Voice signal processing library for VoIP applications operating on a PC such as a soft phone, etc.
Voice codecs | G.722, AMR-WB, G.711, G.729a, AMR-NB, and others |
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Packet interval | 10ms-120ms |
Quality of service | ToS field setting |
Jitter buffer controller | Dynamic/Static |
RTP/RTCP | RFC1889/1890 |
Packet loss concealment | packet loss concealment for any codecs |
Echo canceller | Cancel the echo by PC sound board |
Outband DTMF | RFC2833 |
Inband DTMF | (send only) |
Gain control | Gain control by signal processing |
Recording | WAV format |
Playing | WAV format |
Level indicator | Output to real time at the interval which specified the voice level. |
Conference | Automatic mixing control handling multi-codec |
Statistical information collection | Information about RTP packet loss, jitter etc. |
Statistical information transmission | RTCP XR(RFC3611) |
CPU | Pentium3 800MHz over |
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Memory | 256MB over |
OS | Windows XP, 2000, Vista |
Sound device | AC97 Compliant, HD-Audio Compliant |
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