CSAudioConverter - Convert Audio Files with C# and VB .NET
How to play an mp3 file into a voice call using csharp
Alvas.Audio is C# audio library which plays, records, converts and edits sound in PCM, Microsoft ADPCM, IMA ADPCM, CCITT A-Law, CCITT u-Law, GSM 6.10, MPEG Layer-3 (mp3), Dialogic VOX