Have tried these two builds on transients samples at 64 kbps.
https://people.xiph.org/~greg/opus-tools_exp_tfsel5.zip (have called it as transients2)
https://people.xiph.org/~greg/opus-tools_exp_32024cb5.zip (transients1)
Velvet sample. T2 and T1 have the same bitrate and less or more the same quality.
ABC/HR for Java, Version 0.53a, 25 August 2012
Testname:
Tester: IgorC
1L = D:\Opus\opus_transients_TEST\Samples for transients2\01 Velvet\velvet_TRANSIENTS_1.wav
2R = D:\Opus\opus_transients_TEST\Samples for transients2\01 Velvet\velvet_TRANSIENTS_2.wav
Ratings on a scale from 1.0 to 5.0
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General Comments:
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1L File: D:\Opus\opus_transients_TEST\Samples for transients2\01 Velvet\velvet_TRANSIENTS_1.wav
1L Rating: 3.0
1L Comment:
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2R File: D:\Opus\opus_transients_TEST\Samples for transients2\01 Velvet\velvet_TRANSIENTS_2.wav
2R Rating: 3.0
2R Comment:
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ABX Results:
Fatboy. T2 - 92 kbps, T1 - 90 kbps.
ABC/HR for Java, Version 0.53a, 25 August 2012
Testname:
Tester: IgorC
1L = D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_2.wav
2R = D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_1.wav
Ratings on a scale from 1.0 to 5.0
---------------------------------------
General Comments:
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1L File: D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_2.wav
1L Rating: 3.5
1L Comment:
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2R File: D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_1.wav
2R Rating: 3.3
2R Comment: The strange clicking-like pulse during the first second.
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ABX Results:
D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_2.wav vs D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_1.wav
5 out of 5, pval = 0.031
---- Detailed ABX results ----
D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_2.wav vs D:\Opus\opus_transients_TEST\Samples for transients2\02 Fatboy\fatboy_TRANSIENTS_1.wav
Playback Range: 00.000 to 29.206
8:20:04 PM p 1/1 pval = 0.5
8:20:06 PM p 2/2 pval = 0.25
8:20:08 PM p 3/3 pval = 0.125
8:20:14 PM p 4/4 pval = 0.062
8:20:16 PM p 5/5 pval = 0.031
EIG. T2 and T1 have the same bitrate.
ABC/HR for Java, Version 0.53a, 25 August 2012
Testname:
Tester: IgorC
1L = D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS2.wav
2R = D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS1.wav
Ratings on a scale from 1.0 to 5.0
---------------------------------------
General Comments:
---------------------------------------
1L File: D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS2.wav
1L Rating: 3.0
1L Comment:
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2R File: D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS1.wav
2R Rating: 3.2
2R Comment: Less clicking.
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ABX Results:
D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS2.wav vs D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS1.wav
5 out of 5, pval = 0.031
---- Detailed ABX results ----
D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS2.wav vs D:\Opus\opus_transients_TEST\Samples for transients2\03 EIG\eig_TRANSIENTS1.wav
Playback Range: 00.000 to 15.000
8:58:18 PM p 1/1 pval = 0.5
8:58:23 PM p 2/2 pval = 0.25
8:58:30 PM p 3/3 pval = 0.125
8:58:35 PM p 4/4 pval = 0.062
8:58:40 PM p 5/5 pval = 0.031
T2 was better than T1 only on Fatboy sample while also increases bitrate for it a bit.