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LAME 3.100 alpha testing
IgorC
post Nov 8 2012, 03:29
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New build of LAME 3.100 alpha is available on http://www.rarewares.org/mp3-lame-bundle.php

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halb27
post Nov 9 2012, 07:49
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So what we've learnt is:

- For an exact comparison we should match average bitrate closely. So for instance match 3.100a2 -V2 against 3.99.5 -V1.85.

- Especially at high quality levels deviations in average bitrate are of minor concern to many users of these levels. Quality is what counts in the first place to them.

But that's no contradiction. Just let's search first for an average bitrate comparative setting before comparing.

This post has been edited by halb27: Nov 9 2012, 07:50


--------------------
lame3100m -V1 --insane-factor 0.75
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saratoga
post Nov 9 2012, 22:58
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QUOTE (halb27 @ Nov 9 2012, 02:49) *
- Especially at high quality levels deviations in average bitrate are of minor concern to many users of these levels. Quality is what counts in the first place to them.

But that's no contradiction. Just let's search first for an average bitrate comparative setting before comparing.


For what its worth, I'm perfectly happy if V2 leads to higher bitrates on difficult to encode samples if it means fewer artifacts. I think the main concern is that tweaks might boost the bitrate on samples that are already transparent, which would be a regression. I would say we should run a set of normal (that is, not known problem samples) and see if bitrates changes on those too.
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Posts in this topic
- IgorC   LAME 3.100 alpha testing   Nov 8 2012, 03:29
- - IgorC   As of bitrate for current alpha 2 it's (3.99....   Nov 8 2012, 03:59
|- - Dynamic   QUOTE (IgorC @ Nov 8 2012, 02:59) So I tr...   Nov 8 2012, 16:09
- - halb27   I tested 3.100a2 at the -V2 quality level for lead...   Nov 8 2012, 11:40
|- - lameboy   How is the LAME header written in 3.100? (I'm ...   Nov 8 2012, 15:36
- - IgorC   halb27, Before anything. Does 3.100 -V2 comparabl...   Nov 8 2012, 15:33
|- - halb27   QUOTE (IgorC @ Nov 8 2012, 16:33) ... Doe...   Nov 8 2012, 16:07
|- - IgorC   QUOTE (halb27 @ Nov 8 2012, 12:07) Averag...   Nov 8 2012, 17:11
- - halb27   For a fair comparison (in terms of average bitrate...   Nov 8 2012, 16:29
- - Dynamic   Yes, I should have made it clear that I was really...   Nov 8 2012, 17:17
- - Porcus   IgorC: 190 vs 195 is oranges vs elephants ... seri...   Nov 8 2012, 17:23
|- - IgorC   QUOTE (Porcus @ Nov 8 2012, 13:23) IgorC:...   Nov 8 2012, 18:07
|- - halb27   QUOTE (IgorC @ Nov 8 2012, 18:07) Who gua...   Nov 8 2012, 18:20
|- - IgorC   QUOTE (halb27 @ Nov 8 2012, 14:20) A 5 kb...   Nov 8 2012, 18:50
- - halb27   Average bitrate for my test set using -V5: 3.98.4:...   Nov 8 2012, 17:27
- - halb27   I finished my -V2 listening test with herding_call...   Nov 8 2012, 17:56
- - IgorC   QUOTE (halb27 @ Nov 8 2012, 13:27) Averag...   Nov 8 2012, 17:59
- - halb27   I tested 3.100a2 -V0 for the samples that were not...   Nov 8 2012, 18:40
- - halb27   OK, so the -V5 quality improvement of this sample ...   Nov 8 2012, 19:32
- - IgorC   if 5 kbps doesn't matter then try 3.99.5 V1.9 ...   Nov 8 2012, 20:52
- - halb27   3.99.5 -V1.85 yields an average bitrate of 195 kbp...   Nov 8 2012, 21:16
- - IgorC   Thank You for understanding, halb27. MPEG tests ...   Nov 8 2012, 22:07
- - shadowking   As long as problematic samples benefit then slight...   Nov 9 2012, 02:37
|- - IgorC   QUOTE (shadowking @ Nov 8 2012, 22:37) As...   Nov 9 2012, 03:09
- - shadowking   As i can tell the recent encoders are using mega-b...   Nov 9 2012, 04:13
|- - BFG   Personally, I'm less concerned about bitrate a...   Nov 9 2012, 07:05
- - halb27   So what we've learnt is: - For an exact compa...   Nov 9 2012, 07:49
|- - saratoga   QUOTE (halb27 @ Nov 9 2012, 02:49) - Espe...   Nov 9 2012, 22:58
|- - BFG   QUOTE (saratoga @ Nov 9 2012, 15:58) I wo...   Nov 9 2012, 23:32
- - Gainless   Another sample, pre-echos on the kicks with -V 2 (...   Nov 9 2012, 20:49
- - halb27   ??? IMO a selection of tracks should be used which...   Nov 10 2012, 11:16
- - Kamedo2   I'm considering a listening test of this new L...   Dec 2 2012, 07:50
|- - Gainless   QUOTE (Kamedo2 @ Dec 2 2012, 07:50) I...   Dec 2 2012, 12:05
- - IgorC   Kamedo2, Performing a full test with an early al...   Dec 2 2012, 13:53
|- - Kamedo2   QUOTE (IgorC @ Dec 2 2012, 21:53) Perform...   Dec 2 2012, 15:40
- - Kamedo2   A small a priori test of LAME 3.100a2. 3.100VBR V3...   Dec 8 2012, 19:02
|- - IgorC   QUOTE (Kamedo2 @ Dec 8 2012, 15:02) Maybe...   Dec 9 2012, 17:41
|- - Kamedo2   QUOTE (IgorC @ Dec 10 2012, 01:41) Can I ...   Dec 9 2012, 18:43
- - halb27   Wow! This looks great! So despite its alph...   Dec 8 2012, 22:03
- - IgorC   Welcome to our world. Today You clearly hear t...   Dec 9 2012, 19:09
|- - Kamedo2   QUOTE (IgorC @ Dec 10 2012, 03:09) Today ...   Dec 9 2012, 20:17
|- - Kamedo2   QUOTE (Kamedo2 @ Dec 10 2012, 04:17) Yes,...   Dec 11 2012, 15:43
- - goa pride   lame 3.100 alpha don't write parameters to tag...   Jul 25 2013, 21:07
- - polemon   Where can I download the current sources? http://...   Aug 27 2013, 07:11
|- - halb27   QUOTE (polemon @ Aug 27 2013, 08:11) Wher...   Aug 27 2013, 07:56
|- - goa pride   more than a year has passed have found flaws? I do...   Dec 31 2013, 18:56
- - Francksoy-Wizzu   Could anyone help me succeding using the current b...   Apr 23 2014, 13:20


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