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Fighter Beat looped (killer sample)
Porcus
post Jul 23 2012, 19:04
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QUOTE (softrunner @ Jul 23 2012, 18:55) *
QUOTE
can you nail down a freeformat@640?

If you mean "lame.exe --freeformat -b 640 *.wav", I cannot find how to decode it.


fb2k cannot play it. I am not on my home computer right now, but ... tried lame.exe --decode and then comparing the WAV's? Though, according to http://mp3decoders.mp3-tech.org/freeformat.html , older Lame couldn't decode the highest-bitrate freeformats, but MAD can. http://www.underbit.com/products/mad/



QUOTE (softrunner @ Jul 23 2012, 18:55) *
Anyway, it must be useless.


Absolutely, except possibly for this particular purpose.


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softrunner
post Jul 23 2012, 22:40
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QUOTE
Opusdec will decode at 44.1kHz, if the opus file was sourced from a 44.1kHz WAV. Maybe that's what softrunner meant.

Exactly. Surprisingly, foobar2000 decodes at 48kHz.

QUOTE
... tried lame.exe --decode and then comparing the WAV's?

It looks like it works:

d:\@Portable@\Audio\@Encoders@> lame.exe --decode test_freeformat_640.mp3
Input file is freeformat.
hip: bitstream problem, resyncing skipping 2088 bytes...
input: test_freeformat_640.mp3 (44.1 kHz, 2 channels, MPEG-1 Layer III)
output: test_freeformat_640.wav (16 bit, Microsoft WAVE)
skipping initial 1105 samples (encoder+decoder delay)
skipping final 1015 samples (encoder padding-decoder delay)
Frame# 308/308 168 kbps MS

I'll try it later.
-----------------
To all. You may not believe me, but I've passed ABX test of Vorbis Q10 (619 kbps) smile.gif


foo_abx 1.3.4 report
foobar2000 v1.1.14 beta 1
2012/07/24 00:58:35

File A: S:\320 GB HDD\Аудио-тесты\NEW\Converter\input\test.flac
File B: S:\320 GB HDD\Аудио-тесты\NEW\Converter\output\test (Vorbis q10,0).ogg

00:58:35 : Test started.
01:02:12 : 01/01 50.0%
01:04:00 : 01/02 75.0%
01:04:31 : 02/03 50.0%
01:05:51 : 03/04 31.3%
01:07:24 : 04/05 18.8%
01:08:09 : 05/06 10.9%
01:08:36 : 06/07 6.3%
01:08:59 : 07/08 3.5%
01:09:12 : 08/09 2.0%
01:10:02 : 09/10 1.1%
01:10:58 : 10/11 0.6%
01:11:39 : Test finished.

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Total: 10/11 (0.6%)

The difference in signals is that in the original sample the background flow of noise is not interrupted, but in Vorbis it is got interrupted somehow, other signals overlap it, so that I am loosing it (cannot hear it constantly).

This post has been edited by softrunner: Jul 23 2012, 22:41
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softrunner
post Jul 24 2012, 21:14
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QUOTE
can you nail down a freeformat@640?

I've met some difficulties with it. I know that the difference is there (original sounds sharper), but I can't get enought percent in abx test for posting it (as I remember, I had 9 of 10 but then made some mistakes). For me it is painfull to search this difference, so I'd better focus on testing Opus.
In Opus tests I got stuck at 200+ kbps (300+ real bitrate), but on portable player I recognize at least 224 kbps (converted in vorbis q10), so have to try it more.
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shadowking
post Jul 25 2012, 02:19
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I wonder how a hybrid format would perform on this. Do you mind trying wavpack -b256hx4 or even -b352hx4


--------------------
Wavpack -b450s0.7
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greynol
post Jul 25 2012, 02:23
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LossyWAV, too.


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Nick.C
post Jul 25 2012, 12:47
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lossyWAV (standard) yields a bitrate of 907kbit/s compared to FLAC 1013kbit/s [attached]....
Attached File(s)
Attached File  fighter_beat_loop.lossy.flac ( 893.83K ) Number of downloads: 93
 


--------------------
lossyWAV -q X -a 4 --feedback 4| FLAC -8 ~= 320kbps
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Case
post Jul 25 2012, 13:22
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I'm curious, what sound card do you have, softrunner? I remember back in the old days my Sound Blaster Audigy, that was also AC'97 compatible, mutilated the output enough to make lossy codecs much easier to ABX.
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softrunner
post Jul 27 2012, 01:57
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QUOTE
I wonder how a hybrid format would perform on this. Do you mind trying wavpack -b256hx4 or even -b352hx4

QUOTE
lossyWAV (standard) yields a bitrate of 907kbit/s compared to FLAC 1013kbit/s [attached]....

Can't pass it. For me they sound like lossless.
By the way I have ABXed Musepack q10 to be sure I have not lost my sensitivity due to listening the same sample that much.

Musepack Q10 (420 kbps)

foo_abx 1.3.4 report
foobar2000 v1.1.14 beta 1
2012/07/27 04:02:32

File A: D:\@Portable@\Audio\LossyAudioTester\input\test.flac
File B: D:\@Portable@\Audio\LossyAudioTester\output\test (Musepack q10.0).mpc

04:02:32 : Test started.
04:16:17 : Trial reset.
04:17:35 : 01/01 50.0%
04:18:35 : 02/02 25.0%
04:20:18 : 02/03 50.0%
04:20:58 : 03/04 31.3%
04:21:56 : 04/05 18.8%
04:22:43 : 05/06 10.9%
04:23:38 : 06/07 6.3%
04:24:37 : 07/08 3.5%
04:26:31 : 08/09 2.0%
04:26:58 : 09/10 1.1%
04:29:16 : 10/11 0.6%
04:29:21 : Test finished.

----------
Total: 10/11 (0.6%)

(it sounds smoothed on the background in the right channel)

QUOTE
I'm curious, what sound card do you have, softrunner?

It is just standard AC97 (ALC850).

This post has been edited by softrunner: Jul 27 2012, 02:01
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softrunner
post Dec 29 2012, 02:55
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Opus 256 kbps (326 kbps) (git version from 10.11.2012)


foo_abx 1.3.4 report
foobar2000 v1.1.16
2012/11/19 04:32:08

File A: D:\@Portable@\Audio\LossyAudioTester\output\FighterBeatLoop\FighterBeatLoop.flac
File B: D:\@Portable@\Audio\LossyAudioTester\output\FighterBeatLoop\FighterBeatLoop (Opus 256 kbps).opus

04:32:08 : Test started.
04:32:28 : 01/01 50.0%
04:32:53 : 02/02 25.0%
04:33:18 : 03/03 12.5%
04:35:05 : 03/04 31.3%
04:36:00 : 04/05 18.8%
04:37:36 : 05/06 10.9%
04:37:53 : 05/07 22.7%
04:38:14 : 06/08 14.5%
04:38:51 : 06/09 25.4%
04:39:56 : 07/10 17.2%
04:42:56 : 08/11 11.3%
04:45:31 : 09/12 7.3%
04:46:25 : 10/13 4.6%
04:47:15 : 11/14 2.9%
04:48:35 : Test finished.

----------
Total: 11/14 (2.9%)

Encoded sample sounds slightly poorer then the original one, with less amplitude of a saw-like sound.
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