Request

Index Word	Description
0	Header code [0x00030140]
1	u8, encoding (see here for types)
2	u8, sample rate (see here for types)
3	u32, base offset for audio data in sharedmem (Normally zero).
4	u32, size of the audio data in sharedmem (Normally sharedmem_size-4, since the base offset is normally 0 and offset-field is at sharedmem_size-4).
5	u8, loop at end of buffer (0 = stop, non-zero = loop).

Response

Index Word	Description
0	Header code
1	Result code