lossyWAV 1.2.0 Development Thread
Reply #149 – 2009-01-30 23:36:39
... my 1st test file provided enough input ... Really, especially as you were using '-I', didn`t you? What come to my mind is that '-I' uses noise shaping to the max, meaning all the added noise is collected in the 13+ kHz range. This is not expected to be a problem, but who knows for sure? Do you mind testing with the additional switch '-s 0' which disables noise shaping, or a low noise shaping setting like '-s 0.3'? As '-S' is wanted to yield transparent results I'd prefer to have this setting tested. shadowking's proposal of using '-P' is of course intersting too. As a positive side effect for you using '-S' and '-P' testing should be easier. Can you tell a bit about what is wrong with the lossyWAV result? halb27 - Thanks again for helping me set this up , would not be able to without your help. As I hinted above , Im the first to say that I do NOT have Reference ears anymore. On the other hand , I have been a musician most of my life, & have had experience with sound systems of different levels throughout, (& a music fan of course). with the last test (log included with the test files above) I used the script Nick C. provided that uses --standard. I cannot tell what's wrong with lossywav itself, but I can highlight key points in my uploaded test files, that helped me tell them apart. In the track called 'Country Roads' , what gave it away for me was noise. Once locked in on it ,you can notice it quite clearly , until fatigue gets you (me). on The 'Rock With You' Track what gave it away for me was the reduced overtones in the ambience of the lead synth line. On The 'Oleo' track , the one with the log included in the test files, it was the midrange thickness of the organ. Sharp-eared experienced users (with some level of decent gear), (not to mention experienced pros /true Audiophiles) should have a way higher percentage of noticing the differences, more then my somewhat tired although experienced ears can hope for. Here is an example: I saved the log for 'Rock With You' - one look is enough to tell when fatigue has set in on me ,(or maybe i lost my focus ?!) & how long it took me to snap out of it , but the results still have meaning.foo_abx 1.3.3 report foobar2000 v0.9.6.2 beta 2 2009/01/30 03:22:51 File A: F:\MP3\Favourite\TEST FILES\Michael Jackson - Rock With You.flac File B: F:\MP3\Favourite\TEST FILES\Michael Jackson - Rock With You.lossy.flac 03:22:51 : Test started. 03:23:54 : 01/01 50.0% 03:24:27 : 02/02 25.0% 03:25:55 : 03/03 12.5% 03:26:43 : 04/04 6.3% 03:27:25 : 05/05 3.1% 03:27:59 : 06/06 1.6% 03:29:53 : 06/07 6.3% 03:32:13 : 07/08 3.5% 03:33:25 : 08/09 2.0% 03:34:21 : 09/10 1.1% 03:35:03 : 10/11 0.6% 03:36:10 : 11/12 0.3% 03:37:25 : 11/13 1.1% 03:39:02 : 12/14 0.6% 03:41:12 : 12/15 1.8% 03:41:57 : 12/16 3.8% 03:43:20 : 12/17 7.2% 03:44:31 : 12/18 11.9% 03:46:05 : 13/19 8.4% 03:47:28 : 13/20 13.2% 03:49:05 : 14/21 9.5% 03:49:28 : 15/22 6.7% 03:50:07 : 16/23 4.7% 03:51:37 : 17/24 3.2% 03:52:22 : 17/25 5.4% 03:52:31 : 17/26 8.4% 03:53:15 : 18/27 6.1% 03:54:34 : 19/28 4.4% 03:55:42 : 20/29 3.1% 03:57:12 : 20/30 4.9% 03:57:41 : 21/31 3.5% 04:00:12 : 21/32 5.5% 04:01:43 : 21/33 8.1% 04:01:57 : 22/34 6.1% 04:04:18 : 23/35 4.5% 04:05:48 : 23/36 6.6% 04:07:36 : 23/37 9.4% 04:09:56 : 24/38 7.2% 04:10:49 : 25/39 5.4% 04:11:55 : 26/40 4.0% 04:12:04 : Test finished. ---------- Total: 26/40 (4.0%)