Hi again, I was just looking at reviews on vorbis and reading some listening test results when I came across several web sites that were saying something about Vorbis quality -2. From what I read a few programs have Vorbis going down to quality -2 and I even think hydrogen audio forums mentions it in a speech compression topic. Does this quality really exist and has anyone even heard of it? I doubt it's in the standard, but then again it just might be. Has anyone heard of it or even so much as tested it at some point? Does this quality -2 setting sound better at 32KBPS or any low bitrate than its quality -1 alternatives? All I know at this point is that some software developers have implemented it, and that according to hydrogen audio forums topic on speech compression quality -2 gave 32KBPS stereo on 44.1KHZ files and 16KBPS mono at the same sampling rate. I actually don't think I believe those bitrates to be true, perhaps 40KBPS stereo and 28KBPS mono. I am very curious about this. Any info worth knowing? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/vorbis/attachments/20071027/c306c365/attachment.htm
On Sat, Oct 27, 2007 at 04:34:57PM -0500, Raymond Grote wrote:> I was just looking at reviews on vorbis and reading some listening test > results when I came across several web sites that were saying something > about Vorbis quality -2. From what I read a few programs have Vorbis going > down to quality -2 and I even think hydrogen audio forums mentions it in a > speech compression topic. Does this quality really exist and has anyone > even heard of it?It's part of the aoTuV tunings. Unfortunately, the latest is aoTuV beta 5 based on Vorbis 1.1.2. I don't think anyone's ported them to 1.2.0. http://www.geocities.jp/aoyoume/aotuv/ Personally, I find q=-1.001 using aoTuV b5 is very useable for streaming at about 45kbps. -- Paul Martin <pm@nowster.org.uk>
"Raymond Grote" <musicalman1@comcast.net> writes:> -2. From what I read a few programs have Vorbis going down to quality > -2 and I even think hydrogen audio forums mentions it in a speech > compression topic. Does this quality really exist and has anyone even > heard of it?They are talking about the aoTuV branch of Vorbis: http://wiki.hydrogenaudio.org/index.php?title=AoTuV Try it out for yourself. Charles -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 193 bytes Desc: not available Url : http://lists.xiph.org/pipermail/vorbis/attachments/20071027/8029e913/attachment.pgp