TW200428270A - Recording method of continuous audio data - Google Patents

Abstract

The invention provides a recording method of continuous audio data, which is adapted to be proceeded in a computer system with multi-thread microprocessor. The invention employs computer system to read continuous audio data and continuously sample. Then, the sampled data are sequentially recorded in a buffer record area. When the space of the buffer record area in the invention is insufficient, provide more than one first auxiliary thread and a second auxiliary thread, in which the first auxiliary thread is used to process the data in the buffer record area and the second auxiliary thread is used to sequentially record the sampled data afterwards in another buffer record area.

Description

200428270 / V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a recording technique, and particularly refers to a method of recording continuous sound data. [Prior art] The conventional recording technology uses a computer system to record continuous sound data (such as analog audio signals). 'Computer systems need to allocate a certain amount of memory as a buffer recording area 1 0 (such as the first (Shown in the figure), the buffer recording area 10 has at least one data block 100 and a status block 102, wherein the data block 100 is used to store a computer system for sampling continuous audio data-data 0 lines The status field 1 0 2 is used to store the current usage status of the buffered recording area 10. If the usage status is a processing status, it means that the sampling data in the buffered recording area 10 is being processed by the computer system If the use state is a standby state, it means that the buffer recording area 10 is storing the sampled data. The size of the buffer recording area 10 will directly affect the continuity and time delay of the recorded sound. If the buffer recording area 10 is larger, the more and more complete sampling data can be recorded, resulting in continuous continuity of the recorded sound, but since the computer system must process more sampling data, it will be i | The time delay of the recorded sound is worse; conversely, if the buffer recording area _0 is smaller, the time delay of the recorded sound can be improved, but its continuity will be worse. Therefore, the sounds recorded by Xizhi Technology cannot take into account both continuity and time delay. Furthermore, the practice of know-how is to cause the computer system to start fetching data in the buffered recording area 10 when there is insufficient space in the buffered recording area 10.

17341 Yingyeda.ptd Page 4 200428270 V. Description of the invention (2) Sample data is processed (including: compression, storage, etc.), and then the buffer state of the buffered recording area 10 is released and changed to a processing state. So that the subsequent sampling data is put into another buffered recording area 10, the state of the other buffered recording area is set to a standby state, and so on, until the sound recording is completed. It can be seen from the above that the computer system needs to perform a lot of work and tedious, which makes it impossible to record sound data continuously, and this is the main factor of the poor continuity of the sounds recorded by the conventional techniques. [Summary of the Invention] The main purpose of the present invention is to provide a method for recording continuous sound data, so as to solve the problem of poor continuity of the sound recorded by the conventional art, and further enable the recorded sound to take into account both continuity and time Delayed. In order to achieve the above-mentioned object, the continuous sound data recording method of the present invention is suitable to be performed in a computer system having a multi-threaded microprocessor, wherein the multi-threaded microprocessor is used to switch between more than one thread and When executed, the method includes: reading the continuous sound data and continuously sampling the continuous sound j data; sequentially recording the sampled data in a buffer # recording area, and using the buffered recording area When the space is insufficient, the computer system provides more than one first auxiliary thread, the first auxiliary thread is used to process the data in the buffer recording area; and a second auxiliary thread is provided, which is a young auxiliary thread. In order to record the subsequent sampling materials in §, they have been recorded in another buffer recording area. In order for those skilled in the art to understand the purpose, features and functions of the present invention

17341 Yingyeda.ptd Page 5 200428270 V. Description of the invention (3) 'Effectiveness' The following specific examples and the accompanying drawings are used to explain the present invention in detail as follows: [Embodiment] This The spirit of the invention lies in the use of multi-thread (thread) technology for continuous sound data recording, that is, by creating multiple auxiliary threads to process the data in the buffer recording area 10 separately, and respond to the processing of the buffer recording area. Event of 10 running out of space. Therefore, the present invention is suitable to be implemented in a computer system having a multi-threaded microprocessor, as shown in FIG. 2, which is a computer system-frame 0 diagram that can be used by the present invention. In the second figure, the computer system includes at least an input / output device 20, a memory 2 2, a multi-threaded microprocessor 24, and a storage device 26. The computer system refers to an electronic device (not shown) such as a personal desktop computer, a notebook personal computer, a digital voice recorder, a digital personal assistant, or a mobile phone for recording processing by a user. The following embodiments, The recording method of the continuous sound data of the present invention will be explained using a notebook personal computer. In order to simplify the drawings and descriptions, the system architecture here only shows the system components related to the present invention, and other unrelated system components are not shown in the drawings. The input / output device 20 is mainly used to receive data from the outside. Continuous β sound data, such as a sound collector (microphone), and used to play the sound data recorded by the computer system_, such as speakers (speakers) •, and the memory 2 2 can be dynamically allocated with at least one buffered record The logical structure of the area 2 2 0 and the buffer recording area 2 2 0 can be seen in FIG. 1, which is mainly used to store the data sampled by the computer system for continuous sound data; the multi-threaded microprocessor 2 4 Buffer record used to detect the memory 2 2

If

1734] Inventec.ptd Page 6 200428270 V. Description of the invention (4) Whether the sound data stored in the area 2 2 0 is full, it can be an Inte 1 series of micro-processing chips; When the thread microprocessor 2 4 determines that the sound data stored in the buffered recording area 2 2 0 of the memory 2 2 is about to be filled, the sound data stored in the buffered recording area 2 2 0 is stored in the storage device 2 In 6, the storage device 26 can be implemented by a magnetic disk device. Figure 3 is a flowchart of the method of the present invention. First, step 3 0 0 receives a continuous sound data through the input / output device 2 of the computer system as shown in FIG. 2 and continuously samples the continuous sound data. The sampling frequency can be determined by the user. Then proceed to step 3 02. In step 302, the computer system sequentially records the sampled tributary materials in a buffered recording area 2 2 0 in the memory 22, and then proceeds to step 303. In step 303, the computer system judges whether the buffer recording area 2 2 0 for storing sampling materials will be filled by the sampling data, and if so, proceeds to step 3 0 4; otherwise, returns to the Step 3 0 3. In step 304, the computer system takes out all sampling materials from the buffered recording area 2 2 0 filled with the sampled data 'and stores the taken sampling data in the storage device 26. , Then proceed to step 305. In step 305, the computer system clears the contents of the buffered recording area 2 2 0 filled with the sampled data for storage when the computer system receives the sampled data next time, and then proceeds to step 3 〇6. In step 3 06, the computer system searches for the next buffered recording area (2 2 2 or 2 2 4) from the memory 2 2 and sets it to the standby state.

] 7341 英 业 达 .ptd Page 7 200428270 V. Description of the invention (5), state, for the computer system to sequentially record the sampling data subsequently processed < in the buffer recording area that has been set to the standby state (2 2 2 or 2 2 4), and then return to step 3 0 0, so that the computer system repeatedly stores the processed sampling data until the continuous sound data is recorded. Among them, steps 304 to 305 shown in FIG. 3 can be processed in parallel with step 306, that is, the computer system processes the buffered recording area 2 2 0 filled with the sampled data on the one hand. On the other hand, another buffered recording area (2 2 2 or 2 2 4) is processed from the memory 22, so that the sampling data processed by the computer device g is continuously stored, and among them, by the The storage device 26 assists the processing of the computer system on data storage to solve the problem of discontinuous data storage, and provides a multi-threaded sound data storage technology. Therefore, the present invention can greatly shorten the processing time of the sampling data in the buffered recording area to improve the execution efficiency of the recording program; further, the buffered recording area in the processing state can be retracted in time, so that continuous sampling can be performed. It must be carried out profitably, and indirectly, the memory space of the allocated buffer record § field can be reduced, thereby saving system resources. Since this #Ming uses multi-threading technology, and the buffer recording area can be set to have a relatively small memory space, the present invention has better time delay, and this advantage is especially applicable to the occasion of real-time transmission of voice data, such as: Video conferencing, etc., and can simultaneously have the characteristics of continuity. However, the above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the scope of the essential technical content of the present invention. Essential technology of the present invention

17341 Inventec.ptd Page 8 200428270

17341 Yingyeda.ptd Page 9 2Q0428270-Simple illustration of the drawing [Simplified illustration of the drawing] Fig. 1 is a logical diagram of the buffer recording area used by the present invention. Fig. 2 is a diagram of a computer system architecture usable by the present invention. Fig. 3 is a flowchart of the method of the present invention. 10 Buffer recording area 20 I / O device 2 2 Memory 2 Multi-threaded microprocessor 26 Storage device 100 Buffer recording area data field 102 Buffer recording area status field 2 2 0 Buffer recording area-2 2 2 Buffer Recording area 2 2 4 Buffered recording area

17341 Inventec.ptd Page 10

Claims (1)

200428270 VI. Application Patent Scope 1. A method for recording continuous sound data, which is suitable to be performed in a computer system with a multi-threaded microprocessor, wherein the multi-threaded microprocessor is used to switch and execute in at least one thread The method includes at least: (a) reading the continuous sound data and continuously sampling the continuous sound data; (b) sequentially recording the sampled data in a buffer recording area; (c) in the buffer When the used space of the recording area is insufficient, the following steps are performed: (c 1) providing at least a first auxiliary thread, the first auxiliary thread is used to process the material in the buffered recording area, and (c2) providing a first Two auxiliary threads. The second auxiliary thread is used to sequentially record subsequent sampling data in another buffer recording area. 2. The continuous sound data recording method described in item 1 of the scope of patent application, wherein step (c 1) and step (c 2) can be performed in parallel. ^ 3. The method β of recording continuous sound data as described in item 1 or 2 of the scope of patent application, wherein the recording method further includes: setting the state of the buffered recording area in step (c 1) to a processing state ; And setting the state of the other buffered recording area in step (c 2) to a standby state. 4. Recording of continuous sound data as described in item 1 or 2 of the scope of patent application 17341 Inventec. Ptd Page 11 200428270 6. Method for applying for patent scope, wherein the first auxiliary thread in step (c 1) is used to perform at least the following steps: Read the data in the buffered recording area , Storing the read data in a storage device; and clearing the data in the buffer recording area, so that the buffer memory area is used for storing the next data. 5. The continuous sound data recording method as described in item 1 or 2 of the scope of patent application, wherein the continuous sound data is an analog audio signal. 6. The recording party of continuous sound data as described in item 4 of the scope of patent application, wherein the storage device is a magnetic disk device. 17341 Inventec.ptd Page 12