问题
I have a stream of u-Law compressed PCM data I am extracting from a Camera, I need to play this out the speakers? Anybody know how? I've tried decoding the u-Law into normal WAV Data and then use SoundPlayer but it never seems to work! Always SoundPlayer only supports PCM Data?
I know the sounds ok, because I have saved it to a file (using a custom createWavHeader method) and iTunes can play it.
回答1:
Windows comes with an ACM codec to convert u-law to PCM. You can use NAudio and use the WaveFileReader and the WaveFormatConversionStream to get a PCM stream you can play easily.
回答2:
Similarly, there is a freeware library lizPlay providing PCM playing capabilities. Worth considering as developers of lizPlay pay special attention to ensure there is a version that is free of patent infringement issues.
来源：https://stackoverflow.com/questions/1087763/play-pcm-data-in-net-framework-2