Audio Compression
G.711alaw;G.711ulaw;G.722.1;G.726;MP2L2;PCM;AAC
Audio Bit rate
MP2L2: 32 kbps, 40 kbps, 48 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 144 kbps, 160 kbps, 192 kbps; AAC: 16 kbps, 32 kbps, 64 kbps;G.722.1: 16Kbps;G.711ulaw: 64Kbps; G.711alaw: 64Kbps
Audio Sampling Rate
MP2L2: 16kHz, 32kHz, 48kHz,AAC: 16kHz, 32kHz, 48kHz,PCM: 8kHz, 16kHz, 32kHz, 48kHz
Environment Noise Filtering
yes