referred to as MP3 file) and the DSS method can be performed. The decoded digital audio signal is transferred to the stereo codec 105.

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 each 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, a headphone terminal R111 and a headphone terminal L11 are output as output destinations.
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 CPU 116 is connected to several circuits in addition to those described above. Display unit 11
Reference numeral 9 denotes a two-color LED and a liquid crystal display having a backlight, and indicates an operation state and the like of the audio recording and reproducing apparatus. The display drive circuit 118 drives the display unit 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 set time of the alarm reproduction in the alarm reproduction, information for specifying the alarm reproduction target file, and the like are also stored here.

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 a 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. The method will be used. In the player mode, it is assumed that the user mainly listens to music, and the WMA system capable of reproducing with high sound quality,
And MP3 encoding.

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 voice. 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 these operations when the apparatus is performing operations 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.

The 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 reverse 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 types of frequency characteristics suitable for the music to be reproduced are set in advance (this audio recording / reproducing apparatus includes normal, pop, jazz, classical,
These buttons are used to select a desired frequency characteristic from among them 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 used. Repeatedly play all the encoded files handled in step (all-track repeat playback mode), repeat randomly the encoded files handled in player mode (random repeat playback mode), and play the encoded files handled in player mode once at random 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 slot 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 operation mode switch 219 is a slide switch, and is configured to switch the operation mode according to the position. For example, the operation mode switch 219 may be a push button switch so that the operation mode changes cyclically each time a button is pressed. Thus, the operation mode may be held in the internal memory 122 or the like.

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 route 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 encoded 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, in addition to the above-mentioned files, a folder name data file 49 and a recovery data file 50 are recorded. 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 recording and playback in the recorder mode is stored in the R
It is stored in the OM.

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 starts, 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 so, a recording process for encoding the input audio signal and recording it on the memory card 117 (step S60)
Perform 2).

If the recording button 203 has not been turned on, the flow advances to step S603 to determine whether or not the reproduction button 205 has been turned on. When the reproduction button 205 is turned on, a reproduction process (step S604) is performed.

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 file number one by one and moving the file to be reproduced or edited is performed.

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, an operation of moving a file to be reproduced or edited by decrementing the file number by one.

If the fast-return button 206 has not been turned on, the flow advances to step S609 to turn on the folder button 211.
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 seconds 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 button 10 is turned on, the recorder menu setting process (step S6) for performing various settings relating to the recorder mode.
Perform 14). The setting of the alarm reproduction is performed in the recorder menu setting process and the player menu setting process described later.

At the start of the recorder menu setting process, the item to be set is selected by using the fast forward button 207 and the fast rewind button 206, and confirmed by using the play button 205. Then, when the alarm setting is selected, first, ON / OFF setting of the alarm is performed using the fast forward button 207 and the fast return button 206 again. Next, when ON is set, an alarm time at which an alarm is sounded is set. When the setting is ON, the alarm is output for 10 minutes at the time when the alarm is set. If any button is operated during that time, the current file at the time when the recorder menu setting process is started is reproduced.

By the way, if it is not desired to reproduce the file after the alarm sounds, remove the memory card 117 to start the recorder menu setting process, or remove the memory card 117 at the time of the alarm, or What is necessary is just to designate a file in which nothing is recorded as a file for alarm reproduction.

In step S613, the menu button 21
If 0 has not been turned on, the process advances to step S615 to determine whether or not the delete button 208 has been turned on.
If the delete button 208 has been turned on, the DSS file specified in the DSS file in the memory card 117 is specified.
An erasing process for erasing a file (step S616) is executed.

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).
Specifically, the free space of the memory card 117 is detected,
The CPU 116 calculates a recordable time indicating how long a record can be made in the currently set recording mode, and displays it on the main display unit 202 only while the stop button 204 is ON.

If the stop button 204 has not been turned on, the flow advances to step S619 to determine whether or not the alarm playback time has arrived. If it is determined that the alarm playback time has arrived, the alarm playback described later will be performed (step S620). Alarm playback means that an alarm sounds when a preset alarm playback time comes, an alarm is released if any button is operated during that time, and then a preset encoded data file is automatically played back. That is the function.

If it is determined that the alarm playback time has not arrived, the flow advances to step S621 to determine whether or not the 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 it is not connected to a personal computer, the flow advances to step S623 to execute a switch switching process. Specifically, in this switch switching process, a process corresponding to the switching of the operation mode switch 219 is performed. If it is detected that the operation mode switch has been switched, an R / NC process (step S701) and a P / S process (to be described later) and a P / S process (step S701) are performed according to the state of the switched operation mode switch and the presence or absence of the memory card 117. The process proceeds to step S801) or P / NC (step S901). If switching of the operation mode switch 219 has not been detected, the process returns to step S601, and the above processing is repeated.

FIG. 7 is a flowchart 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 S701). Menu button 210
Is turned on, the above-described recorder menu setting processing is executed. However, since the memory card 117 is not mounted, the write protection setting, the folder name setting, the format processing of the memory card 117, and the like cannot be selected in the setting item selection. 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 is not turned on, it is determined whether or not the memory card 117 is loaded.
(Step S703). If the memory card 117 has been loaded, it is checked whether the memory card 117 can be used (step S704). If the memory card 117 can be used, the process proceeds to the R / S processing.

The memory card 117 is normally formatted.
If it is determined that the memory card 117 is not in a usable state because it has not been (initialized) or not, the operator is asked to select whether to format the memory card 117 (step S705). If formatting is selected, the memory card 117 is formatted (step S706), and the process returns to step S704.

If it is selected not to perform formatting, the operation mode of the CPU 116 is shifted to the power saving mode (step S707), the display is turned off, and the operation waits until any operation button is turned on (step S707).
708). Then, when any operation button is turned on, the operation mode of the CPU 116 is shifted to the normal mode,
It returns to step S705. 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.

If it is determined in step S703 that the memory card 117 has not been loaded, it is determined whether or not an alarm time has arrived (step S710). When the alarm time has arrived, the memory card 117 is not loaded, and there is no audio file to be reproduced. Therefore, 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 S711).

If it is determined that the alarm time has not arrived, it is determined whether or not the personal computer as an external device is connected (step S712). If it is determined that the personal computer is connected to the personal computer, the mode is shifted to the communication mode, and the personal computer controls the operation (step S713).

When it is determined that the memory card 117 is not connected to the personal computer, the predetermined operation button (recording button 20) which does not make any sense to be turned on when the memory card 117 is not loaded.
3. It is determined whether or not the playback button 205, the erase button 208, etc.) have been turned on (step S714). If the button has been turned on, a warning sound is output from the speaker 213 (step S71).
5).

If it is determined that the predetermined button has not been turned ON, the above-described switch switching processing (step S716) is executed. Specifically, in this switch switching process, a process corresponding to the switching of the operation mode switch 219 is performed. If it is detected that the operation mode switch has been switched, the above-described R / S processing (step S601) or P / P described later is performed according to the state of the switched operation mode switch and the presence or absence of the memory card 117. S processing (step S8
01), and proceeds to P / NC (step S901) processing. If switching of the operation mode switch 219 has not been detected, the process returns to step S701.

FIG. 8 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 S801). 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 notify the operator that recording is not possible (step S8).
02).

If the recording button 203 has not been turned on, the flow advances to step S803 to determine whether or not the reproduction button 205 has been turned on. When the play button 205 is turned on, normal file playback processing is performed.

If the reproduction button 205 has not been turned on, the flow advances to step S805 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 file number one by one and moving the file to be reproduced or edited is performed (step S806). ).

If the fast-forward button 207 has not been turned on, the flow advances to step S807 to determine whether or not 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, an operation of decrementing the file number by one and moving the file to be reproduced or edited is performed (step S808). ).

In addition, F. SKIP and R.A. When the SKIP operation is performed, the file name of the moved 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 S809, and the folder button 211 has been turned on.
It is determined whether or not it has been performed. The folder button 211 functions as a repeat mode switching button in the player mode.
Therefore, when the folder button 211 is turned on, the repeat mode is switched to the normal playback mode,
The one-track repeat playback mode, the all-track repeat playback mode, the random playback repeat mode, the random playback mode, and the normal playback mode are cyclically switched in this order (step S810).

If the folder button 211 has not been turned on, the flow advances to step S811, and the index button 209 is
It is determined whether or not N is set. Index button 209
Functions as an equalizer (frequency characteristic) switching button in the player mode. Accordingly, the equalizer mode is cyclically switched in the order of normal, pop, jazz, classic, user-defined, and normal each time the switch is turned on once (step S812).

If the index button 209 has not been turned on, the flow advances to step S813, and the menu button 210 is
It is determined whether or not N is set. Menu button 210 is O
If N, a player menu setting process (step S814) for performing various settings relating to the player mode is executed. Note that the alarm playback can be set here, but the setting method is the same as that in the recorder menu setting process, and thus the description is omitted here.

If the menu button 210 has not been turned on, the flow advances to step S815 to determine whether or not the delete button 208 has been turned on. If the delete button 208 has been turned on, the process of deleting the specified file from among the files reproducible in the player mode in the memory 117 is executed (step S816), and the desired file is deleted.

If the erase button 208 has not been turned on, the flow advances to step S817 to determine whether the stop button 204 has been turned on. When the stop button 204 is turned on, a property display is performed (step S818). Specifically, the encoding algorithm and bit rate of the current file are displayed on the main display unit 202 only while the stop button 204 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 S819 to determine whether or not the alarm reproduction time has arrived. If it is determined that the alarm reproduction time has arrived, an alarm reproduction process described in detail later is performed (step S820).

If it is determined that the alarm playback time has not arrived, the flow advances to step S821 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 S8).
22).

If it is determined that the personal computer is not connected to the personal computer, the flow advances to step S823 to execute the switch switching process in the same manner as described above, and then returns to step S801.

FIG. 9 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 S901). If the menu button 210 has been turned ON, the above-described player menu setting processing is executed (step S902). However, since the memory card 117 is not loaded, settings relating to the memory card 117, for example, write-protection settings, memory card format, and the like cannot be selected by setting item selection. 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 is not turned on, it is determined whether or not the memory card 117 is loaded.
(Step S903). If the memory card 117 has been loaded, it is checked whether the memory card 117 can be used (step S904). If the memory card 117 can be used, the process proceeds to the P / S process.

Steps S905 to S911 and steps S912 to S91
The processing up to 4 is performed in step S7 in the R / NC processing.
Since the processing is the same as that of steps S05 to S711 and steps S714 to S716, the description is omitted.

FIG. 10 is a flowchart showing the alarm reproduction process. During the R / S processing shown in FIG.
When the alarm playback time arrives during the P / S processing shown in (1), this alarm playback processing is executed.

First, an alarm sound is output from the speaker 213 (step S1001). Then, it is determined whether a predetermined time has elapsed since the start of the alarm reproduction process (step S1002). Incidentally, in the case of the present embodiment, the predetermined time is set to 10 minutes, but the present invention is not limited to this, and may be determined according to various circumstances.

If it is determined that the predetermined time has not elapsed, it is determined whether a predetermined operation button has been turned on (step S1003). Here, the predetermined operation buttons include an operation button provided on the front of the main body 201 such as a recording button 203 and a stop button 204, and an operation button provided on a side surface of the main body 201 on which the playback button 205 is arranged. It is. However, in consideration of various circumstances, for example, only the operation buttons arranged on the front of the main body 201 may be set as the predetermined buttons, and conversely, only the operation buttons arranged on one side of the main body 201 may be set as the predetermined buttons. Alternatively, only a specific button among these may be set as the predetermined button.

If it is determined that the predetermined operation button has not been turned on, the process returns to step S1002, and the above-described processing is repeated until the predetermined time has elapsed or the predetermined operation button has been turned on. If it is determined that the predetermined time has elapsed, the output of the alarm sound is stopped (step S10).
04) Return to the original routine.

If the predetermined operation button is turned on, the output of the alarm sound is stopped (step S1005), and it is determined whether or not there is an alarm reproduction target file (step S1006). If the memory card 117 has been removed from the main body or the target file has been deleted, and there is no alarm reproduction target file, a warning is given that there is no such file. When a predetermined time has elapsed or a predetermined operation button has been pressed, the warning operation is stopped (step S100).
7) Return to the original routine.

If it is determined that there is an alarm playback target file, it is determined whether or not the operation mode is the operation mode for playing back the file (step S10).
08). For example, if the MP3 file is set in the alarm playback target file and the current operation mode is the recorder mode, or the DSS file is set in the alarm playback target file and the current operation mode is the player mode. If it is determined that the operation mode is not the operation mode corresponding to the alarm reproduction target file, the operation mode is switched to the operation mode corresponding to the file (step S1009). Then, after the operation mode corresponding to the alarm reproduction target file is set, reproduction of the alarm reproduction target file is started (step S101).
0).

While the file for alarm reproduction is being reproduced, it is determined whether or not a predetermined operation button is turned on (step S1011). If the predetermined operation button has not been turned on, it is determined whether or not reproduction has been performed up to the end of the file (step S1012). The above steps are repeated until one of the determinations in step S1011 and step S1012 becomes YES.
When it becomes, the reproduction of the file is stopped (step S1013).

Next, the operation mode is changed to the above-mentioned step S100.
If it has been changed in the process of No. 9, the operation mode is returned to the original (step S1014). Then, the current position information of the file is moved to the head position of the current file before the alarm reproduction processing is performed (step S1015), the present alarm reproduction processing ends, and the process returns to the original processing routine.

Although the operation mode is returned to the original state in step S1014, when the operation mode switch 219 is a slide switch as in the present embodiment, the operation mode switch is switched during the alarm reproduction. It is possible that Therefore, step S1
Until the process of step 014, the operation mode is not restored, and the state of the operation mode switch 219 is detected again when the alarm reproduction is completed, whereby the operation mode is set. good. In this case, the current position information of the file may be moved to the head of the earliest file in the switched operation mode, or may be moved to the head of the file on which the alarm playback has been performed.

FIG. 11 is a diagram for explaining a display screen D01 on the main display unit 202 during the alarm reproduction. D02 is a battery remaining amount display.

D03 is an alarm reproduction setting display, which lights when alarm reproduction is set. D04 is a mode / folder display indicating the current operation mode or the current folder. The figure shows a display indicating that the player mode is set. If you are in recorder mode,
The current folder “A”, “B” or “C” is displayed. D05 is a file number display of the current file. D06 is a file name display of the current file, and D07 is a counter display of the current position.

While the above-mentioned display is lit during normal reproduction or stop at step S604 or S1004, etc., during alarm reproduction, the display of D03 blinks to distinguish it from normal reproduction. Display.

FIG. 12 shows the main display unit 20 at the time of the warning operation in step S1007 during the above-mentioned alarm reproduction processing.
FIG. If the alarm playback target file cannot be accessed when the alarm playback time arrives, this display is made.

The display D04 and the display D05 inform the operator of the alarm reproduction target file. Then, a display D08 of "NO FILE!" Indicating that there is no file in the portion where the normal file name is displayed is displayed. Then, by blinking the entire screen display for a predetermined time, the operator is more strongly notified that there is no file.

As will be understood from the above detailed description,
If the operation mode is an operation mode in which the selected audio file can be reproduced at an arbitrary set time set in advance in the first mode of the present embodiment, If the selected audio file is not in the operation mode in which the selected audio file can be reproduced, the operation mode is changed to the operation mode corresponding to the selected audio file, and then the selected audio file is reproduced. It has a function as control means for controlling to reproduce the audio file. By providing such a function, it is possible to reliably reproduce the audio data set as the automatic reproduction target.

Further, the CPU 116 according to the second embodiment includes
In the aspect, has a function as an alarm sound output means for outputting an alarm sound, and outputs an alarm sound when the preset time comes, after that, after a predetermined operation button is operated, Control is performed to reproduce the selected audio file.

Further, the CPU 116 according to the third embodiment includes the first
In the embodiment, when the operation mode is changed,
It has a function as an operation mode return means for returning the operation mode to the original after the reproduction of the selected audio file is completed.

Further, the CPU 116 of the fourth embodiment is provided with
In the aspect, after the reproduction of the selected audio file is completed, a function is provided as operation mode transition means for judging a state of the operation mode switch 219 as operation mode setting means and shifting to an operation mode according to the setting. I have.

Further, the CPU 116 according to the fifth embodiment is configured to
In a sound reproducing apparatus capable of recording a first sound file operable only in the second operation mode and a second sound file operable only in the second operation mode, an arbitrary set time When the operation mode is the operation mode corresponding to the selected audio file, the selected audio file is reproduced, and when the operation mode is the non-compatible operation mode, the operation mode is selected. After the operation mode is changed to the operation mode corresponding to the selected audio file, a function as control means for reproducing the selected audio file is provided. By providing such a function, it is possible to reliably reproduce the audio data set as the automatic reproduction target.

Further, the CPU 116 of the sixth mode is the same as the fifth embodiment.
In the aspect, the first operation mode is a reproduction-only mode for the first audio file, and the second operation mode is a mode capable of recording and recording the second audio file.

Further, the CPU 116 according to the seventh aspect is configured to
And a function as an operation mode return means for returning the operation mode to the original state after the reproduction of the selected audio file is completed when the operation mode is changed by the control means. .

The CPU 116 according to the eighth aspect is provided with
And a function as an operation mode transition unit for judging a state of the operation mode setting unit and shifting to an operation mode according to the setting of the operation mode setting unit after the reproduction of the selected audio file is completed. ing.

[0144]

According to the present invention, there is provided an audio reproducing apparatus capable of reliably reproducing audio data set as an object of automatic reproduction.

[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 a process when the operation mode is set to the recorder mode and the memory card 117 is not loaded.

FIG. 8 is a flowchart showing a process when the operation mode is set to the player mode and the memory card 117 is loaded.

FIG. 9 is a flowchart showing processing when the operation mode is set to the player mode and the memory card 117 is not loaded.

FIG. 10 is a flowchart showing an alarm reproduction process.

FIG. 11 is a diagram illustrating a display screen D01 on the main display unit 202 during alarm playback.

FIG. 12 is a step S10 during an alarm reproduction process.
It is a figure which shows the main display part 202 at the time of the warning operation of 07.

[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 (8)

[Claims] 1. A first operation mode in which an audio file encoded by a first encoding method can be reproduced, and a second operation mode in which an audio file encoded by a second encoding method can be reproduced. A time setting unit for setting an arbitrary set time, a selecting unit for selecting an arbitrary audio file, a reproducing unit for reproducing an audio file, and when the set time is reached, When the operation mode is an operation mode in which the selected audio file can be reproduced, the selected audio file is reproduced, and the operation mode is not an operation mode in which the selected audio file can be reproduced. And control means for controlling the reproduction of the selected audio file after changing the operation mode to the operation mode corresponding to the selected audio file. Audio reproduction device, characterized in that. 2. An alarm sound output means for outputting an alarm sound, wherein the control means outputs an alarm sound when the set time comes, and thereafter, a predetermined operation button of the sound reproducing apparatus is provided. 2. The audio reproducing apparatus according to claim 1, wherein after the user operates, the selected audio file is controlled to be reproduced. 3. An operation mode return means for returning the operation mode to the original mode after the reproduction of the selected audio file is completed when the operation mode is changed by the control means. The audio reproducing device according to claim 1, wherein 4. An operation mode shifting means for judging a state of the operation mode setting means and shifting to an operation mode according to the setting of the operation mode setting means after the reproduction of the selected audio file is completed. The audio reproducing apparatus according to claim 1, wherein: 5. A sound reproducing device capable of recording a first sound file operable only in a first operation mode and a second sound file operable only in a second operation mode. In the apparatus, time setting means for setting an arbitrary set time, selecting means for selecting an arbitrary audio file, reproducing means for reproducing the audio file, and when the set time has come, the operation mode is selected. If the operation mode corresponds to the selected audio file, the selected audio file is played.If the operation mode is not supported, the operation mode is changed to the operation mode corresponding to the selected audio file. And a control unit for reproducing the selected audio file after performing the operation. 6. The first operation mode is a reproduction-only mode for the first audio file, and the second operation mode is a mode for recording and recording the second audio file. The audio reproducing apparatus according to claim 5, wherein: 7. An operation mode return unit for returning the operation mode to the original mode after the reproduction of the selected audio file is completed when the control unit changes the operation mode. The audio reproducing apparatus according to claim 5, wherein 8. An operation mode shifting means for judging a state of the operation mode setting means and shifting to an operation mode according to the setting of the operation mode setting means after the reproduction of the selected audio file is completed. The audio reproducing device according to claim 5, wherein: