Audio with HuffyUV

[gibverse]

I have been doing some HuffyUV captures lately. In the end, I either create MPEG-1 files or Divx with MP3 audio. At the capture phase, I’ve been using PCM for audio, but feel it is wasteful. I was wondering if there is a Huffy or something similar for audio.

Thanks,
John

[Sciascia]

I would think that you would have problems with compressing audio and video at the same time. There is allready a lot of strain on the CPU during capture. I understand that you would want a low compressin codec, but I have never seen one that would give you the results that you are looking for.

[Technoid]

Well....

I do think he has a point here!!

There is no good lossles compression algorithm for sound!!

Somethimes when I capture, the audio data ends up bigger than the video data or equal because I cant find a good compression algorithm..

[polonius]

No lossless audio codec

There is at least one lossless audio codec, it's called SHN (SHorteN), which hardcare audiophiles use to trade digital bootlegs of concerts. However, even with the powerful pattern matching capabilities of that codec (I don't know if it could even compress audio alone in real-time) it only gets 2:1 on average. Then remember that in an AVI the video is synchronized with the audio track. You need the audio track to maintain a constant bitrate for this to work. The only reason HuffYUV can work as a lossless codec is because it does not have to maintain a constant bitrate. Every frame is compressed as far as it can. If you absolutely must compress the audio, use ADPCM. It is lossy, but not very. And it keeps a constant bitrate. However, I recommend that you accept uncompressed PCM audio. That's just the way it's gotta be.