Audacity Forum

@Steve: if you use Tremolo to modulate a 425 Hz tone with a 25Hz sine wave then you have an amplitude-modulated 425 Hz carrier with sidebands at 400 Hz and 450 Hz. You're right of course Bill. Identical results can be achieved by amplitude modulation or additive synthesis (though its the carrier an...

I thought if you do a 32-bit operation, it will temporarily convert it to 32-bit, do the operation, and then downsample it back to 16-bit. Yes it will. But when it down-samples it to 16 bit it will apply dither according to the dither settings in Preferences. If you set the track to 32 bit, then th...

Would it be better though for Audacity to keep the data in 32-bit until the time that the user wants to export it to a 16 bit format? Yes it would. That's why the default "Quality" setting is 32 bit and why uncompressed audio files are imported as 32 bit. I suspect that some compressed fi...

Update:

I'm getting crashes with WMA import and export with 1.3.13, but not with 1.3.12 (both using the same nightly build of FFmpeg).
I'll have a go building Audacity with that patch and see if that works any better.

I'm just now testing with FFmpeg from the current nightly. The default ./configure creates a static build of FFmpeg which does not have .SO files. I've built with the --enable-shared option, then the .SO files are produced. I modified Audacity using the instructions here: http://manual.audacityteam....

If you are working entirely in 32 bit, there should be no dither applied. When you opened the AAC file, did it create a 16 bit track? If so, then the data is 16 bit, and when Audacity processes that data, it processes it in 32 bit and returns the data as 16 bit (to match the format of the track) and...

Audacity does not import all file types in the same way. It uses various "libraries" to assist with converting the file into the raw data that will be used in the project. In most cases it is an advantage to work with 32 bit audio data as it allows calculations to be performed with incredi...

Gale Andrews wrote:Steve if you are reading, do you use latest git FFmpeg with SVN HEAD on Ubuntu 10.10?

So far I've only used FFmpeg with Audacity 1.3.12 (both from the Ubuntu 10.10 repository).
I've not investigated Audacity 1.3.13 with FFmpeg. Would you like me to?

With the assistance of "FFmpeg", Audacity 1.3.12 supports a lot more audio formats than the old 1.2.6 version. http://audacityteam.org/download/ http://manual.audacityteam.org/index.php?title=FAQ:Installation_and_Plug-Ins#installffmpeg I think that SUPER is Windows only (and this is the Ma...

As Koz says, it's usually the network delays that are the killer, however, for small projects it may be possible to use Audacity by configuring Audacity to write data to the thin client's memory rather than to the network. This will of course severely restrict the size and complexity of the Audacity...