Search found 59476 matches

by steve
Fri Mar 08, 2019 12:31 am
Forum: Windows
Topic: CTRL-I no longer splits clips in 2.3?
Replies: 2
Views: 127

Re: CTRL-I no longer splits clips in 2.3?

The number of default shortcuts has been trimmed down to free up a few key combinations for custom shortcuts. The "full" set of shortcuts is still available, but it has to be enabled in Preferences: "Edit menu > Preferences > Keyboard: Defaults => Full" See: https://manual.audaci...
by steve
Thu Mar 07, 2019 9:41 pm
Forum: Audio Processing
Topic: How can I amplitude modulate one channel with another ?
Replies: 24
Views: 11540

Re: How can I amplitude modulate one channel with another ?

The code requires a stereo track.
by steve
Thu Mar 07, 2019 5:46 pm
Forum: Nyquist
Topic: Nyquist beginner -- how to copy *warp* from one wave to another
Replies: 5
Views: 796

Re: Nyquist beginner -- how to copy *warp* from one wave to another

HamonicSound wrote:
Thu Mar 07, 2019 2:00 pm
I've programmatically created a wave of arbitary length - I don't know the length
Generally it would be preferable to create the sound in a way that the length is known.
by steve
Thu Mar 07, 2019 4:27 pm
Forum: Audio Processing
Topic: How can I amplitude modulate one channel with another ?
Replies: 24
Views: 11540

Re: How can I amplitude modulate one channel with another ?

If you want to also remove the carrier wave, try: (sim (mult (aref s 1) -0.5) (mult (sum 0.5 (scale 0.5 (aref s 0))) (aref s 1))) Just to be sure, I assume that this code: -1- accepts two ordinary audio tracks (not necessarily for one of the them to be a pure sine wave and play the carrier) -2- and...
by steve
Thu Mar 07, 2019 2:40 pm
Forum: Nyquist
Topic: Nyquist beginner -- how to copy *warp* from one wave to another
Replies: 5
Views: 796

Re: Nyquist beginner -- how to copy *warp* from one wave to another

Does this help: ;type generate (setf tone (osc 70 3)) ;a 3 second tone ;Find the length of "tone" (setf duration (/ (snd-length tone ny:all) *sound-srate*)) (mult tone (stretch duration (hzosc 2))) or more generally: ;type generate (setf tone (osc 70 3)) ;a 3 second tone (defun modulate (s...
by steve
Thu Mar 07, 2019 2:34 pm
Forum: Audacity Artwork and Graphics
Topic: 3D Spectrogram
Replies: 24
Views: 6349

Re: 3D Spectrogram

Thanks dwsubc, and nice to see you back again after all this time ;)
by steve
Thu Mar 07, 2019 1:48 pm
Forum: Windows
Topic: Multi track recording
Replies: 2
Views: 125

Re: Multi track recording

Are you asking about recording multiple channels simultaneously, or "overdub recording". Multi-channel recording depends on the capabilities of the sound card and the sound card drivers. In most cases on Windows, this is limited to 1 (mono) or 2 (stereo) channels, though a few audio device...
by steve
Thu Mar 07, 2019 1:43 pm
Forum: Audacity Artwork and Graphics
Topic: 3D Spectrogram
Replies: 24
Views: 6349

Re: 3D Spectrogram

So, I just looked at the web console in Firefox and I get the following error when I open http://starrydave.com/3d/birds03/birds03.html Error: WebGL warning: <SetDimensions>: Failed to create WebGL context: WebGL creation failed: babylon.js:1:134729 * WebGL 2 requires support for the following feat...
by steve
Thu Mar 07, 2019 1:40 pm
Forum: macOS
Topic: Lable Track can't input chinese
Replies: 0
Views: 618

Re: Lable Track can't input chinese

Thanks for the report. This is a known issue on Windows, but this is the first report that we've had of the problem occurring on macOS X.
I'll add a note on the bug tracker that it also occurs on Mac.
by steve
Thu Mar 07, 2019 1:35 pm
Forum: Audacity Artwork and Graphics
Topic: 3D Spectrogram
Replies: 24
Views: 6349

Re: 3D Spectrogram

When I open http://starrydave.com/3d/birds03/birds03.html I just get the audio, but no image at all. Same here. I guess dwsubc has removed the visuals, or it has broken, or it requires an older web browser. Either way, you would need to ask the website owner as we have no association with that site.