基于linux的声卡驱动测试程序,用来测试录音和播放-Linux sound card drivers based on test procedures to test the recording and playback

关于音频接口基本程序的实验报告，有两个实验，一个是播放wav格式的音乐，另一个是可以实现先录音几秒再放音的程序-a report about audio ioctl,includes two parts one is designed to Play wav format of music,the other can record a few seconds of sound and then play it.

oss驱动下的播放和录音程序，录音时可以选择录音频率，声道，量化位数；相应的播放程序可以识别声音文件，设置声卡参数进行播发。-oss driven playback and recording procedures, recording can choose to record the frequency, channel, quantization bits player can identify the corresponding sound files, set the paramete

调用Linux系统的ALSA声音系统API，完成PCM格式的wav文件的录音和播放。-these codes are capable to record sound into wavfile in PCM format and play wavfile in PCM format by callling ALSA API on Linux platform.

嵌入式linux平台上利用alsa API录制声音并保存成wav格式(Recording sound with alsa API on Embedded Linux platform and saving it into WAV format)