Search found 59476 matches

by steve
Mon Apr 21, 2014 4:18 pm
Forum: GNU/Linux
Topic: is JACK recommend with Audicity??
Replies: 5
Views: 2287

Re: is JACK recommend with Audicity??

First the good news: Audio on Linux has matured considerably over the last few years. Most users find that PulseAudio now works reliably out of the box, and Jack is generally much easier to set up than previously. It is even possible to get Jack and Pulse to play nicely with each other, giving the b...
by steve
Mon Apr 21, 2014 3:18 pm
Forum: Windows
Topic: Getting best quality audio from mp3 and mp4
Replies: 20
Views: 6187

Re: Getting best quality audio from mp3 and mp4

Thank you, Steve, this is a big help. I want to clarify a couple of things. No problem, but first let's clarify about "lossless". Strictly speaking "lossless" means that the conversion is "perfect" - no loss of quality at all. In real life, hardly anything is "per...
by steve
Mon Apr 21, 2014 11:56 am
Forum: New Plug-Ins
Topic: Amplitude Modulation
Replies: 13
Views: 8799

Re: Amplitude Modulation

I guess this code here looks far better than my first one: Adapting your code for a more conventional AM effect: ; example settings: (setq freq 2) (setq mix 0.5) (setq phl 0) (setq phr 180) ;; Generate modulation wave. (defun mod-wave (hz mix ph) (let ((modulation (hzosc hz *sine-table* ph)) (wet (...
by steve
Mon Apr 21, 2014 11:23 am
Forum: Nyquist
Topic: Export waveform envelope to CSV
Replies: 10
Views: 6526

Re: Export waveform envelope to CSV

(setf *float-format* "%.2f") (Format t "Time (s)tPeak (dBFS)tRms (dBFS)n") (do* ((sr (truncate *sound-srate*)) (ti 0 (1+ ti)) (pks (snd-samples (linear-to-db (snd-avg s sr sr 2)) ny:all)) (rms (snd-samples (linear-to-db (snd-sqrt (snd-avg (mult s s) sr sr 1))) ny:all))) ((>= ti ...
by steve
Mon Apr 21, 2014 11:19 am
Forum: macOS
Topic: How to mark a stretch of audio, and/or amplify quiet voices
Replies: 8
Views: 2004

Re: How to mark a stretch of audio, and/or amplify quiet voi

In a spoken word recording, to amplify a voice that is far away from the mic and almost inaudible, I use the compressor on that piece (default settings, played a bit but did not get far), then reduce the noise such that the level of the background noise matches the rest of the recording. Might it b...
by steve
Mon Apr 21, 2014 10:44 am
Forum: Windows
Topic: Getting best quality audio from mp3 and mp4
Replies: 20
Views: 6187

Re: Getting best quality audio from mp3 and mp4

The losses of MP3 and MP4 occur during encoding (rather than decoding). Audacity will always decode MP3 and MP4 the best it can, but some "damage" has already been done by the previous encoding. The default settings in Audacity are to work in 32 bit float format (uncompressed), however due...
by steve
Mon Apr 21, 2014 10:24 am
Forum: Nyquist
Topic: Export waveform envelope to CSV
Replies: 10
Views: 6526

Re: Export waveform envelope to CSV

(setf *float-format* "%.2f") (Format t "Time (s)tPeak (dBFS)tRms (dBFS)n") (do* ((sr (truncate *sound-srate*)) (ti 0 (1+ ti)) (pks (snd-samples (linear-to-db (snd-avg s sr sr 2)) ny:all)) (rms (snd-samples (linear-to-db (snd-avg s sr sr 1)) ny:all))) ((>= ti (1- (get-duration 1)...
by steve
Mon Apr 21, 2014 12:37 am
Forum: Windows
Topic: Audacity only exporting first 2 hours....
Replies: 3
Views: 557

Re: Audacity only exporting first 2 hours....

What file format are you trying to export as? (including number of channels and sample rate).
Where are you trying to export it to?
Does the full 8 hours play correctly in Audacity?
by steve
Mon Apr 21, 2014 12:34 am
Forum: Windows
Topic: Recording in-game audio is problematic
Replies: 5
Views: 482

Re: Recording in-game audio is problematic

Do you use a microphone in half-life? (I've never played the game)
If you do, then the game may well be trying to select the microphone as the sound card input, which will conflict with you attempting to set "What U Hear" as the input.
by steve
Sun Apr 20, 2014 7:47 pm
Forum: Audacity 2.x Feedback and Reviews
Topic: Surround / Multitrack Export Channel Names
Replies: 3
Views: 2191

Re: Surround / Multitrack Export Channel Names

I've successfully created and exported a surround sound FLAC file. Terrific. :D It would be really useful if the channels were labeled as Front Left, Centre, Front Right, Surround Left, Surround Right, LFE etc. In the meantime - is there a handy guide to which channel is which? Unfortunately it is ...