LAME 3.100 alpha testing Options

[IgorC]

New build of LAME 3.100 alpha is available on http://www.rarewares.org/mp3-lame-bundle.php

Changelog

[Kamedo2]

A small a priori test of LAME 3.100a2.
3.100VBR V3.6, 3.100CBR q0 160kbps, 3.99.5 V3.4

CODE

% This format is compatible with my graphmaker, as well as ff123's FRIEDMAN.
3.100VBR    3.100CBR    3.99VBR    
4.700    4.100    4.500    
4.500    4.300    4.100    
4.200    3.900    4.400    
5.000    4.200    4.500    
5.000    4.200    4.400    
%samples    Reunion Blues    Jazz
%samples    French    Speech
%samples    undelete    Pops
%samples    Dimmu Borgir    Metal
%samples    Run up    Pops

CODE

3.100VBR    3.100CBR    3.99VBR    
176388    160357    177434
171927    160292    178264
181507    160327    180015
164784    160569    165735
161089    160553    159509
Average bitrate:
171139    160420    172191
Calibrated bitrate:
160742    160044    159764

Samples used:last five samples of http://www.hydrogenaudio.org/forums/index....showtopic=98003
The number of sample is only 5, so it's not a very trustworthy data. Maybe it would be very nice if someone reproduce the results, especially the VBR vs VBR part.

[IgorC]

Maybe it would be very nice if someone reproduce the results, especially the VBR vs VBR part.

Can I ask You what kind of artifacts do You hear on "Reunion Blues"? I got totally opposite results.
Probably we're listening to different instruments there. While there are some misc. artifacts here and there, the main issue I hear is the distortion on hi-hat.

Well, we are two different listeners with different hardware.

Here's my result for this sample.
http://www.mediafire.com/?cyjfaoam2b9kmhq

CODE

ABC/HR Version 1.1 beta 2, 18 June 2004
Testname:

1L = D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.100a2.wav
2L = D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.99.5.wav

---------------------------------------
General Comments:

---------------------------------------
1L File: D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.100a2.wav
1L Rating: 4.4
1L Comment: The artifacts sound like flush water on hi-hat.
---------------------------------------
2L File: D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.99.5.wav
2L Rating: 4.7
2L Comment:
---------------------------------------
ABX Results:
D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.100a2.wav vs D:\Audio\3.100a2\01 Reunion Blues\01 reunion blues 3.99.5.wav
5 out of 5, pval = 0.031

I've performed this test twice and it's the same.

This post has been edited by IgorC: Dec 9 2012, 17:43

[Kamedo2]

Can I ask You what kind of artifacts do You hear on "Reunion Blues"? I got totally opposite results.
Probably we're listening to different instruments there. While there are some misc. artifacts here and there, the main issue I hear is the distortion on hi-hat.

What I've noticed is a low frequency collapse in left channel, piano, which is sometimes found in libfaac. The artifact is very slight.

I've performed this test twice and it's the same.

I tried to reproduce the result, but failed to do so. This time, I used Pioneer SE-DHP800-2.

CODE

ABC/HR for Java, Version 0.53a, 10 12 2012
Testname: 25rbmp3160k

Tester:

1R = C:\d\autoencode6\sound_out\25rb_.lame3099_v34.mp3
2R = C:\d\autoencode6\sound_out\25rb_.lame3100_v36.mp3
3R = C:\d\autoencode6\sound_out\25rb_.lame3100_160k.mp3

Ratings on a scale from 1.0 to 5.0

---------------------------------------
General Comments: I've noticed a low frequency distortion in piano.
---------------------------------------
3R File: C:\d\autoencode6\sound_out\25rb_.lame3100_160k.mp3
3R Rating: 4.2
3R Comment: Hi-hat distortions and less clear piano and other low freq sound.
---------------------------------------

ABX Results:
Original vs C:\d\autoencode6\sound_out\25rb_.lame3100_160k.mp3
12 out of 15, pval = 0.017
Original vs C:\d\autoencode6\sound_out\25rb_.lame3100_v36.mp3
9 out of 15, pval = 0.303
Original vs C:\d\autoencode6\sound_out\25rb_.lame3099_v34.mp3
10 out of 15, pval = 0.15


---- Detailed ABX results ----
Original vs C:\d\autoencode6\sound_out\25rb_.lame3100_160k.mp3
Playback Range: 00.000 to 30.000
2:01:03 AM p 1/1 pval = 0.5
2:02:29 AM p 2/2 pval = 0.25
2:03:22 AM f 2/3 pval = 0.5
2:03:46 AM p 3/4 pval = 0.312
2:03:58 AM p 4/5 pval = 0.187
2:04:21 AM p 5/6 pval = 0.109
2:04:32 AM p 6/7 pval = 0.062
2:04:43 AM p 7/8 pval = 0.035
2:04:57 AM f 7/9 pval = 0.089
2:05:07 AM p 8/10 pval = 0.054
2:05:39 AM p 9/11 pval = 0.032
2:05:49 AM p 10/12 pval = 0.019
2:06:01 AM p 11/13 pval = 0.011
2:06:24 AM p 12/14 pval = 0.0060
2:06:51 AM f 12/15 pval = 0.017

Original vs C:\d\autoencode6\sound_out\25rb_.lame3100_v36.mp3
Playback Range: 00.000 to 30.000
2:20:51 AM f 0/1 pval = 1.0
2:21:03 AM f 0/2 pval = 1.0
2:21:50 AM p 1/3 pval = 0.875
2:22:21 AM p 2/4 pval = 0.687
2:22:53 AM p 3/5 pval = 0.5
2:23:21 AM p 4/6 pval = 0.343
2:23:51 AM f 4/7 pval = 0.5
2:24:16 AM p 5/8 pval = 0.363
2:24:36 AM f 5/9 pval = 0.5
2:25:14 AM p 6/10 pval = 0.376
2:25:25 AM p 7/11 pval = 0.274
2:25:39 AM f 7/12 pval = 0.387
2:26:04 AM p 8/13 pval = 0.29
2:26:22 AM f 8/14 pval = 0.395
2:27:01 AM p 9/15 pval = 0.303

Original vs C:\d\autoencode6\sound_out\25rb_.lame3099_v34.mp3
Playback Range: 00.000 to 30.000
2:12:19 AM f 0/1 pval = 1.0
2:13:18 AM p 1/2 pval = 0.75
2:13:46 AM p 2/3 pval = 0.5
2:15:01 AM p 3/4 pval = 0.312
2:15:31 AM f 3/5 pval = 0.5
2:15:47 AM p 4/6 pval = 0.343
2:16:03 AM f 4/7 pval = 0.5
2:16:24 AM p 5/8 pval = 0.363
2:16:41 AM p 6/9 pval = 0.253
2:16:54 AM f 6/10 pval = 0.376
2:17:07 AM p 7/11 pval = 0.274
2:17:40 AM f 7/12 pval = 0.387
2:18:06 AM p 8/13 pval = 0.29
2:18:20 AM p 9/14 pval = 0.211
2:18:59 AM p 10/15 pval = 0.15