JP3298142B2 - Audio recording / reproducing apparatus and method - Google Patents

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 and method suitable for use in learning a foreign language, for example, for recording and reproducing audio data using a disk.

[0002]

2. Description of the Related Art Heretofore, for example, a so-called LL (Language Laborato) has been used as a voice recording / reproducing apparatus for learning a foreign language.
ry) Learning machines are known. In this LL learning machine, for example, a magnetic tape was used, and the voice of the teacher was recorded on the left channel in a plurality of items.

[0003] A student selects an arbitrary item from the plurality of items and reproduces the selected item. Then, by reproducing the selected item, the teacher listens to the voice of the teacher pronounced from the left channel, and learns the pronunciation according to this. And
The teacher records and reproduces his / her own voice that has been learned following the teacher, compares it with the teacher's pronunciation, and repeats pronunciation practice so that the pronunciation can be as close as possible to the teacher's pronunciation.

[0004] The own voice is recorded on the right channel of the magnetic tape in which the teacher's voice is recorded on the left channel.

[0005]

However, in the above-mentioned conventional audio recording / reproducing apparatus, since the magnetic tape is used as a recording medium, in order to search for desired audio data, for example, fast forward or rewind is required. Since the search for the desired audio data is performed by repeatedly performing an operation such as performing reproduction at an arbitrary position, it takes time to search for the desired audio data.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an audio recording / reproducing apparatus and method capable of shortening a search time for desired audio data. .

[0007]

An audio recording / reproducing apparatus according to the present invention reproduces audio data recorded on a disk,
Recording / reproducing means for converting the audio data into an audio signal and outputting the same to the outside, converting an externally input audio signal into audio data, and recording the audio data on the disk,
An operation input means for performing an operation input by a user; the disc is formed by dividing the text and an address for managing audio data recorded in text units which are a series of audio reproduction units; An address for managing audio data in sentence units, which are units of audio reproduction, is recorded. The operation input unit includes an input unit for performing a reproduction operation of audio data in text units by a user, and a user in the sentence units in text units. An input unit for performing an operation of reproducing audio data and an input unit for performing a fast-forward operation and a fast-reverse operation by a user are provided. When the reproduction operation is performed in text units, Based on the address, playback control of audio data is performed in text units, and playback operation is performed in sentence units. When the fast forward operation is performed, the reproduction position of the audio data is set at a predetermined interval from the current reproduction position. The audio data is moved forward, and when the fast-return operation is performed, the reproduction position of the audio data is moved backward at a predetermined interval from the current reproduction position. The audio recording / reproducing method according to the present invention reproduces audio data recorded on a disc, converts the audio data into an audio signal and outputs it to the outside, and converts an externally input audio signal into audio data. An audio recording / reproducing method for recording the audio data on the disc, wherein the audio data is formed by dividing the text and an address for managing audio data recorded in a text unit, which is a series of audio reproduction units. An address for managing audio data in sentence units, which is a unit of audio reproduction, is recorded. When a user performs a reproduction operation in text units, the audio data is reproduced in text units based on the address. If the user performs a playback operation in sentence units, the audio data is sent in sentence units based on the address. When the user performs a fast-forward operation, the playback position of the audio data is advanced at a predetermined interval from the current playback position, and when the user performs the fast-reverse operation, the audio data is played back. The data reproduction position is moved backward at a predetermined interval from the current reproduction position.

[0008]

In the audio recording / reproducing apparatus according to the present invention, when a user performs a reproducing operation in units of text, the audio data is reproduced in units of text based on the address, and reproduced in units of sentences by the user. When the operation is performed, the audio data is reproduced in the sentence unit based on the address, and when the user performs the fast forward operation, the reproduction position of the audio data is set at a predetermined interval from the current reproduction position. If the user performs a fast reverse operation, the playback position of the audio data is moved backward at a predetermined interval from the current playback position. In the audio recording / reproducing method according to the present invention, when a user performs a reproducing operation in units of text, the audio data is reproduced in units of text based on the address, and the reproducing operation is performed in units of sentences by the user. In this case, the audio data is reproduced in the sentence unit based on the address, and when the user performs a fast-forward operation, the reproduction position of the audio data is advanced at a predetermined interval from the current reproduction position. When the user performs a fast reverse operation, the playback position of the audio data is moved backward at a predetermined interval from the current playback position.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of an audio recording / reproducing apparatus according to the present invention. The audio recording / reproducing apparatus according to the present embodiment includes, for example, an operation unit 1 for operating recording and reproduction of audio data as shown in FIG. A disk recorder 2; a recording buffer memory 3 and a reproduction buffer memory 4 which are storage means for temporarily storing audio data supplied from the operation unit 1 and audio data supplied from the disk recorder 2; Using the buffer memory 3 in a time division manner, the audio data from the operation unit 1 is supplied to the disk recorder 2 via the recording buffer memory 3, and the reproduction buffer memory 4 is used in a time division manner. Control means for supplying audio data from the disk recorder 2 to the operation unit 1 via the reproduction buffer memory 4 And a system controller 5.

The operation unit 1 includes a key panel 9 provided with a plurality of keys for recording and reproducing audio data.
A microphone 6 for inputting audio and an audio signal supplied as an analog signal from the microphone 6 are digitized to form audio data, and are also supplied from the disk recorder 2 via the reproduction buffer memory 4. It comprises a codec 7 for converting audio data into an analog signal to form an audio signal, and a speaker device 8 which emits sound in accordance with the audio signal from the codec 7.

The recording buffer memory 3 and the reproduction buffer memory 4 are semiconductor memories such as a RAM, for example, and have first and second storage areas 3a and 3a, respectively.
b and first and second storage areas 4a and 4b.
First and second storage areas 3 of the recording buffer memory 3
a, 3b and the first and second buffer memories 4 for reproduction.
Storage areas 4a and 4b each have a capacity of 4096 bytes (total of 8192 bytes). For example, the codec 7 converts an audio signal to 64 Kbps (8 Kbytes / sec).
In this case, the recording buffer memory 3 is provided with first and second storage areas 3a and 3b each having a storage area for 0.512 seconds.

The recording buffer memory 3 and the reproducing buffer memory 4 have a data transfer speed of, for example, 64 Kbp.
s, and the disk recorder 2 having a transfer rate several tens of times that of the codec 7.
When data is transmitted and received between the device and the device, the device temporarily stores a fixed amount of data and plays a role of a buffer for transfer rate conversion.

The hard disk provided in the disk recorder 2 is capable of recording and reproducing data on, for example, both sides. If the codec 7 having a data transfer rate of 64 Kbps (= 8 Kbytes / sec) is used, the storage capacity is Is about 1 hour 28 minutes (42.1 Mbytes / sec) = 5
262.5 seconds ≒ 1 hour 28 minutes). In addition, a part of the recording area of the recording area for one hour and 28 minutes,
Address data (for example, a sector number, etc.) indicating a "text" which is a series of audio data of one unit of reproduction area, and "sentence" which is audio data of a partial reproduction area formed by dividing the text into several parts. Is an edit data recording area, which is an area for recording address data indicating “.”

In the edit data area, for example, the limited number of registered texts is 50, the limited number of sentences in each text is 100, and the sector number is stored as 3 bytes of data. (Approximately 30 sectors = equivalent to about 2 seconds of audio).

Correspondingly, the above disk recorder 2
Is a disk recorder for recording and reproducing data on and from a hard disk capable of recording and reproducing data on both sides. For example, recording and reproduction on two hard disks can be performed. For this reason, the disk recorder 2 has two recording / reproducing systems for performing recording / reproduction provided on the upper surface side and the lower surface side of one hard disk, respectively, and the upper and lower surfaces of the other hard disk respectively. It has a total of four recording / reproducing systems including two recording / reproducing systems for performing recording / reproducing.

The disk recorder 2 has, for example, 624 data cylinders, 33 sectors per track, 512 bytes per sector, a format capacity of 42.1 Mbytes, and a data transfer rate. For example, the maximum specifications are 10 Mbytes / sec, the maximum access time is 65 ms or less, the average access time is 29 ms or less, the inter-track access time is 8 ms or less, the spindle speed is 3600 rpm, and the average waiting time is 8.3 ms.

The key panel 9 has a text number display section 20 for displaying the text number, for example, as shown in FIG. 2, and a sentence number / for displaying the sentence number and a symbol indicating the end of the sentence. A sentence end display section 21, a counter 22 for displaying the remaining time of the audio data recorded on the hard disk, and the like;
Text delete key 23 for deleting the above text
A sentence deletion key 24 for deleting the sentence, a sentence reproduction key 25 for reproducing the last one second of the sentence, and two sentences for the sentence.
A sentence division / fine adjustment key 26 for finely adjusting the end position of the sentence and a sentence connection key 27 for connecting two sentences are provided.

The key panel 9 includes a fast-reverse key 28 for fast-rewinding, a fast-forward key 29 for fast-forwarding, and a text backward key 30 for playing back a text preceding the current text. And a text advance key 31 for playing the text after the current text
A sentence retreat key 32 for reproducing a sentence before the current sentence, and a sentence advance key 3 for reproducing a sentence after the current sentence
3, a stop key 34 for designating stop of reproduction, a play key 35 for designating reproduction, and a record key 36 for recording.

The stop key 34 and the rewind key 28
When the fast-return key 28 or the fast-forward key 29 is turned on while the stop key 34 is turned on, the system controller 5 detects the skip key 37 and the fast-forward key 29. Key 28
Alternatively, each time the fast forward key 29 is turned on, the disc recorder 2 is controlled so that the reproduction position of the audio data recorded on the hard disk is moved backward or forward at a predetermined interval.

The audio recording / reproducing apparatus according to the present embodiment having such a configuration is, for example, an LL (Language) for learning a foreign language.
uage Laboratory) can be used as a learning machine, but in order to use it as an LL learning machine, a master disk must first be created as a model for recording audio data such as pronunciation by a teacher. To record this teacher's voice and create a master disc,
After simultaneously turning on the reproduction key 35 and the recording key 36 provided on the key panel 9 shown in FIG.

The microphone 6 collects the teacher's voice, forms an analog audio signal from the collected voice, and supplies the analog signal to the codec 7. The codec 7 synchronizes with a timing signal of, for example, 8 kHz from the system controller 5 for 125 μsec.
A / D conversion is performed on the audio signal from the microphone 6 for each c to form and output, for example, 8-bit audio data. This audio data is supplied to the recording buffer memory 3 via the bus line 10.

The system controller 5 is provided with the 8K
The recording buffer memory 3 is controlled so that the audio data output from the codec 7 is stored in the first storage area 3a or the second storage area 3b in response to an interrupt request by the timing signal of Hz.

As described above, the first and second storage areas 3a and 3b each have a data area of 0.512 seconds (4096 bytes), and the system controller 5 Storage area 3a or second storage area 3
When the audio data for 0.512 seconds is stored in any one of b, the stored audio data is transferred to the disk recorder 2 at a high speed of, for example, 10 Mbps.

During this time, the audio data output from the codec 7 every 125 μsec continues to be written to the other storage area. The system controller 5 controls the recording buffer memory 3 so as to use the first storage area 3a and the second recording area 3b in a time-division manner when recording audio data.

From the first storage area 3a or the second storage area 3b of the recording buffer memory 3, the 10
The audio data read at a speed of Mbps is supplied to the disk recorder 2, and at this time, the system controller 5 adds an absolute time code to the audio data. Thus, the disk recorder 2 records the absolute time of the audio data together with the audio data on the hard disk.

The recording of the audio data is performed until the recording stop key 38 shown in FIG. 2 is turned on to specify the stop of the recording. When the recording stop key 38 is turned on to stop recording, the system controller 5 determines the series of recorded audio data as one text and determines the recording start point and the recording end point of the text. The disk recorder 2 is controlled so that addresses and text numbers indicating text numbers are recorded as so-called TOC (Table of Contents) data in the edit data area of the hard disk.

The text as the above series of voice data is:
This may be left as it is, but it is easier to search if it is divided into several parts. For this reason, the teacher performs editing so as to form a plurality of sentences by dividing the text into several parts. To split the text into a plurality of sentences, use the sentence split / fine adjustment key 2 shown in FIG.
6 is used.

The sentence division / fine adjustment key 26 is provided as, for example, one key, but three keys are provided therein. The center part is a division key, and the right part is a division point advanced by, for example, 64 msec. The forward fine-adjustment key to be moved, and the left side portion is a reverse fine-adjustment key to move the division point backward by, for example, 64 msec.

The teacher reproduces the voice data of the recorded text, and uses the division key provided at the center of the sentence division / fine adjustment key 26 at a desired position, for example, between pronounced words. Turn on. This allows
The system controller 5 divides the text into two at the point where the division key is turned on (the total number of sentences increases by one when viewed as a whole) to form two sentences, and The disc recorder 2 is controlled so that addresses indicating a recording start point and a recording end point of a sentence, a sentence number of each sentence, and the like are recorded in the edit data area.

When it is desired to finely adjust the point at which the voice data in the text is divided into two (divided point), the key for fine adjustment of the forward movement or the key for fine adjustment of the backward movement is turned on.
Accordingly, the system controller 5 advances the division point by, for example, 64 msec or retreats by 64 msec, and sets a new recording start point and a recording end point of each sentence formed by finely adjusting the division point. The disc recorder 2 is controlled so that the indicated address, the sentence number of each sentence, and the like are recorded in the edit data area.

When it is desired to connect two sentences formed by performing the above-mentioned division, the user operates the sentence connection key 27 while the last sentence of the current sentence is stopped. Thereby, the system controller 5
Connects the current sentence and the next sentence (the total number of sentences is reduced by one when viewed as a whole), and sets the recording start point and recording end point of the sentence formed by the connection. The disc recorder 2 is controlled so that the indicated address and sentence number are newly recorded in the edit data area.

When the text and the sentence are formed in this way, the text number, the sentence number, the respective recording addresses and the like are recorded in the edit data area of the hard disk as described above. Therefore, it is possible to specify desired text and sentence voice data. Therefore, when an unnecessary text is to be deleted, the text to be deleted is selected by the text backward key 30 or the text forward key 31. The system controller 5 controls the text number display unit 20 to count down or up the displayed text number every time the text backward key 30 or the text forward key 31 is turned on. The teacher selects the text to be deleted based on the text number displayed on the text number display section 20, and turns on the text deletion key 23. Thereby, the system controller 5
Controls the disk recorder 2 to delete the audio data of the selected text and to delete the addresses indicating the recording start point and the recording end point of the deleted text recorded in the edit data area. I do.

To delete an unnecessary sentence, the sentence retreat key 32 or the sentence advance key 3
Select the sentence to be deleted by 3. That is,
The system controller 5 controls the sentence number / sentence end display section 21 so as to count down or up the sentence number to be displayed each time the sentence retreat key 32 or the sentence advance key 33 is turned on. The teacher uses this sentence number /
The sentence to be deleted is selected based on the sentence number displayed on the sentence end display section 21, and the sentence deletion key 24 is turned on. Thereby, the system controller 5 deletes the audio data of the selected sentence and deletes the addresses indicating the recording start point and the recording end point of the deleted sentence recorded in the edit data area. The disk recorder 2 is controlled.

In order to prevent an accident due to an erroneous operation, the system controller 5 deletes the selected text or sentence only after the text delete key 23 and the sentence delete key 24 are continuously turned on for one second. The above control is performed.

In this way, when the master disk is formed by the teacher, the student can learn. The student plays back audio data recorded on the master disk (hard disk), and performs pronunciation practice and the like. In other words, the student turns on the reproduction key 35 when he wants to reproduce from the first sentence of the first text among the texts and sentences recorded on the hard disk. Before the reproduction is designated, the system controller 5 transmits the T-recorded in the edit data area in advance.
By reproducing the OC data, the recording position of the audio data is recognized. When the reproduction is designated, the reproducing head is moved to the position where the designated audio data is recorded and the reproduction is started. The disk recorder 2 is controlled. Thereby, the reproduction is started from the audio data of the sentence number 1 in the text number 1 among the audio data recorded on the hard disk.

It is to be noted that the reproduced audio data includes, in addition to the audio data generated by the teacher, an absolute time code indicating the absolute time of the audio data.

The system controller 5 stores the audio data read from the hard disk for 0.512 seconds corresponding to the storage capacity of the first storage area 4a or the second storage area 4b of the reproduction buffer memory 4. (409
The first storage area 4a or the second storage area 4b is controlled so that the data is transferred at a high speed and written. At the same time, the system controller 5 supplies the 8 KHz timing signal to the first storage area 4a or the second storage area 4b as an interrupt request signal. As a result, the audio data written in the first storage area 4a or the second storage area 4b is sequentially read out as, for example, 8-bit audio data every 125 μsec, and the codec 7 is transmitted via the bus line 10. Supplied to

When one of the storage areas 4a and 4b is empty, the system controller 5 controls the disk recorder 2 so as to read the next data from the hard disk. During this time, the audio data is continuously transferred from the other storage area to the codec 7 every 125 μsec. The system controller 5 controls the reproduction buffer memory 4 so as to use the first storage area 4a and the second recording area 4b in a time-sharing manner when reproducing the audio data.

The codec 7 stores each of the storage areas 4
The audio data supplied from a and 4b is D / A converted to form an analog audio signal, which is supplied to the speaker device 8. Thus, the student whose teacher's voice or the like is pronounced from the speaker device 8 performs pronunciation practice or the like in accordance with the teacher's voice that is pronounced from the speaker device 8.

The system controller 5 reproduces data indicating the text number and sentence number of the audio data being reproduced from the TOC data, and supplies these to the codec 7, respectively. Codec 7 above
Supplies the data indicating the text number and the sentence number to the text number display section 20 and the sentence number / sentence end display section 21, respectively. Thereby, the text number display section 20 and the sentence number /
The sentence end display section 21 displays the text number and the sentence number of the audio data being reproduced.

The absolute time code of the audio data reproduced together with the audio data is supplied to the counter 22 via the codec 7. Thus, the absolute time code of the audio data currently being reproduced is displayed on the counter 22.

The reproduction of such audio data can be performed by the system controller 5 detecting that the stop key 34 shown in FIG. 2 has been turned on, or by reproducing all the audio data recorded on the hard disk. The process is continued until the end of the reproduction is detected.

In the above description, the case where reproduction from the first sentence of the first text is desired to be performed, but when the desired text or sentence is reproduced, the desired text or sentence is reproduced. A so-called search for performing reproduction by designating can be performed.

That is, when the student turns on the text backward key 30 and the text forward key 31, the system controller 5 detects them and the respective keys 3.
Each time 0 and 31 are turned on, the text number display unit 20 is controlled so that the displayed text number is counted down or incremented by one. When the student turns on the sentence retreat key 32 and the sentence advance key 33, the system controller 5 detects this and the sentence number to be displayed is incremented by one each time the keys 32 and 33 are turned on. The sentence number / sentence end display section 21 is controlled so as to count down or count up.

The student selects desired voice data based on the text number and the sentence number displayed on the text number display section 20 and the sentence number / sentence end display section 21. Then, after selecting the desired audio data, the reproduction key 35 is turned on. The system controller 5 controls the playback key 35
Is turned on, the disc recorder 2 is controlled to reproduce the audio data of the selected text number and sentence number. As a result, the audio data of the selected text number and sentence number is reproduced by the disk recorder 2, and sound is generated from the speaker device 8.

To perform a more detailed search, the student selects and reproduces a desired text and sentence as described above, and turns on the fast-return key 28 or the fast-forward key 29 during the reproduction. . When the system controller 5 detects that the fast-return key 28 or the fast-forward key 29 has been turned on during reproduction, the system controller 5 only performs the operation while the keys 28 and 29 are turned on.
The disc recorder 2 is controlled so as to perform interlaced playback every 3 seconds, and the absolute time code is set to 2 bits.
The counter 22 is used to advance or return at high speed every 3 seconds.
Control.

Here, the fast rewind key 28 or the fast forward key 29 is turned on to perform interlaced playback every two to three seconds to perform a fine search of the audio data in the sentence, but a slightly more general search. Sometimes you want to do.
In the audio recording / reproducing apparatus, the stop key 34, the fast-reverse key 28, and the fast-forward key 29 constitute a skip key 37. The fast-return key 28 or the fast-forward key 29 is turned on while the stop key 34 is turned on. When operated, the system controller 5 detects this, and every time the fast rewind key 28 or the fast forward key 29 is turned on, the playback position of the audio data recorded on the hard disk is moved backward by a predetermined interval. Or, by controlling the disk recorder 2 so as to move forward, a rough search is possible.

That is, the operation of the audio recording / reproducing apparatus at the time of performing the above-described rough search is shown in the flowchart of FIG. The flowchart shown in FIG. 3 starts when audio data is recorded on the hard disk, and proceeds to step S1.

In step S1, the system controller 5 determines whether the fast-forward key 29 has been turned on after the stop key 34 has been turned on. If YES, the process proceeds to step S2. In the case of, the process proceeds to step S6.

In step S6, the system controller 5 determines whether the quick return key 28 has been turned on after the stop key 34 has been turned on. If YES, the process proceeds to step S7. In the case of NO, the process returns to the step S1, and the routine of the steps S1 and S6 is repeated.

In step S7, since the fast return key 28 is turned on after the stop key 34 is turned on, the system controller 5 detects this and the stop key 34 is turned on. Then, every time the fast return key 28 is turned on once, the counter 22 is controlled so that the absolute time code is skipped back, for example, by 5 minutes, and the process proceeds to step S3.

In step S2, the fast-forward key 29 is turned on after the stop key 34 is turned on. Therefore, the system controller 5 detects this and the stop key 34 is turned on. Then, every time the fast-forward key 29 is turned on once, the counter 22 is controlled so as to carry out a skip feed in which the absolute time code is advanced by, for example, 5 minutes, and the process proceeds to step S3.

In step S3, the system controller 5 performs the skip feed or skip return to determine whether or not the text goes beyond the foremost record or the last record (hereinafter referred to as the tail). Is determined, the process proceeds to step S8 if YES, and proceeds to step S4 if NO.

In step S8, the skip feed or skip return causes the end of the text to be exceeded.
Controls the counter 22 to display, for example, the absolute time code at the end of the text (the absolute time code of the audio data at the beginning of the text or the absolute time code of the audio data at the end of the text), and
Proceed to 4.

In step S4, the system controller 5 determines whether or not the reproduction key 35 has been turned on. In the case of YES, the process proceeds to step S5, in which NO
In this case, step S4 is repeated until it is determined that the reproduction key 35 has been turned on.

In step S5, the system controller 5 controls the disc recorder 2 so as to reproduce the audio data selected by the skip feed or skip return, and ends the processing.

In the skip feed and skip return, the audio data to be reproduced can be specified to be skipped at intervals of, for example, 5 minutes as described above. A rough search can be made possible. For this reason, when searching for desired voice data from long-time voice data, first,
By performing a rough search by the skip feed and the skip return, and by performing a fine search by the interlaced reproduction every two to three seconds, a desired voice data can be searched more quickly. This is because the student can quickly search for desired audio data not only when the teacher searches for the desired audio data from the master disk created in advance by the teacher but also when the teacher creates the master disk. Thus, it is possible to speed up the creation of the master disk.

The skip feed and the skip return can be performed by turning the stop key 34 on while operating the fast return key 2
8 or fast-forward key 29 can be executed by turning it on, so there is no need to provide a special dedicated key.
The key panel can be reduced in size. The skip key 37 includes the stop key 34, the fast rewind key 28, and the fast forward key 29. The skip key 37 is provided separately from the stop key 34, the fast rewind key 28, and the fast forward key 29. May be.

In the above-mentioned skip feed and skip return, the reproduction position is moved at the above-mentioned 5-minute intervals, but this time interval may be arbitrarily set. In the skip feed and skip return, the playback position is moved at the 5-minute interval, and when the playback key 35 is newly turned on, playback is performed from the moved position.
In this case, the reproduction may be automatically performed from that position after the movement without waiting for the reproduction key 35 to be turned on again.

In the description of the above-described embodiment, for example, the codec 7
A / D conversion is performed for each c, and the recording buffer memory 4 is provided with first and second storage areas 4a and 4b for 0.512 seconds, respectively. ,
Although specific numerical values are used for more detailed description, the numerical values are not limited to the above numerical values at all, and it is needless to say that any numerical values may be used.

[0061]

According to the audio recording / reproducing apparatus and method according to the present invention, when a user performs a reproducing operation in units of text, the audio data is reproduced in units of text based on the address, and sentence sent by the user. When the reproduction operation is performed in units, the audio data is reproduced in the sentence unit based on the address, and when the user performs the fast forward operation, the reproduction position of the audio data is changed from the current reproduction position. The audio data is moved forward at a predetermined interval, and when the user performs a fast rewind operation, the audio data reproduction position is moved backward at a predetermined interval from the current reproduction position. As a result, in the audio recording / reproducing apparatus and method according to the present invention, the search time for audio data can be reduced, and the reproduction position can be moved at high speed.

[0062] For this reason, desired audio data can be searched in a short time.

[Brief description of the drawings]

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

FIG. 2 is a schematic diagram showing a key panel of an operation unit provided in the audio recording / reproducing apparatus of the embodiment.

FIG. 3 is a flowchart for explaining an operation of skip forwarding and skip return of the audio recording and reproducing apparatus of the embodiment.

[Explanation of symbols]

1 Operating unit 2 Disk recorder 3 Recording buffer memory 3a · First storage area of recording buffer memory 3b ······· Second storage area of recording buffer memory 4 ······· Reproduction buffer memory 4a ··· ... First storage area of reproduction buffer memory 4b... Second storage area of reproduction buffer memory 5... System controller 6 ...............・ ・ ・ ・ ・ ・ ・ ・ ・ Bus line 28 ・ ・ ・ ・ ・ ・ ・ ・ ・ Fast rewind key 29 ・ ・ ・ ・ ・ ・ ・ ・ ・ Fast forward key 34・ ・ ・ ・ ・ ・ ・ ・ ・ Stop key 37 ・ ・ ・ ・ ・ ・ ・ ・ ・ Skip key

Claims (4)

(57) [Claims] An audio data recorded on a disc is reproduced, the audio data is converted into an audio signal and output to the outside, and an audio signal input from the outside is converted into audio data and the audio data is converted into the audio data. Recording / reproducing means for recording on a disc, and operation input means for performing an operation input by a user; the disc has an address for managing audio data recorded in a text unit which is a series of audio reproduction units; An address for managing audio data in sentence units, which are audio playback units formed by dividing the text, is recorded. The operation input means is used by the user to perform an audio data playback operation in text units. Means, an input means by which a user performs an operation of reproducing audio data in units of the sentence, and a fast forward operation and a And an input means for performing a fast reverse operation. When the reproduction operation is performed in units of the text, the reproduction unit controls reproduction of audio data in units of the text based on the address. When the reproduction operation is performed in sentence units, the reproduction control of the audio data is performed in the sentence unit based on the address. When the fast forward operation is performed, the reproduction position of the audio data is set to the current reproduction position. An audio recording / reproducing apparatus characterized in that, when the fast reverse operation is performed, the reproduction position of the audio data is moved backward at a predetermined interval from the current reproduction position. . 2. The operation input means includes: an input means by which a user performs an operation of reproducing audio data in units of the text; an input means by which a user performs an operation of reproducing audio data in units of the sentence; Input means for performing a normal fast-forward operation, a normal fast-reverse operation, a rough fast-forward operation, and a rough fast-reverse operation of audio data are provided, and the reproducing means is provided when the normal fast-forward operation is performed. In this case, the playback position of the audio data is advanced at a predetermined interval from the current playback position, and when the normal fast reverse operation is performed, the playback position of the audio data is shifted from the current playback position by a predetermined amount. When the rough fast-forward operation is performed at an interval, the playback position of the audio data is set to be longer than the predetermined interval from the current playback position. 2. The audio data reproducing apparatus according to claim 1, wherein when the rough fast-return operation is performed, the audio data reproduction position is moved backward from the current reproduction position at an interval larger than the predetermined interval. Audio recording and playback device. 3. Reproducing audio data recorded on a disc, converting the audio data into an audio signal and outputting it to the outside, converting an externally input audio signal into audio data, and converting the audio data into An audio recording / reproducing method for recording on a disk, comprising: an address for managing audio data recorded on the disk in text units, which are a series of audio reproduction units;
An address for managing audio data in sentence units, which are audio playback units formed by dividing the text, is recorded. When a user performs a playback operation in text units, the text is stored based on the address. When the user performs a playback operation in sentence units, the audio data is played back in sentence units based on the address. When the user performs a fast-forward operation, The playback position of the audio data is advanced at a predetermined interval from the current playback position, and when the user performs a fast reverse operation, the playback position of the audio data is shifted at a predetermined interval from the current playback position. An audio recording / reproducing method characterized by moving backward. 4. When a normal fast-forward operation is performed by the user, the reproduction position of the audio data is advanced at a predetermined interval from the current reproduction position, and the normal fast-reverse operation is performed by the user. In this case, the playback position of the audio data is moved backward at a predetermined interval from the current playback position, and when the user performs a rough fast-forward operation,
When the playback position of the audio data is advanced from the current playback position at an interval larger than the predetermined interval, and the user performs a rough fast-return operation,
4. The audio recording / reproducing method according to claim 3, wherein the reproduction position of the audio data is moved backward from the current reproduction position at an interval larger than the predetermined interval.