Search found 59476 matches

by steve
Mon Oct 18, 2010 11:49 am
Forum: General Feedback and Discussion
Topic: time-frequency graph
Replies: 1
Views: 4845

Re: time-frequency graph

Click on the name of the track and from the drop down menu select "Spectrum". There are also some settings in Preferences (Edit menu) that allow the range to be set. It is highly recommended that you upgrade to Audacity 1.3.12. Many of the tools have significant improvements over the old 1...
by steve
Mon Oct 18, 2010 11:44 am
Forum: Windows
Topic: Labels Time Shift
Replies: 11
Views: 2178

Re: Labels Time Shift

The audio track and the label track must both be selected when pasting. I'll try and give a clear example: 1) Open a new Audacity project and create 10 seconds of sound. 2) Select from 5 seconds to 6 seconds and press Ctrl+B (creates a label). 3) Select from 3 seconds to 8 seconds in both the audio ...
by steve
Mon Oct 18, 2010 11:11 am
Forum: Nyquist
Topic: Import List of Frequencies and Levels
Replies: 11
Views: 5993

Re: Import List of Frequencies and Levels

An interesting concept. I've used "Plot Spectrum" to analyse some piano notes, then used a modified form the code from the previous message to synthesize the piano tones, and finally applied the original amplitude envelope to synthesized tones. This is a rather crude form of synthesis, but...
by steve
Mon Oct 18, 2010 9:20 am
Forum: Nyquist
Topic: Import List of Frequencies and Levels
Replies: 11
Views: 5993

Re: Import List of Frequencies and Levels

If you need to handle large sets of data, I've tested this version successfully with 8191 pairs. (setf data'( 1000 -12 2500 -16 4400 -8 )) (setf out (s-rest 1)) (dotimes (i (/ (length data) 2)) (setf out (sim out (scale (db-to-linear(nth (+ 1 (* i 2))data))(hzosc (nth (* i 2)data)))))) out)))
by steve
Mon Oct 18, 2010 8:20 am
Forum: Nyquist
Topic: Import List of Frequencies and Levels
Replies: 11
Views: 5993

Re: Import List of Frequencies and Levels

This is a minor variation of the previous code that will probably make it easier to copy and paste your data: (setf data(list 7.812500 -56.830444 15.625000 -102.577049 23.437500 -97.693710 31.250000 -86.344406 )) (simrep (i (/ (length data) 2)) (scale (db-to-linear(nth (+ 1 (* i 2))data))(hzosc (nth...
by steve
Mon Oct 18, 2010 7:49 am
Forum: Windows
Topic: Labels Time Shift
Replies: 11
Views: 2178

Re: Labels Time Shift

You need to select both the audio track and the label track both when you copy and when you paste. (When you paste, it is probably easier to make a small selection, which will be overwritten, than to try and just place the cursor position with both tracks). I'm not convinced that the Sync-lock behav...
by steve
Mon Oct 18, 2010 7:37 am
Forum: Nyquist
Topic: Import List of Frequencies and Levels
Replies: 11
Views: 5993

Re: Import List of Frequencies and Levels

No there is no feature that does that, however it is relatively simple to do from the Nyquist Prompt. The Nyquist Prompt is in the Effect menu, and to enable it you need to have part of an audio track selected. The following code posted into the Nyquist Prompt box will generate the required tone int...
by steve
Mon Oct 18, 2010 3:26 am
Forum: Windows
Topic: Labels Time Shift
Replies: 11
Views: 2178

Re: Labels Time Shift

If you select both the audio track(s) and the label track you can do it with cut and paste.

Alternatively you can "Split Cut" the labels on the left and paste them to a new label track.
by steve
Sun Oct 17, 2010 8:06 pm
Forum: Windows
Topic: Stereo Mix Not Findable
Replies: 1
Views: 411

Re: Stereo Mix Not Findable

Techy wrote:I'm sticking with 1.3.
In that case I'll move this topic from the 1.2 section to the 1.3 section.

"Stereo Mix" is a sound card setting rather than an Audacity setting.

See here: http://wiki.audacityteam.org/wiki/Mixer ... trol_Panel
by steve
Sun Oct 17, 2010 8:01 pm
Forum: General Feedback and Discussion
Topic: Audacity`s Green Bars discussion please
Replies: 5
Views: 1402

Re: Audacity`s Green Bars discussion please

The lighter shade of green is the peak level and the darker shade of green is the RMS (average) level. To avoid clipping (distortion) it is essential that the peak level does not reach 0 dB. During recording it is generally recommended to aim for a peak level of around -6 dB (so as to allow a bit of...