Audacity Forum

This is a mini-tutorial about how Nyquist adds sounds, numbers and vectors. The examples may be run in the Nyquist Prompt effect, and use "version 4" LISP syntax (in Audacity 2.1.2/2.1.3 ensure that "Use legacy (version 3) syntax" is NOT enabled). Note that in the code examples, ...

Counting the peaks with Nyquist gives the same answer: With this solution, the "step" setting is important. Zooming in on the track we can see that there are gaps of around 400 samples length between spikes, but the spikes themselves have "gaps" of around 70 samples duration. To...

On that recording the fundamental frequency is ~37Hz ... Counting the peaks with Nyquist gives the same answer: ;version 4 (setf threshold 0.8) ;count click each time we cross this level (setf step 180) ;follow waveform in steps of this number of samples ;; Use only the left channel of stereo track...

But when applied to stereo-tracks the Left & Right are very different ??? Stereo tracks are passed to Nyquist as a one dimensional array (a "vector") containing two (mono) "sounds" (one for each channel). UPDATE: Mini tutorial on this subject added here: http://forum.audacit...

jukeboxjackson wrote:'C:\ALL MUSIC\ALL.exe

".exe" indicates that the file is a Windows (or Dos) "executable" file, not an audio file. See: http://www.jegsworks.com/lessons/win/fi ... /names.htm

If you post a short sample in WAV format, we may be able to offer better suggestions (see here for how to post an audio sample: http://forum.audacityteam.org/viewtopic ... 49&t=72887)

(setf frequency 440) sets the feedback frequency to 440 Hz
(setf feedback 1.001) sets the feedback amount. Amounts greater than 1.0 will cause runaway feedback.

Audacity does not actually have "MIDI" tracks. it has "Note Tracks". Note tracks are based on the Allegro format which supports many more features than MIDI. When a MIDI track is imported into Audacity, note data from the MIDI file is converted into Allegro note data and displaye...

The short answer: No, Audacity does not apply effects in real time. Longer answer: If you really need to do this, then a mixing desk is the way to go, but the easiest solution is to record first then pan later. Note also that how the operating system handles recording into a 2 channel (stereo) track...

Gale Andrews wrote:You can enable experimental MIDI playback if you recompile Audacity and define USE_MIDI and EXPERIMENTAL_MIDI_OUT.

though there is no guarantee that it will work because it's unfinished and experimental (it didn't work for me).