If the minimum bitrate is 6 kbps per channel (as stated in opusenc.html), then minimum bitrate for stereo encoding is 6*2=12 kbps. But in fact we get a mono encoding (one channel) at 12 kbps (and even up to 30 kbps).
Quote from: Steve Forte Rio on 08 December, 2013, 05:17:34 AMIf the minimum bitrate is 6 kbps per channel (as stated in opusenc.html), then minimum bitrate for stereo encoding is 6*2=12 kbps. But in fact we get a mono encoding (one channel) at 12 kbps (and even up to 30 kbps).The quality is also minimum at 6kbps. If I have only 12kbps of bandwidth, I'd like to use that additional 6kbps to increase the audibility, rather than to get the fancy stereo effect, while retaining the minimal quality.
Can you test AAC? Particularly Apple's AAC?
Quote from: eahm on 07 December, 2013, 09:07:32 PMCan you test AAC? Particularly Apple's AAC?If you can tell me how to set it up without installing iTunes/Quicktime, I would. Personally, I don't really have any interest in AAC, it was pretty intransparent up to a high bitrate for me (the nero aac encoder) a few years ago. Haven't tested it recently though, so not going to claim anything
Is there any improvement in sound quality from 1.1 beta to the 1.1 final release? Thanks
I wish the tagging of Opus could include using more efficient image formats for album art.
Quote from: o-l-a-v on 09 December, 2013, 12:56:04 PMI wish the tagging of Opus could include using more efficient image formats for album art.Does Opus even include album art in the specification?The "advantages" of WebP are rather controversial in the first place:http://people.mozilla.org/~josh/lossy_comp...y_october_2013/
I think it actually says 6kbps is the minimum "target" bitrate. I think for low-frequency in surround sound it gets less than that, so 6kbps doesn't seem to be a technical limitation.
I'm very angry now for the Poweramp guy to not include the decoder in it's player. We've asked for that more than a year ago.
And is there an oggdropxpd-equivalent for opus available somewhere?
foo_abx 1.3.4 reportfoobar2000 v1.2.92014/01/04 01:17:48File A: D:\sample.flacFile B: D:\sample.opus01:17:48 : Test started.01:18:48 : 01/01 50.0%01:19:53 : 02/02 25.0%01:20:25 : 03/03 12.5%01:24:19 : 04/04 6.3%01:24:43 : 05/05 3.1%01:24:46 : Test finished. ---------- Total: 5/5 (3.1%)
Though there is a side effect as some distortion in low frequency range, not that noticeable on 10 ms, somewhat on 5 ms and clearly audible on 2.5 ms.
I'll try higher bitrate tommorow or so.