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Description: 利用声卡采集数据，可惜是delphi的。- Using the sound card gathering data, what a pity is delphi.
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Size: 445440 |
Author: 李佰国 |
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Description: 其中sound.c 用于录音和回放。其中特别需要注意的是:1。目前声卡似乎不能打开全双工，所以如果fd = open("/dev/dsp", O_RDWR) ，则无法录音和回放。只能分别设置RDONLY和WRONLY。即半双工方式。否则，就是在录音的时候可以听见，但是无法回放。分析下来似乎是IIC总线中只分配了一个通道给声卡，或者是只启用了一个通道，所以无法录音和放音同步进行。解决方法就是分别以RDONLY方式打开进行录音和WRONLY方式打开进行放音。
Sound1.c用于将录音保存在test.wav文件中，并利用cast test.wav > /dev/sound/dsp回放文件。此处需要注意的是，录音频率必须是44100才能正确回放。否则就会出现类似快放的效果。分析应该是cast方式利用了dsp的默认播放频率44100，所以如果录音的时候低于这个频率，这放的时候就会快放。
此外，设置采样率的时候必须设置成16bit，否则会提示出错。原因尚不知道，估计是与声卡有关。
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Size: 3072 |
Author: 杨浩 |
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Description: 基于声卡的测试系统,可以录音并且保存声音文件,可以把声音文件回放,可以离线和在线做波形和频谱-Test system based on the sound card, you can save recordings and sound files, sound files can be playback, you can make offline and online waveform and spectrum
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Size: 161792 |
Author: 肖强 |
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Description: sound LINUX qt the functional integrity standardized format
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Size: 45056 |
Author: 叶林 |
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Description: devloped under vxwork, support ess sound card. driver library, include datasheet.
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Size: 1058816 |
Author: Donghua Gu |
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Description: 利用麦克风捕获声音，并显示其波形和频谱图-Use a microphone to capture sound, and display its waveform and frequency spectrum
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Size: 9264128 |
Author: 飞哥 |
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Description: 用vc制作的一个声卡测试软件,包括播放和录音-Vc produced with a sound card test software, including playback and recording
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Size: 101376 |
Author: wuxl |
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Description: C51语音播放源码
将语音按占空比放出。原语音为8位8KHz，则125us一个字节，现时钟主频近2MHz，周期为0.5us，这样一个字节占250个周期，而字节8位为256，可以近似为256个周期，实验应放在定时器中产生。
如果倍频，每个字节就可以产生两个波形，音质应更好
-C51 voice broadcast voice-source release by the duty cycle. The original voice for the 8-bit 8KHz, while 125us a byte, it is near the clock frequency 2MHz, cycle 0.5us, accounting for a 250-byte cycle, and 8 bytes for the 256, can be approximately 256 cycles, the experiment produced should be placed on timers. If the octave, each byte can have two waveforms, sound quality should be better
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Size: 20480 |
Author: 啊买噶的 |
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Description: linux声卡编程 可以播放.wav格式的音乐。-linux sound card can play programming. wav format music.
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Size: 1024 |
Author: 谦 |
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Description: 这是一个播放声音文件示例，可作为告警信号用-This is a sample to play a sound file can be used as alarm signals
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Size: 5120 |
Author: jhon wang |
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Description: 一个录音程序。
将声音文件存为wav文件。-A sound recording program. Sound files will be saved as wav files.
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Size: 19456 |
Author: 包星 |
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Description: Brew手机开发中，播放音频文件的程序。以前总结时候留下的。希望对后来者有所帮助-Brew sound
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Size: 295936 |
Author: Fox |
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Description: 一个C++的语音识别系统，可用，值得参考-Sound
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Size: 3787776 |
Author: liubin |
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Description: labview 声卡配置实例，利用函数选板里提供的函数配置好参数，连线即可-labview examples of the sound card configuration
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Size: 16384 |
Author: 李明 |
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Description: VB开发的简单DWL声音频谱分析仪，也就是声音示波器，直接加载WAV文件或通过麦克风就可实时分析声音信息，并显示出声音频谱图。-VB to develop a simple spectrum analyzer DWL sound, that is, the voice of oscilloscope, load WAV files directly or through a microphone can be the voice of real-time analysis of information, and shows that the sound frequency spectrum.
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Size: 27648 |
Author: 553 |
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Description: 声卡的初始化，配置声音输入，读取声音输入-Sound card initialization, configuration, voice input, voice input to read
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Size: 135168 |
Author: 陈丹丹 |
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Description: symbian s60 2rd 音频处理 例子可以运行
sound-symbian s60 2rd sound
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Size: 30720 |
Author: 王传祥 |
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Description: Learn how to play an instantaneous sound for the iPhone (for example sound effect for clicks)
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Size: 2246656 |
Author: Quenzo |
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Description: C# 开发 wince 下播放声音文件
-C# Developer to play a sound file, under wince
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Size: 1024 |
Author: gaigai |
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Description: 介绍了matlab图形和声音的设计与实现
-Describes the matlab graphics and sound design and implementation
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Size: 1882112 |
Author: cyh |
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