adPCM匯編程序，包括聲音大小調(diào)節(jié)～～～～～～～～～～～～～～～～～～～～
上傳時(shí)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(shí)間： 2022-06-20
上傳用戶：
電子看版廣泛的應(yīng)用到工業(yè)生產(chǎn)領(lǐng)域，文中介紹了一種新型基于arm嵌入式的工業(yè)電子看板。和傳統(tǒng)的電子看板系統(tǒng)相比，增加了刷卡認(rèn)證、視頻監(jiān)控、語(yǔ)音通話。其中語(yǔ)音通話增強(qiáng)現(xiàn)場(chǎng)的管理，并能實(shí)現(xiàn)廣播，給現(xiàn)場(chǎng)人員提供實(shí)時(shí)培訓(xùn)等功能。語(yǔ)音系統(tǒng)包括上位機(jī)及嵌入式兩部分組成，語(yǔ)音采用adPCM進(jìn)行壓縮并通過(guò)wifi傳輸，通過(guò)測(cè)試語(yǔ)音輸出清晰、沒(méi)有延遲。
標(biāo)簽： Wifi 電子 語(yǔ)音 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-10-30
上傳用戶：一諾88
C54X語(yǔ)音壓縮編碼，采用adPCM算法，
上傳時(shí)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(biāo)簽： Training embedded process finding
上傳時(shí)間： 2014-01-26
上傳用戶：plsee
主要為用TI 的TMS320 5000系列實(shí)現(xiàn)基本的語(yǔ)音編解，如adPCM,LPC等
標(biāo)簽： 5000 TMS 320 語(yǔ)音編解
上傳時(shí)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(biāo)簽： programming interface provides standard
上傳時(shí)間： 2014-12-06
上傳用戶：a6697238
dsp的東東，C54x用adPCM編解碼程序.rar
標(biāo)簽： dsp
上傳時(shí)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(chǎn)品，是芬蘭VLSI Solution Oy公司生產(chǎn)的單片MP3/WMA/MIDI解碼和adPCM編碼芯片，它內(nèi)部包含一個(gè)高性能、低功耗的DSP處理核（VSDSP），一個(gè)工作內(nèi)存，一片可供用戶程序使用的5.5KB RAM，一個(gè)串行SPI總線接口，一個(gè)高質(zhì)量的采樣頻率可調(diào)的過(guò)采樣DAC以及一個(gè)16位的采樣ADC.
上傳時(shí)間： 2015-09-14
上傳用戶：liglechongchong
msp430單片機(jī)聲音采集程序，采用12位ADC采樣，串口傳輸，baudrate115200；采樣數(shù)據(jù)采用adPCM編碼格式；iar編譯環(huán)境
標(biāo)簽： msp 430 單片機(jī) 聲音采集
上傳時(shí)間： 2014-11-27
上傳用戶：lhc9102
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