aDPCM匯編程序，包括聲音大小調節～～～～～～～～～～～～～～～～～～～～
上傳時間： 2017-08-06
上傳用戶：杜瑩12345
INTRODUCTION In the past, adding speech recording and playback capability to a product meant using a digital signal processor or a specialized audio chip. Now, using a simplified Adaptive Differential Pulse Code Modulation(aDPCM) algorithm, these audio capabilities can be added to any PICmicro device. This application note will cover the aDPCM compression and decompression algorithms, performance comparison of all PICmicro devices, and an application using a PIC16C72 micro-controller.DEFINITION OF TERMS step size -value of the step used for quantization of ana-log signals and inverse quantization of a number of steps.quantization -the digital form of an analog input signal is represented by a finite number of steps.adaptive quantization -the step size of a quantizer is dramatically changed with time in order to adapt to a changing input signal.inverse quantizer -a finite number of steps is converted into a digital representation of an analog signal.
上傳時間： 2022-06-20
上傳用戶：
電子看版廣泛的應用到工業生產領域，文中介紹了一種新型基于arm嵌入式的工業電子看板。和傳統的電子看板系統相比，增加了刷卡認證、視頻監控、語音通話。其中語音通話增強現場的管理，并能實現廣播，給現場人員提供實時培訓等功能。語音系統包括上位機及嵌入式兩部分組成，語音采用aDPCM進行壓縮并通過wifi傳輸，通過測試語音輸出清晰、沒有延遲。
上傳時間： 2013-10-30
上傳用戶：一諾88
C54X語音壓縮編碼，采用aDPCM算法，
上傳時間： 2015-03-28
上傳用戶：yan2267246
Training embedded apps to process speech may be as easy as finding the right 8-bit micro. Don t let what Rodger has to say about using an aDPCM algorithm and PWM output to generate speech to go in one ear and out the other
標簽： Training embedded process finding
上傳時間： 2014-01-26
上傳用戶：plsee
主要為用TI 的TMS320 5000系列實現基本的語音編解，如aDPCM,LPC等
上傳時間： 2013-12-11
上傳用戶：jackgao
The Audio File Library provides a uniform programming interface to standard digital audio file formats. This library allows the processing of audio data to and from audio files of many common formats (currently AIFF, AIFF-C, WAVE, NeXT/Sun .snd/.au, IRCAM, AVR, Amiga IFF/8SVX, and NIST SPHERE). The library also supports compression (currently G.711 mu-law and A-law and IMA and MS aDPCM) as well as PCM formats of all flavors (signed and unsigned integer, single- and double-precision floating point).
標簽： programming interface provides standard
上傳時間： 2014-12-06
上傳用戶：a6697238
dsp的東東，C54x用aDPCM編解碼程序.rar
標簽： dsp
上傳時間： 2013-12-22
上傳用戶：123啊
VS1003音頻解碼芯片為VS10XX系列的第三代產品，是芬蘭VLSI Solution Oy公司生產的單片MP3/WMA/MIDI解碼和aDPCM編碼芯片，它內部包含一個高性能、低功耗的DSP處理核（VSDSP），一個工作內存，一片可供用戶程序使用的5.5KB RAM，一個串行SPI總線接口，一個高質量的采樣頻率可調的過采樣DAC以及一個16位的采樣ADC.
上傳時間： 2015-09-14
上傳用戶：liglechongchong
msp430單片機聲音采集程序，采用12位ADC采樣，串口傳輸，baudrate115200；采樣數據采用aDPCM編碼格式；iar編譯環境
上傳時間： 2014-11-27
上傳用戶：lhc9102
