Is the --vbr-new switch in 3.97a11 an improvement across all Vn settings?
All the discussions I've read about it, are in reference to --preset standard (-V2). My impression is that --vbr-new is a completely different algorithm to --vbr-old, and so any improvements to it will be carried through all V settings.
Correct?
Also, in watching LAME 3.97a11 do it's work, I've noticed that the qval figure has gone from 2 to 3 (compared to 3.96.1).
I'm interested because I want to encode with the V1 setting, but want to use --vbr-new.
Just out of interest (using -Vn --vbr-new -F %s %d):
V2 to V1 gives 11%/13% increase in bitrate/filesize
V2 to V0 gives 17.5%/25% increase in bitrate/filesize
Full Version: v3.97a11: --vbr-new: Improved across the board?
I'm also interested in this, though at the other end of the bitrate scale. My standard encode for my portable player is --preset 135 for ABR at about 135 kbps. My question would be:
1) Is --vbr-new ok to append to an ABR preset?
2) Should I switch to something like V5 vbr-new instead?
3) Would --vbr-new help at all at these bitrates?
I'd love to do a listening test to find the answer myself, but I suck at listening tests. I can't ABX anything above about 100 kbps, which I guess means the particular settings I use don't matter that much...
1) Is --vbr-new ok to append to an ABR preset?
2) Should I switch to something like V5 vbr-new instead?
3) Would --vbr-new help at all at these bitrates?
I'd love to do a listening test to find the answer myself, but I suck at listening tests. I can't ABX anything above about 100 kbps, which I guess means the particular settings I use don't matter that much...
I'm interested in the lower end of the bitrate spectrum too. CMIIW but it seems --vbr-new improves results for -V5 to -V7 but not -V3 and -V4. 
Link
Link
What I want to know is if --vbr-new is better than the default with V8 and V9. I tried ABXing plain V8 against V8 --vbr-new but couldn't detect a difference. Havent tried V9 yet.
Link
Link
What I want to know is if --vbr-new is better than the default with V8 and V9. I tried ABXing plain V8 against V8 --vbr-new but couldn't detect a difference. Havent tried V9 yet.
One thing I've noticed is that --vbr-new seems to introduce a greater range of mean bitrates, across the board (well, V6 to V2).
For example, I've been playing with "-V5 --vbr-new" and am getting mean bitrates between 80kbps and 160kbps. The encodes sound good, and that's all I'm concerned about - I just found the variance interesting.
For example, I've been playing with "-V5 --vbr-new" and am getting mean bitrates between 80kbps and 160kbps. The encodes sound good, and that's all I'm concerned about - I just found the variance interesting.
QUOTE (kindofblue @ Sep 5 2005, 05:24 AM)
I'm interested in the lower end of the bitrate spectrum too. CMIIW but it seems --vbr-new improves results for -V5 to -V7 but not -V3 and -V4.
Link
Link
Link
Link
One link shows this result:
http://www.foobar2000.net/divers/tests/200...a7V4results.PNG
=>improvements were noticed for -V4.
QUOTE (Klyith @ Sep 2 2005, 09:56 AM)
I'm also interested in this, though at the other end of the bitrate scale. My standard encode for my portable player is --preset 135 for ABR at about 135 kbps. My question would be:
1) Is --vbr-new ok to append to an ABR preset?
1) Is --vbr-new ok to append to an ABR preset?
No, ABR uses neither VBR-old nor VBR-new. AFAIK, ABR more or less uses the CBR algorithm but with much less restrictions for the bit reservoir.
QUOTE (guruboolez @ Sep 5 2005, 02:59 PM)
QUOTE (kindofblue @ Sep 5 2005, 05:24 AM)
I'm interested in the lower end of the bitrate spectrum too. CMIIW but it seems --vbr-new improves results for -V5 to -V7 but not -V3 and -V4.
Link
Link
Link
Link
One link shows this result:
http://www.foobar2000.net/divers/tests/200...a7V4results.PNG
=>improvements were noticed for -V4.
I stand corrected. Thank you.
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