Search found 1730 matches

by Robert J. H.
Wed Sep 04, 2013 4:08 pm
Forum: Feature Request Archive
Topic: Exported Spectrum overwrites existing file.
Replies: 22
Views: 8037

Re: Exported Spectrum overwrites existing file.

I always wonder that no warning is given out "File exists already. Overwrite it?". That's the moment where I recall that the spectrum is automatically appended. I don't need this feature either. It only leads to confusion and mistakes. I repeatedly use the same name and just copy the conte...
by Robert J. H.
Wed Sep 04, 2013 3:45 pm
Forum: Windows
Topic: change dither to none? in quality settings?
Replies: 40
Views: 9400

Re: change dither to none? in quality settings?

After solving the case of the odd Aiff file, the next thrilling adventure looms ahead, the "strange case of Mr Flac". I must admit that I am baffled too. It seems that the wave file isn't shaped at all - just plain white noise. The two files have apparently the same sample values but diffe...
by Robert J. H.
Wed Sep 04, 2013 1:11 pm
Forum: Announcements
Topic: Windows 2.0.4 Release Candidate 1 (zip) and 2 (installer)
Replies: 10
Views: 1379

Re: Audacity 2.0.4 Release Candidate 1 (zip and installer)

there's another WASAPI related issue: - Create a tone (I've created a 1000 Hz. Risset Drum) - Output: WDS - set Audio buffer to 100 - Select a small region at the beginning (5000 samples) - play the selection (should be fine) - Change to WASAPI - play the region On my system, it plays the selection ...
by Robert J. H.
Wed Sep 04, 2013 11:13 am
Forum: Windows
Topic: how does 'enhanced autocorrction' work?
Replies: 7
Views: 4147

Re: how does 'enhanced autocorrction' work?

Audacity does this only for the first time, that's why there are also negative level values in the exported spectrum file (and the plot, I assume). I'm not seeing negative values for Enhanced Autocorrelation data. I am seeing some negative values for Cube root Autocorrelation and Standard Autocorre...
by Robert J. H.
Wed Sep 04, 2013 9:21 am
Forum: Windows
Topic: how does 'enhanced autocorrction' work?
Replies: 7
Views: 4147

Re: how does 'enhanced autocorrction' work?

Unfortunately, most of the plot spectrum options are not described in detail. If no one explains for what those 3 auto correlation features can be used, no one will use them. I fancy that you understand the basic auto correlation. It tells you if a sound is included in itself. It gives you a hint ab...
by Robert J. H.
Wed Sep 04, 2013 8:40 am
Forum: Announcements
Topic: Windows 2.0.4 Release Candidate 1 (zip) and 2 (installer)
Replies: 10
Views: 1379

Re: Audacity 2.0.4 Release Candidate 1 (zip and installer)

I could not see what http://en.wikipedia.org/wiki/X86_architecture has to do with this discussion. Can you give more exact steps to reproduce, and state what happens when you try to record without changing Default Format in Windows Sound? Does this problem happen with WASAPI but not with Windows Di...
by Robert J. H.
Tue Sep 03, 2013 6:44 pm
Forum: Announcements
Topic: Windows 2.0.4 Release Candidate 1 (zip) and 2 (installer)
Replies: 10
Views: 1379

Re: Audacity 2.0.4 Release Candidate 1 (zip and installer)

Thanks for testing, Robert. I've shortly looked into the new version (on Windows 7, 64 bit, Sound Blaster X-Fi Xtreme Audio) WASAPI seems to perform better now. The recording level adjustment has been improved. In overdub mode, a 0 dB original track is recorded at -0.1 dB, whereas, with Windows Dir...
by Robert J. H.
Tue Sep 03, 2013 10:29 am
Forum: Announcements
Topic: Windows 2.0.4 Release Candidate 1 (zip) and 2 (installer)
Replies: 10
Views: 1379

Re: Audacity 2.0.4 Release Candidate 1 (zip and installer)

I've shortly looked into the new version (on Windows 7, 64 bit, Sound Blaster X-Fi Xtreme Audio) WASAPI seems to perform better now. The recording level adjustment has been improved. In overdub mode, a 0 dB original track is recorded at -0.1 dB, whereas, with Windows Direct Sound, the level is -0.8 ...
by Robert J. H.
Tue Sep 03, 2013 5:42 am
Forum: GNU/Linux
Topic: File size
Replies: 6
Views: 3994

Re: File size

You should also compare the other settings that were used on the original and the exported copy. - Mono, dual mono, separated stereo or joint Stereo. - Constant, average or variable bit rate. - Enhanced quality settings (if available) Use Media info or the propertys tab in your player to gather this...
by Robert J. H.
Mon Sep 02, 2013 4:54 pm
Forum: General Audio Programming
Topic: Frequency compression around a center?
Replies: 5
Views: 6798

Re: Frequency compression around a center?

Theoretically you could adapt a "phase vocoder" algorithm (http://www.dspdimension.com/admin/time-pitch-overview/) This is not an easy programming task. It might be easier in this case because the sound has not to be shifted in a musical sense. The task seems similar to the rendering of w...