Audacity Forum

The level of satisfaction seems to be very dependent on how much the user is expecting of the effect (the main reason why raising expectations with the name Noise "Removal" is a bad idea imo). For reducing gentle hiss from a reasonably good "home studio" recording, I find the cur...

Black Dog Bluez wrote: --so far much better than stats.ny for measuring RMS

Is that just because it doesn't have the 30 second limitation, or are there other advantages?
Do the RMS measurements agree with stats.ny?

MP3 always has a bit of leading silence. This is a limitation of the MP3 format (Encoder/decoder overall delay is not defined. See: http://en.wikipedia.org/wiki/MP3#Design_limitations). A few players are able to compensate, if the MP3 has been encoded with the LAME Mp3 info tag. AAC also has a gap a...

The algorithm change in Audacity 1.3.3 (r5979) was, for most material, a considerable improvement over the older algorithm. In particular, it was/is much better for music that has very low level noise as there is insignificant effect on the music while giving a good amount of reduction to the noise ...

Paul L wrote:Why did you think this change would help?

What I was thinking was, looking at how the profile is created, rather than take the min or max, why not take the average?

best way to set up the plot spectrum for it to be the most accurate? If you need low frequency accuracy, set the "Size" to 65536 (maximum) and the "Axis" to "Log frequency". For even greater low frequency resolution, resample the track to a low sample rate (Tracks > Re...

I'll need to check the code..... Is the design you mention the "Label starting point" or something else? Yes, the "Label starting point [seconds before sound starts]", though the accuracy is limited to +/- 1/100th second. Sound Finder (and Silence Finder) create an amplitude enve...

At line 478 of NoiseRemoval.cpp change this: How about changing: float min = mSpectrums[start][j]; for (i = start+1; i < finish; i++) { if (mSpectrums[i][j] < min) min = mSpectrums[i][j]; } to: float min = mSpectrums[center][j]; The main problem being that with either, in my initial test, the remai...

Paul L wrote:There seems to be a bug that mislabels the vertical scale of Spectrogram Log F, unless you zoom out to the maximum.

Would that be: http://bugzilla.audacityteam.org/show_bug.cgi?id=525

I'll have a look and see if I can work out what they are doing. I'll get back later today. Unfortunately I couldn't find out much. Their version is only available for Windows or Mac and their documentation says nothing about combining multiple I/O data sheets. The I/O feature is something they have...