VoiceChat only supports encoded audio sampled at 16 bits/8 kHz. In addition, it only supports 4-bit ADPCM encoding.
In conference mode, you need ( (Number of participants – 1) * 2 ) times the bandwidth.
Audio Frame Length |
Size of Audio Data (bytes) |
64 ms (minimum) |
260 |
144 ms (default) |
580 |
192 ms (maximum) |
772 |
These audio data sizes refer only to the payload. Added to this are the IP header, the UDP header, the communications library header, and the VCT library audio packet header (12 bytes).