If its a cbr only problem, then it would be also intresting to know at which bitrate it dissapears, if it dissapears.
The problem is still obvious at 160kbps, but it seems to disappear at 192 kbps.
I tried quickly the last 1.5 seconds of my "the first 3 s" clip of the provided sample (I set the additional offset to 1500 ms in the ABC-HR Java settings) using the following encoding settings:
LAME 3.98b6 -b 160 and -b 192
LAME 3.97 -b 160 and -b 192
LAME 3.90.3 -b 160 -h and -b 192 -h
ABC/HR for Java, Version 0.52b, 30 December 2007
Testname: CBR problem
Tester: Alex B
1R = U:\test\LAME_CBR_problem\3s_clip_3.98b_160.wav
2R = U:\test\LAME_CBR_problem\3s_clip_3.98b_192.wav
3R = U:\test\LAME_CBR_problem\3s_clip_3.97_192.wav
4R = U:\test\LAME_CBR_problem\3s_clip_3.90.3_160.wav
5L = U:\test\LAME_CBR_problem\3s_clip_3.90.3_192.wav
6L = U:\test\LAME_CBR_problem\3s_clip_3.97_160.wav
Ratings on a scale from 1.0 to 5.0
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General Comments:
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1R File: U:\test\LAME_CBR_problem\3s_clip_3.98b_160.wav
1R Rating: 3.0
1R Comment: the problem is obvious
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2R File: U:\test\LAME_CBR_problem\3s_clip_3.98b_192.wav
2R Rating: 4.3
2R Comment: some additional high frequency noise (similar to tape hiss)
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6L File: U:\test\LAME_CBR_problem\3s_clip_3.97_160.wav
6L Rating: 3.0
6L Comment: the problem is obvious
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ABX Results:
Original vs U:\test\LAME_CBR_problem\3s_clip_3.90.3_160.wav
6 out of 8, pval = 0.144
Original vs U:\test\LAME_CBR_problem\3s_clip_3.98b_192.wav
7 out of 8, pval = 0.035
Original vs U:\test\LAME_CBR_problem\3s_clip_3.97_192.wav
4 out of 8, pval = 0.636
Original vs U:\test\LAME_CBR_problem\3s_clip_3.90.3_192.wav
2 out of 8, pval = 0.964
---- Detailed ABX results ----
Original vs U:\test\LAME_CBR_problem\3s_clip_3.90.3_160.wav
Playback Range: 00.776 to 01.221
11:35:22 AM p 1/1 pval = 0.5
11:35:36 AM p 2/2 pval = 0.25
11:35:44 AM p 3/3 pval = 0.125
11:35:56 AM p 4/4 pval = 0.062
11:36:00 AM p 5/5 pval = 0.031
11:36:08 AM f 5/6 pval = 0.109
11:36:17 AM f 5/7 pval = 0.226
11:36:30 AM p 6/8 pval = 0.144
Original vs U:\test\LAME_CBR_problem\3s_clip_3.98b_192.wav
Playback Range: 00.744 to 01.496
11:12:21 AM f 0/1 pval = 1.0
11:13:50 AM p 1/2 pval = 0.75
11:14:14 AM p 2/3 pval = 0.5
11:14:40 AM p 3/4 pval = 0.312
11:16:00 AM p 4/5 pval = 0.187
Playback Range: 00.000 to 00.469
11:17:01 AM p 5/6 pval = 0.109
Playback Range: 00.864 to 01.226
11:18:07 AM p 6/7 pval = 0.062
11:19:37 AM p 7/8 pval = 0.035
Original vs U:\test\LAME_CBR_problem\3s_clip_3.97_192.wav
Playback Range: 00.000 to 00.602
11:39:42 AM f 0/1 pval = 1.0
11:40:02 AM p 1/2 pval = 0.75
11:40:18 AM p 2/3 pval = 0.5
11:40:50 AM f 2/4 pval = 0.687
11:41:10 AM p 3/5 pval = 0.5
11:41:43 AM f 3/6 pval = 0.656
11:42:36 AM f 3/7 pval = 0.773
11:42:48 AM p 4/8 pval = 0.636
Original vs U:\test\LAME_CBR_problem\3s_clip_3.90.3_192.wav
Playback Range: 00.720 to 01.202
11:27:53 AM f 0/1 pval = 1.0
11:27:58 AM f 0/2 pval = 1.0
11:28:17 AM p 1/3 pval = 0.875
11:29:21 AM f 1/4 pval = 0.937
11:29:39 AM f 1/5 pval = 0.968
11:30:27 AM f 1/6 pval = 0.984
11:31:20 AM f 1/7 pval = 0.992
11:31:38 AM p 2/8 pval = 0.964