JP2002196793A - Voice recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a voice recording and reproducing device with which erased file can easily be checked. SOLUTION: The voice recording and reproducing device has a recording medium 61 which records the voice file, a management means (a system control part 60) to manage the management information of the display number representing the order of the display, or the order of reproduction to the voice file, a selection means (a lever 17 for up/fast forwarding operation, and down/ fast returning operation) to select the arbitrary display number, an erasing means (an erasing button 22) to erase the voice file corresponding to the selected display number, a voice file rearrangement instruction means (an index button 21 and a hold button 15), and an updating means to update the management information when the voice file rearrangement instruction means is operated (the system control part 60).

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.

[0002]

2. Description of the Related Art An IC recorder as an audio recording / reproducing apparatus has a function of deleting an audio file.
When one audio file is deleted, the numbers of subsequent files are shifted one by one to the front.

[0003]

However, in the IC recorder having the above specifications, when a plurality of files are to be continuously deleted, the numbers of the latter files are shifted and cannot be understood. I get lost. Even when erasing one file, the number of the erased file is re-assigned to the next file in the order.
The file number that should have been deleted will be displayed,
There was a problem that it was difficult to know whether the data was erased reliably.

The present invention has been made in view of such a problem, and an object of the present invention is to provide an audio recording / reproducing apparatus capable of easily confirming a deleted file.

[0005]

To achieve the above object, an audio recording / reproducing apparatus according to a first aspect of the present invention comprises a recording medium for recording an audio file, a display order or a reproduction order for the audio file. Management means for managing the management information of the display number representing the, display means for selecting an arbitrary display number, erasing means for erasing the audio file corresponding to the selected display number, audio file rearrangement instruction means, Updating means for updating the management information when the voice file rearrangement instructing means is operated.

According to a second aspect, in the audio recording and reproducing apparatus according to the first aspect, the updating means shifts a display number corresponding to each audio file by an amount corresponding to the audio files erased by the erasing means. Then, the management information is updated so that the display order or the reproduction order is a serial number from the first audio file to the last audio file.

According to a third aspect, in the audio recording / reproducing apparatus according to the first aspect, the management information is not updated by the updating means after the audio file is erased by the erasing means. Display means for displaying when the display number corresponding to the deleted audio file is selected by the selection means, that the audio file corresponding to the selected display number has been deleted. .

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an external perspective view of an IC recorder to which the audio recording / reproducing apparatus of the present invention is applied. IC
A liquid crystal window 14 is provided at the upper front part of the recorder body, and operation buttons such as a play button 18, a stop button 19, a menu button 20, an index button 21, and an erase button 22 are provided at the front central part. In addition, a speaker sound emission hole 23 is provided in the lower front part.

In addition, a memory card insertion slot 1 is provided on the upper surface of the main body.
1, a microphone 12, and an LED window 13 are provided. A recording button 16, an up / fast-forward, down / fast-return lever 17, and a hold button 15 are provided on the side of the main body.

The above-mentioned up / fast-forward / down / fast-reverse lever 17 is used to select a display number indicating the display order or reproduction order for an audio file.
Also, the index button 21 and the hold button 15 described above are used.
Is used as audio file rearrangement instructing means for giving an instruction to rearrange audio files.

FIG. 2 is a diagram showing a system configuration of the IC recorder of the present embodiment. This IC recorder uses microphone 5
0, an amplifier 51, and a low-pass filter (LPF) 52
, A recording signal input unit including an A / D converter 53, a D / A converter 54, and a low-pass filter (LP
F) 55, an amplifier 56, and a reproduction signal output unit including a speaker 57.

The A / D converter 53 and the D / A converter 54 are system control units for controlling the entire recorder mainly through a digital signal processing unit (DSP) 58 for compressing / decompressing audio signals and information. Unit (CPU) 60. The digital signal processing unit 58 includes an encoding unit that encodes the input digital audio signal into audio data and a decoding unit that decodes the audio data and converts the audio data into a digital audio signal in order to realize the compression / expansion. Function.

The system control unit 60 is connected to operation switches 65 corresponding to the various operation buttons described above, and has a recording medium 61 composed of a rewritable nonvolatile memory such as a built-in flash memory. A RAM 62 for temporarily recording data is connected. The recording medium 61 may be a detachable external recording medium.

The system control unit 60 further includes a driving circuit 5
A display 64 as a liquid crystal display (LCD) for displaying time data, operation status, and the like is connected via the terminal 9.

In the above configuration, when an operation input such as recording, reproduction, or erasing is performed from the outside, the system control unit 6
0 detects it and shifts each unit to the corresponding state.
For example, when a recording operation is performed, the audio signal input from the microphone 50 is amplified by the amplifier 51, and unnecessary low-frequency components are removed by the low-pass filter 52, and then the digital signal is removed by the A / D converter 53. It is converted to an audio signal.

The digital audio signal from the A / D converter 53 is compressed by a digital signal processing unit 58 and then written as digital audio data at a predetermined address of a recording medium 61 under the control of a system control unit 60. Further, the system control unit 60 performs control to write the digital audio data to a predetermined address in the recording medium 61 together with address management information indicating at which address the written digital audio data is written.

On the other hand, when the reproduction operation is performed, the system control unit 60 reads the address information to be reproduced from the designated address of the recording medium 61 and also reads the digital audio data to be reproduced corresponding to the address information. And outputs it to the digital signal processing unit 58. The digital signal processing unit 58 expands the digital audio data to obtain a D / A
Output to the converter 54. The D / A converter 54 converts the digital audio signal from the digital signal processing unit 58 into an analog audio signal. After removing unnecessary high frequency components from the analog audio signal by a low pass filter (LPF) 55,
The signal is amplified by the amplifier 56 and output from the speaker 57.

FIG. 3 is a diagram for explaining the main flow of the IC recorder according to the present embodiment. After the power is turned on, in step S1, after performing initial settings including clearing of the RAM 62, input / output settings of ports, initial settings of a communication system, etc., the apparatus is in a state of waiting for an operation input from a user, and any of the operation buttons described above is set. Watch for the push. If the menu button 20 is pressed, the MUNU of step S2
The determination as to whether the SW is ON is YES and the process proceeds to step S3 to perform a menu (MENU) process. Also,
When the recording button 16 is pressed, the REC of step S4 is performed.
If the determination of whether the SW is ON is YES and the step S
Proceed to 5 to execute a recording (REC) operation. When the play button 18 is pressed, the PLAY S of step S6 is executed.
The determination as to whether or not W is ON is YES, resulting in step S7.
To execute the reproduction (PLAY) operation. When the fast forward operation is performed by the up / fast forward and down / fast reverse levers 17, the determination as to whether the FF SW is ON in step S8 is YES, and the process proceeds to step S9 to execute the fast forward (FF) operation. When the up / fast-forward and down / fast-return levers 17 are used to perform the fast-return operation, the determination in step S10 as to whether REV is ON is YE.
In S, the process proceeds to step S11 to execute a fast return (REV) operation. If the erase button 22 has been pressed, the determination in step S12 as to whether or not the ERASE SW is ON is YES, and the flow advances to step S13 to erase (ERA).
SE) Execute the processing. The details of this erasing process will be described later. If the index button 21 is pressed for 2 seconds, the INDEX SW of step S14 is turned off for 2 seconds.
If the determination is NO, the flow advances to step S15 to rearrange the files. A specific example of the file rearrangement will be described later with reference to FIG.

FIG. 4 shows the erasure (ER) in step S13 of FIG.
It is a flow chart for explaining the details of ASE) processing. First, the file N of the selected audio file
O. And the letters "ERASE" are blinked alternately on the display 64 to display the file No. being displayed. Prompts the user to confirm whether to delete the audio file (step S
20). Next, it is monitored whether or not the stop button 19 is pressed within 10 seconds after the ERASE button is pressed for the first time, or a time-out occurs when 10 seconds elapse without any operation from the user (step S21). While any of the conditions is not satisfied, it is determined in step S22 whether or not the delete button 22 has been pressed. If the delete button 22 has been pressed, a process of deleting the audio file is performed, and the process returns to the main flow of FIG. Return. At this point, the process of rearranging the files is not performed. Therefore, the file number of the deleted file is missing. If the stop button 19 is pressed within 10 seconds in step S21 or a timeout occurs, the process immediately returns to the main flow in FIG.

FIG. 5 shows a state in which the hold button 15 is turned ON and
9 is a flowchart for describing details of processing when an OLD SW is turned on. When the hold button 15 is turned on, this flow is executed by an interrupt process.
First, in step S30, all inputs of the operation buttons are invalidated. In the next step S31, the hold button 15 is turned off.
It is determined whether or not the HOLD SW has been turned off by the F operation. In the case of YES here, the invalidation of the operation button input is canceled in step S33, and the process returns to the main flow of FIG. If the determination in step S31 is NO, the process proceeds to step S32, where it is determined whether the IC recorder is operating. If the determination is YES, the process returns to step S31. In this way, the operation currently being performed is continued until the HOLD SW is turned off or until the operation such as “playback, recording” is completed.

When the operation being performed is completed before the HOLD SW is turned off, or when the HOLD SW is turned on.
If no operation is performed when the file is deleted, it is detected whether or not the file has been deleted. If not, the file is deleted. Further, it is determined whether or not the files have been rearranged (step S34). If not, the files are rearranged (step S35). A specific example of the file rearrangement will be described later with reference to FIG.

If it is determined in step S34 that the files have been rearranged, or after the files have been rearranged in step S35, the process proceeds to step S36, in which the clock frequency of the CPU is reduced to a necessary minimum. Shifts to the low current consumption mode in which only the function of
Wait until the OLD SW is turned off (step S3
7). When the HOLD SW is turned off, the clock frequency of the CPU is returned to its original value, and various operation buttons are accepted to return to the normal operation mode (step S38), and thereafter, the flow returns to the main flow of FIG.

FIG. 6 shows the fast-forward (F) in step S9 in FIG.
F) It is a flowchart for explaining the details of the processing. Here, a description will be given on the assumption that the files are not rearranged after the files are deleted by pressing the delete button 22. When the fast forward operation is performed, first, it is confirmed whether or not the file is the last file (step S40). Whether the file is the last file is determined by storing the data of the last file number and referring to it. If the currently selected file is the last file, step S4
Proceed to 2 to display an end alarm and end (END) display, and do not return to the original state.

If it is determined in step S40 that the file is not the last file, the flow advances to step S41 to move to the beginning of the next file. At this time, if a file number that has been deleted is selected, the display of that file number is skipped. Therefore, No. When 3 is erased, the display changes in the order of 1 → 2 → 4 → 5... Every time the down / rewind lever 17 is pressed.

As another embodiment, in the display, No.
When the deleted file is selected without skipping the file No. 3, the display “missin” as shown in FIG.
g "or" erased "may be blinked, so that it can be more clearly understood that the file of No. 3 has been deleted.

The data of the last file number is also used for determining a file number for a new recording. The update is performed when there is a possibility that the final file number may change, such as when a file is deleted or rearranged.

FIG. 8 is a diagram showing a file entry for managing the audio file recorded on the recording medium 61. As shown in FIG. 8, the file entry manages each file for items such as a file name, an extension, an attribute, a creation date, a start address, and a size.

FIG. 9A is a file number table for determining the order of display and reproduction of files, and each number is associated with a file name. FIG. 9B shows the file N
o. FIG. 3 is a diagram showing a state where 3 is erased. As shown in FIG. The file name associated with No. 3 is blank. When the rearrangement of the files is instructed in this state, the display numbers corresponding to the audio files are shifted by the number of the deleted audio files (here, No. 3), and the display order or the reproduction order is shifted to the top. The management information is updated so that a serial number is assigned from the audio file to the last audio file. FIG. 9C is a diagram showing a state where the management information is updated by rearranging the files. FIG.
As shown in FIG. The third and subsequent files are shifted forward one by one to eliminate missing numbers. The process is the same when a plurality of files are deleted.

As described above, in the present embodiment, the file number is not updated immediately when the file is erased, and the file number is changed when a predetermined operation such as pressing the index button 21 or the hold button 15 is performed. Since the file is updated, the deleted file can be easily checked.

The above specific embodiments are summarized as follows.

1. The audio recording / reproducing device of the present embodiment includes:
Recording medium 61 for recording an audio file, and display number management information indicating the order of display or reproduction for the audio file (file number table in FIG. 9A)
Means (system control unit 60) for managing the display number, selecting means (up / fast forward, down / fast rewind lever 17) for selecting an arbitrary display number, and deleting the audio file corresponding to the selected display number. Erasing means (erase button 22)
And sound file rearrangement instructing means (index button 2
1, a hold button 15) and an updating unit (system control unit 60) for updating the management information when the voice file rearrangement instructing unit is operated.

2. 1. In the above, the updating means (system control unit 60) shifts the display number corresponding to each audio file by the number of the audio files erased by the erasing means (erase button 22) to change the display order or the reproduction order. The management information is updated such that the management information is updated so as to have a serial number from the first audio file to the last audio file. An audio recording / reproducing apparatus according to claim 1.

3. 1. In the above, when the management information is not updated by the updating means after the voice file is deleted by the deleting means, the display number corresponding to the deleted voice file is selected by the selecting means. In some cases, a display means (system control unit 60) for displaying a message indicating that the audio file corresponding to the selected display number has been deleted is provided. An audio recording / reproducing apparatus according to claim 1.

[0034]

According to the present invention, there is provided an audio recording / reproducing apparatus capable of easily confirming a deleted file.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an IC recorder to which an audio recording / reproducing device of the present invention is applied.

FIG. 2 is a diagram showing a system configuration of an IC recorder according to the embodiment.

FIG. 3 is a diagram for explaining a main flow of the IC recorder according to the embodiment.

FIG. 4 is a flowchart illustrating details of an erase (ERASE) process in step S13 of FIG. 3;

FIG. 5: HOLD S when the hold button 15 is turned ON.
It is a flowchart for demonstrating the detail of a process when W is turned ON.

FIG. 6 is a flowchart illustrating details of fast-forward (FF) processing in step S9 of FIG. 3;

FIG. 7 is a diagram for explaining another embodiment of the present invention.

FIG. 8 is a diagram showing a file entry for managing an audio file recorded on a recording medium 61.

FIG. 9A is a file number table for determining the order of display and reproduction of a file, and FIG.
o. 3 is a diagram showing a state in which files are deleted, and FIG. 4C is a diagram showing a state in which files are rearranged.

[Explanation of symbols]

 Reference Signs List 11 memory card insertion slot 12 microphone 13 LED window 14 liquid crystal window 15 hold button 16 record button 17 up / fast forward, down / fast return lever 18 play button (PLAY button) 19 stop button (STOP button) 20 menu button (MENU button) Reference Signs List 21 index button 22 erase button 23 speaker sound emission hole 50 microphone 51 amplifier 52 low-pass filter (LPF) 53 A / D converter 54 D / A converter 55 low-pass filter (LPF) 56 amplifier 57 speaker 58 digital signal processing unit ( DSP) 59 Drive circuit 60 System control unit (CPU) 61 Recording medium 62 RAM 64 Display 65 Operation switches

Claims (3)

[Claims] 1. A recording medium for recording an audio file, management means for managing display number management information indicating a display order or reproduction order for the audio file, a selection means for selecting an arbitrary display number, Erasing means for erasing the audio file corresponding to the selected display number, audio file rearrangement instruction means, and updating means for updating the management information when the audio file rearrangement instruction means is operated. An audio recording / reproducing apparatus characterized in that: 2. The updating means shifts a display number corresponding to each audio file by an amount corresponding to the audio file erased by the erasing means, and changes a display order or a reproduction order from a first audio file to a last audio file. 2. The audio recording / reproducing apparatus according to claim 1, wherein the management information is updated so that the audio file has a serial number. 3. When the management information is not updated by the updating means after the voice file is deleted by the deleting means, a display number corresponding to the voice file deleted by the selecting means is displayed. 2. The audio recording / reproducing apparatus according to claim 1, further comprising: display means for displaying, when selected, an audio file corresponding to the selected display number has been deleted.