根据指定的缓冲区数据wavehead 检验是否a/u law格式。-according to the specified data buffer wavehead test whether a / u law format.

一个把采集到的wave数据保存成wav文件的小程序，没多大价值，只是测试时用到-A wave of the collected data into a wav file of small procedures, not much value, is only used in testing