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Real-time voice storage system and method based on digital signal processor (DSP) and universal serial bus (USB)

A real-time voice and storage system technology, applied in the direction of information storage, static memory, digital memory information, etc., can solve the problems of voice data sample loss, uneven storage speed, and inability to continuously save voice data, so as to avoid loss, Guaranteed continuity of effect

Active Publication Date: 2013-03-13
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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  • Description
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Problems solved by technology

However, in the process of data storage through the USB interface chip, the storage speed is not uniform. If the existing storage method is simply used, the collected voice data cannot be continuously saved, which will cause the loss of voice data samples.

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  • Real-time voice storage system and method based on digital signal processor (DSP) and universal serial bus (USB)
  • Real-time voice storage system and method based on digital signal processor (DSP) and universal serial bus (USB)
  • Real-time voice storage system and method based on digital signal processor (DSP) and universal serial bus (USB)

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] like figure 1 As shown, the circuit schematic diagram of the real-time voice storage system based on DSP of the present invention is provided, and it comprises voice signal acquisition module 1, voice signal processing module 2 and voice signal storage module 3, and voice signal acquisition module 1 is made of preprocessing circuit and voice codec module; voice signal processing module 2 is made up of DSP processor and memory, and memory includes FLASH memory and SDRAM memory; voice signal storage module 3 is made up of USB interface chip and USB interface circuit, and USB interface circuit is used for direct Connect with USB mobile storage device. The output of the shown voice codec module is connected with the input end of the DSP processor, so that the DSP processor collects the encoded voice signal; the output of the shown DSP processor is c...

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Abstract

The invention relates to a real-time voice storage system and method based on a digital signal processor (DSP) and a universal serial bus (USB). The real-time voice storage system comprises a voice signal collection module, a voice signal processing module and a voice signal storage module and is characterized in that the voice signal collection module comprises a preprocessing circuit and a voice coding and decoding module, the voice signal processing module comprises a DSP and a storage, and the voice signal storage module comprises a USB interface chip and a USB interface circuit. The real-time voice storage method is characterized in that more than 9 voice data buffer areas are adopted to store collected voice data, USB flash disk data buffer areas with the number at least two times that of the voice data buffer areas are adopted, and data stored in the voice data buffer areas are converted to be USB flash disk data. The real-time voice storage system has the advantages of being fast in storage, low in power consumption, small in volume, convenient to use and the like. The real-time voice storage method has the advantage of being high-speed, real-time and continuous in voice collection and storage, can achieve uninterrupted voice data collection without losing voice sampling points, and ensures voice recording integrity.

Description

technical field [0001] The present invention relates to a real-time voice storage system and storage method based on DSP and USB, more specifically, especially relates to a high-speed uninterrupted collection of voice signals, while voice data can be continuously and completely stored in a USB mobile device A real-time voice storage system and storage method based on DSP and USB. Background technique [0002] The DSP real-time voice signal processing system often needs to analyze and display the processed voice signal, and these complex and heavy tasks need to be performed on a PC. The above functions can be realized by directly connecting the DSP system with the PC through USB, but this solution is only applicable to the situation where there are few DSP terminals. If there are many terminals to be analyzed, each terminal is connected to a PC, which is not applicable due to the increased cost and bulky size. It is a good solution to store the voice data processed by the D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11C7/10
Inventor 李晔樊燕红姜竞赛郝秋赟马晓凤
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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