What are the CPU requirements for Ultra-Videoconferencing?
The CPU requirements depend entirely on what modes of transport and coding are involved. Ultra-Videoconferencing requires fairly minimal CPU power for audio-only transport, but requires PIII-1GHz or better for DV or JPEG decoding, and greater power for HD-SDI video (with a custom kernel to provide 1 kHz scheduler). • How much network bandwidth is needed for the various modes supported by Ultra-Videoconferencing? PCM audio with default sampling (44.1 kHz, 16 bit) requires approximately 706 kbps per channel. DV camera output (audio and video) consumes approximately 25 Mbps; JPEG-encoded full-frame video is similar. Uncompressed analog or dc1394 video at full-frame requires anywhere from 148-270 Mbps depending on colorspace employed; this may be reduced to as low as 37 Mbps by selecting quarter-frame size with -w 320 -h 240. Note also the importance of increasing your IP buffer on the receiving machine, as described below. • Is Ultra-Videoconferencing RTP-compliant? No. Ultra-Videoconfere
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