Audacity Forum

[1] The phase argument is with microphone recordings... I agree that the phase argument is negligible for (most) real world microphone recordings. (I only say "most" so as to hedge my bet in case someone comes up with a scenario that contradicts the statement, but no such case comes to my...

It would probably be useful if a little more background information could be given in this thread. "AGC compensation" is commonly found in voice recorders, camcorders and such like as an attempt to automatically set the input gain for audio recording. Most commonly this is implemented as a...

Calculating rms for mono/stereo sounds. Nyquist includes a useful function for computing rms signals. (rms sound [rate window-size]) http://www.cs.cmu.edu/~rbd/doc/nyquist/part8.html#index654 However the rms function only handles mono sounds. For stereo sounds we could mix the sounds before calcula...

The issue of rms for a stereo track came up recently in another forum topic, so I thought it would be worthwhile to start a topic that looked at the more general issue of handling stereo tracks in Nyquist plug-ins. Background. For process and analyze plug-ins, audio is passed from audio tracks to Au...

I thought the correct way to calculate rms for stereo tracks was to take the root of the average of mean squares. (snd-sqrt (mult 0.5 (sum (snd-avg (mult (aref s 0)(aref s 0)) step block op-average) (snd-avg (mult (aref s 1)(aref s 1)) step block op-average)))) or (same as) (snd-sqrt (mult 0.5 (snd-...

I've just had a quick look on Google and the general recommendation seems to be that for the m-audio 2496, don't use alsamixer, use envy24control (or Mudita24).

However, in this configuration there is still no control over the recording volume level that I can detect. You will need to do some experimenting. Because M-Audio/Avid don't supply open source drivers Linux can at best guess the capabilities of the sound card from the capabilities of the chip set ...

I have now managed to 'light up' the H/W Multi devices, using the space bar (which is not documented anywhere that I can find, other then your Forum POST). It's in the alsamixer manual. Open a terminal window and maximise it, then type in: man alsamixer Scroll down to read. press "Q" to q...

I have no input enabled, but recording takes place.......Hmm. Yes that is strange, but not having the sound card myself and not running Ubuntu we may need to just accept a few mysteries for now :? Ubuntu refers to it as ICE1712 ICE1712 is the sound card identifier. The audio chip is probably VIA En...

There are lots of versions of Lame on the Internet and most will not work with Audacity. Remove your current version of Lame, then follow the instructions here: http://manual.audacityteam.org/man/FAQ:Installation_and_Plug-Ins#lame The basic 4 steps listed for Windows should be all that you need. Whe...