JPS63303399A - Voice information storage apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Summary" This is an audio information storage device that reduces overhead during subsequent editing of audio data by storing the storage position and storage interval at the same time as audio data is stored. enables high-speed data editing.

[Industrial Field of Application] The present invention relates to an audio information storage device, and more particularly to an audio information storage device that enables high-speed data editing. The amount of audio data is larger than other types of data, and the memory capacity also increases.

When editing such a large amount of data, an audio information storage method that can perform high-speed data editing is required.

[Prior Art] An e-mail service (so-called multimedia mail service) that handles multiple media data such as audio and text images as one e-mail has e-mail editing functions such as addition, insertion, and deletion for modifying e-mail contents. Conceivable.

For mail, the data of each media is accumulated in synchronization with each other, and the data of A3 (all media)' becomes the image of that SJ image. Therefore, an editing function for audio data is naturally required. By the way, as mentioned above, the amount of audio data is larger than that of images, etc., and the monthly and time constraints are severe, so conventionally, audio data has been used only for high-speed storage and playback. A simple sequential storage method has been adopted.

FIG. 9 is an explanatory diagram of a conventional city information storage system. High
The data log signal output from the source 1 enters the Δ2/[) converter 2, where it is converted into f digital data and is sequentially stored in the audio storage 3. The stored information (γ2 voice information) is shown in the figure. ? IJ, sea urchin time data, and wealth j4'i data.

[Problem to be solved by the invention 1 However, in this J:Ui≧accumulation method, A at the time of editing
- The bar head is large and is not suitable for editing; for example, when inserting or deleting, data must be rearranged, and kneading involves an access to the storage device, resulting in a very human-intensive overhead.

FIG. 10 is an explanatory diagram of data insertion using the conventional method.

As shown in the figure #1. If there is accumulated information for two blocks #2, new insertion data is added to this. Assume that the insertion position is between #1 and #2. At this end, the inserted data becomes #2, and the old data of #2 becomes #3. According to the conventional insertion method, it is necessary to rearrange the data, that is, move the old data #2 to the #3 position, and store the inserted data #2 in the original position. It is necessary to access the storage device 3 each time. 1) This operation requires a very large amount of overhead.

An object of the present invention is to provide an audio information storage device that can efficiently implement editing functions such as addition, insertion, and deletion for audio data that has a large amount of data and is subject to severe time constraints.

[Means for Solving the Problems] FIG. 1 is a block diagram of the principle of the present invention. In the figure, 11 is an audio information memory for storing audio information data;
2 divides the audio information data stored in the audio information memory 11 into a plurality of blocks], and divides the audio information data stored in the audio information memory 11 into a plurality of blocks. 13 is the audio information mail 1
1/1 is a bus that connects these phases n.

[Effect 1 The audio information data sent via the bus 14 is
When the audio information data is stored in the information memory 11, the storage position and the number of pieces of audio information data are stored in the position information table 12. , Figure 2 shows that at this time, the audio information
It is a diagram showing the correspondence of evening voice information tables.

As shown in the figure, the audio information data is composed of time series data and audio data, and is further divided into a plurality of blocks #1 to #M (M is an integer). The unit of division of these blocks #1 and #M may be arbitrary. The position information data is composed of time and position information for each block. Here, the position information is information indicating at which position in the storage device (file) the audio data at a certain arbitrary time is stored. Specifically, according to the present invention, a memory address is used.
Audio information data and location information data are stored in the audio information memory 119 and the location information table memory 12, respectively, with the correspondence shown in the figure. By arranging the position information in chronological order in the position information table memory 12 in this way, the position information can be referenced from the position information table in the position information table memory 12 even if the audio data is not arranged in chronological order when editing data. By doing so, it becomes possible to play back the audio at any time. As described above, according to the present invention, it is possible to edit the audio data without rearranging it, and the overhead can be reduced by the unnecessary access time.

A specific example of data insertion will be explained. Third
The figure is an explanatory diagram of the operation when inserting data.

In the present invention, data is not rearranged because overhead is generated because data is rearranged during data editing. Therefore, as shown in the figure, the inserted data is self-deleted and accumulated (immediately after the original voice information data). As a result, the audio data will not be arranged in chronological order, but by inserting the storage position of the inserted data into the insertion time part of the location information table as shown in Figure 3, the location information will be arranged in chronological order. . During playback, the audio data is extracted while referring to the location information table, so it can be played back in chronological order. This is approximately the same as the amount of data, and rearranging during editing causes a large overhead. Therefore, it is sufficient to have position information for a certain amount of audio data group (block).

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 4 is a configuration block diagram showing an embodiment of the present invention. In the figure, 20 is an exchange, 21 is the exchange lI! ! !
This is a control circuit that controls the machine 20. 30 is the exchange VA
20, which is a high-performance terminal connected to a CPU 30a that controls the overall operation, a memory 30b that stores a position information table, a bus 30C, a disk controller 30d, a buffer 30e that stores a series of audio data, and a buffer 30e that stores a series of audio data. D/A converter 3 that converts the output to an analog signal
0f. 31 is a disk that stores audio information data under the control of a disk controller 30d, and 32 is a speaker driven by a D/A converter 30f. The operation of the device configured as described above will be explained as follows.

The communication channel 120 transfers the data of the channel specified by the control circuit 21 to the high-performance terminal 30. The CPU 30a stores the input city information data on the disk 31 via the disk controller 30d.

At the same time, the position information data of the audio information data is stored in the position information table in the memory 30b.

FIG. 5 is a diagram showing the correspondence between the audio information data and the position information table that are used at this time. Here, when a reblock is divided for insertion or the like, off-hits are used to provide a shift of effective audio data within a block (details will be described later). Here, the audio information data is divided into 12 blocks #1 to #12. In this state, the intra-block offset is O for each block.

An example of inserting and overwriting data from this state will be explained. Now, consider the case where audio data is inserted for 50 minutes at time 180 in FIG. Time 180 is block #2
Since the block # exists in the block #
2 will be divided. That is, the first half is 80 pieces, the second half is 1 piece.
The front Y is from the beginning of the block, so the off-hat in the block is O as shown in Figure 6.
becomes. Since the second half starts from the 80th data, the offset will be 80. Also, the start time of the second half is 2 by adding the time 50 of the inserted audio data (block #13).
It will be 30. Thereafter, the inserted time 50 is added to the start time of blocks subsequent to the inserted block in the same manner. For example, the start time of block #12 is before data insertion (
The number 1100 in FIG. 5) becomes 1150 as shown in FIG. 6 after data insertion.

As a result of the above operations, there will be a difference between the time in the location information 7-pull and the time in the audio information data, as shown in the figure, but this will not be a problem if you use the time in the location information table during playback. There isn't. All the above operations are performed by CPU30a
(Figure 4).

The audio data edited in this way is stored on the disk 31.
The data is read from the buffer 3Qe and stored in the buffer 3Qe. The data stored in the buffer 30e is converted into an analog signal by the D/A converter 30f, and drives the subi 32. As a result, the audio signals are played back in time series. According to the present invention, since 12 sets of voice information data are i) based on the information recorded in the head information table, the number of data rearrangements is increased by 1, and the overhead is reduced. or be reduced.

FIG. 7 shows the sequence at the time of data registration of the device information table l\. First, CF'
U 30 a refers to the location information bouple and searches for the inserted block? l(■). ``Once a block is found (), the next step is to determine whether the block is to be divided ().
■) If the data to be inserted can be inserted in the middle of the block, the block is divided,
If it should be added after the block, it is divided into 1
．． T. If the block is not divided ('', CPU
30 a sets the insertion block L-] in the ruble, and the following -I7 [rearrange the lines -) (■). When the block is divided, the CPU 30a divides the inserted block by the data blue L, and sets a 1Φ input block between them (a)).

After that, -fn1~ri after the inserted block is rearranged by 7-pull-o (@), and then the contents of the inserted block are -
Check the C1 insertion position (offset) (■), update the number of offsets of the inserted block (■) Figure 8 is a diagram showing the sequence when deleting data on the position information table. . First, the CP Ll 30a searches for a block to be deleted on the table (■). When a block is found, it is checked whether the part to be deleted is in the middle of the block (■). If it is not in the middle, the area before or after the block is to be deleted.

In this case, the released bu[cock is deleted from the table and the subsequent ones are rearranged (■>).

If the deletion position is in the middle of a block, CPI
J30a creates the contents of the block, checks the deletion position (off hit) (■), and updates the A offset l- and the number of deletion blocks on the table ((4)). When the update is finished, the CPU 30a deletes the freed blocks from the -j table and rearranges the following (φ))
.

In the above explanation, in the storage operation of audio information data - 11
Although only one type of data has been described, the present invention is not limited to audio information data, and can be applied to all kinds of data storage operations.

[Effects of the Invention] As explained in Section 1, according to the present invention, the position information of the 6-tone information data is separated from the 8-tone data by Ic (i'
By setting it up as an i-device information table, it is possible to edit data without rearranging the audio data. Functions can be realized efficiently <i
It is possible to provide an audio information storage device.

4. Simplification of the drawings/, +: 11 clear Figure 1 shows the principle of the present invention [7179, Figure 2 shows the i + correspondence relationship of the 10-note information table of the I phonetic information database, Figure 1, Figure 3 4 is a configuration block diagram showing an embodiment of the present invention; FIG. 5 is a diagram showing the correspondence between voice information data and position information table according to the embodiment; The figure is an explanatory diagram of the operation when inserting data. Figure 7 shows the sequence when registering data to the location information table. Flowchart 1 Figure 8 shows the sequence when deleting data from the location information table Flowchart ↑ Figure 9 is an explanatory diagram of the conventional audio information storage method,
Figure 0 is an explanatory diagram of data insertion in the conventional method.

In Figure 1, 11 is a voice information memory; 12 is a position information table memory; 13 is the CPU, 1/'l is a bus.

Go to the information table for position 1 ■ Flowchart showing the sequence when storing data Figure 7 Figure 7 on the at information table ■ Flowchart showing the sequence when deleting data Figure 8

Claims (1)

[Claims] An audio information memory (11) for storing audio information data, and an audio information memory (11) that divides the audio information data stored in the audio information memory (11) into a plurality of blocks, and stores audio data in each divided block. A location information table memory (12) that stores information data storage locations and data numbers, and a CPU (1) that controls writing and reading of the audio information memory (11) and location information table memory (12).
3) and a bus (14) that interconnects these.