My personal audio test
2015-11-20 15:09:09
I was searching for a bitrate that will be transparent for me at lower bitrate. I always encode my song to AAC at 256 kbps without doing any real abx test. So when I was searching for the lowest bitrate that can be transparent many people say that ~128 kbps AAC should be transparent but it doesn't look that way to me. So I encode one of my fav song to 4 different codec with different bitrate(making them become similar in bitrate is such a pain so just leave it there) so I would like to share the result of the test with all of you. Apple AAC @ 203 kbps (5.87mb) foo_abx 2.0.1 report foobar2000 v1.3.9 2015-11-20 22:20:27 File A: 01. yuiko — Awake.flac SHA1: 35140ac2c8edc74a8681be43878c30abf6d700ec File B: 01 - Awake.m4a SHA1: b35eb40e53325ec2a7b591ea13401300066a01ba Used DSPs: Equalizer Output: DS : Primary Sound Driver Crossfading: NO 22:20:27 : Test started. 22:21:23 : 00/01 22:22:06 : 01/02 22:22:25 : 02/03 22:23:05 : 02/04 22:23:43 : 03/05 22:24:19 : 04/06 22:24:58 : 05/07 22:25:41 : 06/08 22:26:31 : 07/09 22:27:09 : 07/10 22:27:48 : 08/11 22:28:32 : 09/12 22:29:10 : 10/13 22:29:46 : 11/14 22:30:22 : 12/15 22:30:57 : 13/16 22:31:34 : 13/17 22:32:12 : 13/18 22:32:55 : 14/19 22:33:33 : 15/20 22:33:33 : Test finished. ---------- Total: 15/20 Probability that you were guessing: 2.1% -- signature -- 8d1293e851f8fcc931fd11d68f2cb6ac0b073c5c Lame MP3 @ 173 kbps (5.05mb) foo_abx 2.0.1 report foobar2000 v1.3.9 2015-11-20 22:09:45 File A: 01. yuiko — Awake.flac SHA1: 35140ac2c8edc74a8681be43878c30abf6d700ec File B: 01 - Awake.mp3 SHA1: 0e0483a93554d9018e864872a6c2c080446ddf40 Output: DS : Primary Sound Driver Crossfading: NO 22:09:45 : Test started. 22:10:23 : 01/01 22:10:45 : 02/02 22:11:19 : 03/03 22:11:35 : 04/04 22:12:10 : 04/05 22:12:45 : 05/06 22:13:34 : 06/07 22:13:50 : 07/08 22:14:10 : 07/09 22:14:27 : 08/10 22:14:43 : 09/11 22:15:02 : 10/12 22:15:19 : 11/13 22:15:35 : 12/14 22:15:55 : 13/15 22:16:30 : 14/16 22:17:11 : 14/17 22:17:24 : 15/18 22:17:42 : 16/19 22:17:58 : 17/20 22:17:58 : Test finished. ---------- Total: 17/20 Probability that you were guessing: 0.1% -- signature -- 93adc8bce5409e8b91283472848c75db163f787a Musepack @ 193 kbps (5.16mb) foo_abx 2.0.1 report foobar2000 v1.3.9 2015-11-20 22:35:04 File A: 01. yuiko — Awake.flac SHA1: 35140ac2c8edc74a8681be43878c30abf6d700ec File B: 01 - Awake.mpc SHA1: d5969922590d303bb4f3d159a6aba99066025eec Used DSPs: Equalizer Output: DS : Primary Sound Driver Crossfading: NO 22:35:04 : Test started. 22:35:56 : 01/01 22:36:38 : 01/02 22:37:13 : 02/03 22:37:52 : 03/04 22:38:29 : 04/05 22:39:07 : 05/06 22:39:42 : 06/07 22:40:17 : 07/08 22:41:05 : 08/09 22:41:45 : 08/10 22:42:33 : 09/11 22:45:59 : 10/12 22:46:35 : 10/13 22:47:14 : 11/14 22:47:53 : 12/15 22:48:42 : 13/16 22:49:20 : 14/17 22:50:00 : 15/18 22:50:55 : 16/19 22:51:52 : 17/20 22:51:52 : Test finished. ---------- Total: 17/20 Probability that you were guessing: 0.1% -- signature -- 2024f1c01b068b97fa92da93c950c21946b23a0c Opus @ 170 kbps (5.09mb) foo_abx 2.0.1 report foobar2000 v1.3.9 2015-11-20 17:03:54 File A: 01. yuiko — Awake.flac SHA1: 35140ac2c8edc74a8681be43878c30abf6d700ec File B: 01 - Awake.opus SHA1: c404ed81492e61e070f1beb2afa8ee3eee5929ac Used DSPs: Equalizer, Resampler (dBpoweramp/SSRC) Output: DS : Primary Sound Driver Crossfading: NO 17:03:54 : Test started. 17:04:48 : 01/01 17:05:25 : 02/02 17:06:10 : 03/03 17:06:46 : 04/04 17:07:25 : 05/05 17:08:19 : 06/06 17:08:59 : 07/07 17:09:35 : 08/08 17:10:10 : 08/09 17:10:46 : 09/10 17:11:23 : 10/11 17:12:01 : 11/12 17:12:35 : 12/13 17:13:13 : 13/14 17:13:29 : 14/15 17:14:05 : 15/16 17:14:40 : 16/17 17:15:18 : 17/18 17:15:33 : 18/19 17:16:10 : 19/20 17:16:10 : Test finished. ---------- Total: 19/20 Probability that you were guessing: 0.0% -- signature -- 88248f1d5a9f1c9888f8f45d84a5c60164ae43b7