[LAD] Undeliverable mails for Rui

Hi Rui :) after it failed to send the wanted test to you, because of it's length, I'm blocked :D. Sorry LAD list, Rui is waiting for this test and I don't know how to reach him, while I'm blocked. Cheers, Ralf System Administrator wrote: -------- Original Message -------- Subject: tar.gz including the sound quality test is to long Date: Tue, 20 Oct 2009 02:55:21 +0200 From: Ralf Mardorf &lt;ralf.mardorf(a)alice-dsl.net&gt; To: Rui Nuno Capela &lt;rncbc(a)rncbc.org&gt; CC: qtractor-devel(a)lists.sourceforge.net Your message To: Rui Nuno Capela Subject: Sound quality of audio recordings at 96 Khz/ 24 Bit internal Linux did not reach the following recipient(s): rncbc(a)rncbc.org on Tue, 20 Oct 2009 02:36:57 +0200 This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again. It's the same for the dev list. The tar.gz is < 13 MB. Here is the mail without the attached archive: -------- Original Message -------- Subject: Sound quality of audio recordings at 96 Khz/ 24 Bit internal Linux - b4: Re: [solved] 'offset/ note length' issue Date: Tue, 20 Oct 2009 02:31:51 +0200 From: Ralf Mardorf &lt;ralf.mardorf(a)alice-dsl.net&gt; To: Rui Nuno Capela &lt;rncbc(a)rncbc.org&gt; CC: qtractor-devel(a)lists.sourceforge.net Hi Rui :) first I got some noise references. spinymouse-sudo@64studio:/usr/src/qtractor/noise$ wget http://upload.wikimedia.org/wikipedia/commons/6/66/Whitenoisesound.ogg http://upload.wikimedia.org/wikipedia/commons/6/6c/Pink_noise.ogg http://upload.wikimedia.org/wikipedia/commons/c/c9/Brownnoise.ogg Then I set the CPU frequency scaling to "Performance" and launched JACK and after JACK I run Qtractor. spinymouse-sudo@64studio:/usr/src/qtractor/noise$ jackd -Rdalsa -dhw:0 -r96000 -p512 -n2 -Xseq spinymouse-sudo@64studio:/usr/src/qtractor$ qtractor -v Qt: 4.4.0 Qtractor: 0.4.3.1409 spinymouse-sudo@64studio:/usr/src/qtractor$ qtractor I Imported the three noise.oggs. Qtractor didn't show the waveform for the brown noise recording completely, I don't know the reason why and I never had this bug or user error before, but it's also the first time I used 0.4.3.1409. I tried to record it 2 times. I did stereo recordings for the mono clips too, because this shouldn't cause any changes for the audible result. Okay, a completely new problem occurred. There's an audible loss for the quality of the sound, but in this case because of an understandable reason. The .ogg files are to loud with faders set to +- 0 db. The important thing with this is, that the loss of the sound quality for the white noise is comparable with the kind of loss I've got when doing a recording of music, even if the maximal signal level is under -3 dBFS. So it doesn't matter if the meters are Full-Scale Square wave or Full-Scale Sine Wave meters. Anyway, I wonder where the boost is from. When I recorded music by connecting Qtractors outputs to its inputs both, source clip and target clip were 96-24-stereo.wav files. There never was a visible difference for the volume. Before I go on comparing music recorded by Qtractor and Audacity, I want some information because of the strange level for the .ogg files from wiki. The qtractor session is attached as tar.gz. I suppose you'll have a directory /usr/src/qtractor too, thus you just need to add a directory /usr/src/qtractor/noise. spinymouse-sudo@64studio:/usr/src/qtractor/noise$ ls -l total 17716 -rw-r--r-- 1 spinymouse-sudo src 155775 2006-10-27 00:24 Brownnoise.ogg -rw-r--r-- 1 spinymouse-sudo src 8604 2009-10-20 02:21 noise_test.qtr -rw-r--r-- 1 spinymouse-sudo src 5844866 2009-10-20 01:51 noise_test_qtr-Recorded_brown-1.wav -rw-r--r-- 1 spinymouse-sudo src 5884802 2009-10-20 01:45 noise_test_qtr-Recorded_pink-1.wav -rw-r--r-- 1 spinymouse-sudo src 5890952 2009-10-20 01:44 noise_test_qtr-Recorded_white-1.wav -rw-r--r-- 1 spinymouse-sudo src 161738 2005-07-01 04:36 Pink_noise.ogg -rw-r--r-- 1 spinymouse-sudo src 130717 2006-10-27 00:09 Whitenoisesound.ogg spinymouse-sudo@64studio:/usr/src/qtractor/noise$ tar czf ~/Desktop/noise_test_qtr.tar.gz * Cheers, Ralf