ADPCM汇编程序，包括声音大小调节～～～～～～～～～～～～～～～～～～～～
上传时间： 2017-08-05
上传用户：杜莹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.
上传时间： 2022-06-20
上传用户：zhengtiantong
电子看版广泛的应用到工业生产领域，文中介绍了一种新型基于arm嵌入式的工业电子看板。和传统的电子看板系统相比，增加了刷卡认证、视频监控、语音通话。其中语音通话增强现场的管理，并能实现广播，给现场人员提供实时培训等功能。语音系统包括上位机及嵌入式两部分组成，语音采用ADPCM进行压缩并通过wifi传输，通过测试语音输出清晰、没有延迟。
上传时间： 2013-10-29
上传用户：一诺88
C54X语音压缩编码，采用ADPCM算法，
上传时间： 2015-03-28
上传用户：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
标签： Training embedded process finding
上传时间： 2014-01-26
上传用户：plsee
主要为用TI 的TMS320 5000系列实现基本的语音编解，如ADPCM,LPC等
上传时间： 2013-12-11
上传用户：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).
标签： programming interface provides standard
上传时间： 2014-12-06
上传用户：a6697238
dsp的东东，C54x用ADPCM编解码程序.rar
标签： dsp
上传时间： 2013-12-22
上传用户：123啊
VS1003音频解码芯片为VS10XX系列的第三代产品，是芬兰VLSI Solution Oy公司生产的单片MP3/WMA/MIDI解码和ADPCM编码芯片，它内部包含一个高性能、低功耗的DSP处理核（VSDSP），一个工作内存，一片可供用户程序使用的5.5KB RAM，一个串行SPI总线接口，一个高质量的采样频率可调的过采样DAC以及一个16位的采样ADC.
上传时间： 2015-09-14
上传用户：liglechongchong
msp430单片机声音采集程序，采用12位ADC采样，串口传输，baudrate115200；采样数据采用ADPCM编码格式；iar编译环境
上传时间： 2014-11-27
上传用户：lhc9102
