Query common (headerless) RawAudioFormats:
ssg/16: signed, little endian, 16kHz, 16bit
ssg/8: signed, little endian, 8kHz, 16bit
ulaw/16: Mu-law compressed, little endian, 16kHz
ulaw/8: Mu-law compressed, little endian, 8kHz
alaw/16: A-law compressed, little endian, 16kHz
alaw/8: A-law compressed, little endian, 8kHz
Use RawAudioFormat.setWavHeader() to add the default WAV header; access
RawAudioFormat.hs to set header size manually.