Hauppauge HD PVR 2 - Settings Question

[Vidd]

I recently purchased the Hauppauge HD PVR 2.

In the Hauppauge Capture software, there is an Advanced menu. Under the Video Encoding section for H264 there is a Latency option with the choices of Low, Medium, and High. What effect do the different H264 Latency options have? Do I select low, medium, or high to get maximum quality?

Also, in the Advanced Settings there is the option to select the AAC audio bitrate. I checked 256 Kbps thinking the HD PVR would encode at 256 constant bit rate. But when I looked at the demuxed audio file it was variable bit rate averaging 130 Kbps. Is there anyway to force the higher AAC bit rate?

[Brad]

Higher latency probably increases the number of B-frames and perhaps the GOP length. You can record a sample with each setting and check the MediaInfo to confirm.

Higher latency implies greater efficiency which "should" provide higher quality at any given bitrate, at the cost of greater decoding requirements.


Audio.. Dunno.