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Real-time voice communication control

语音通信控件,集成G729A压缩算法,实时传输协议,支持一对一,一对多,多对多的实时通话,话音清晰,流畅!使用简单方便!(1) 利用多线程机制,实现录音、网络传输、放音同时进行。 (2) 网络壅塞处理,保证数据不...

Echo cancellation software

Software eliminates the sound echoes, suitable for voice calls to eliminate the echo. Code echo data obtained through the speakers and MIC voice data through analysis and comparison of the cache, use special algorithms eliminate echoes data, so as to achieve the goal of eliminating echo....

Speech signals pitch detection

For pitch detection of speech for Chinese speech, from a transcript from a male and a female, are "everyone is speaking Mandarin." Analog voice with 100~3400 band pass filter to 8kHz digital sampling rate. Take the frame length of 20ms, namely, frames up to 160 samples, fundamental frequen...

LPC4350_DemoFW

_WDWORD(0x4008609C, 0x000000F3); /* P1_7: D0 (function 3) */ _WDWORD(0x400860A0, 0x000000F3); /* P1_8: D1 (function 3) */ _WDWORD(0x400860A4, 0x000000F3); /* P1_9: D2 (function 3) */ _WDWORD(0x400860A8, 0x000000F3); /* P1_10: D3 (function 3) */ _WDWORD(0x400860AC, 0x000000F3);...

PESQ algorithm c language

The user may: 1. Use the PESQ Software to: i) understand the PESQ Algorithm; or ii) evaluate the ability of the PESQ Algorithm to perform its intended function of predicting the speech quality of a system; or iii) evaluate the computational complexity of the PESQ Algorithm, with the limitat...

DirectShow audio samples

DirectShow audio samples: using the DirectShow library for audio capture/recording, very good code as a  separate module can easily be ported to other projects, Share this with you....

Music synthesizer DE2_115_Synthesizer

This design example shows how to use the DE2-115 development board and a PS/2 keyboard and speakers to achieve the multi audio electronicsKeyboard.PS/2 keyboard analog keyboard for the input of key information. FPGA chip used to achieve the music synthesizer DE2-115,Generate audio signals of differe...

VC realize WAV file player

VC realize WAV file player, VC ++ 6.0 to prepare, the main function is to play WAV files, DWORD OpenDevice (); DWORD CloseDevice (); DWORD Play (CWnd * pParentWnd, LPCSTR pFileName); DWORD Stop (); is its main function....

AY-8910/YM2149 simple emulator/player

This emulator sound coprocessor AY8910 (YM2149). He used to play music in a retro computer ZX Spectrum, Atari, Amstrad. The emulator written in PureBasic and uses WinAPI. A good example of show the work with sound in Windows and an example of sound synthesis....

PSEQ Speech quality measurement

This Code  will  measure  speech quality between original  sound and synthesized sound. This need is based on developers of sound processing and speech coding and compressing engineers. In the  file  that  has been send,  there  is two...

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