Audacity Forum

"Contrast" now works with mono or stereo (has done for a few years now).

If you needed a very reliable measurement of the noise floor in a recording, how would you do it? (any tools / any software is allowed)

According to the manual (https://manual.audacityteam.org/man/faq_errors.html#Why_do_I_get_.22FFmpeg_Error_-_Can.27t_open_audio_codec_0x15002.22_.28or_0x15003.29.3F) Error 0x15002 occurs if you export more than a 2-channel M4A file (such as a 5.1 surround sound file), using the "M4A (AAC) Files ...

and you couldn't get Audacity 2.3.3 to recognise FFmpeg either?

@Steve, Bill: either of you (or anyone else) think this is a good idea ? I'm used to seeing things with an [ X ] close button in one of the top corners. The current position seems to me like the obvious place for a track delete button. If it was removed, I'd expect a lot of people to complain that ...

Has this ever worked on that Windows 10 computer with other versions of Audacity?

Try updating Audacity to the 2.4.1 version, and select the option to "Reset Preferences" during the installation.

Audacity on Windows is 32-bit, and does not support 64-bit plug-ins. Ensure that you are not trying to use the 64-bit versions as they won't work with Audacity.

I have found, that this is the case only, when using analog microphones at the computer's mic input. Is this a laptop computer or a full-size desktop / tower? If it is a laptop, do you have separate sockets for microphone and headphones? If it is full-size PC, are the sound card sockets color coded?

I don't use Reaper so I can't comment on that.

You could try the Calf plug-ins.
You could try the Guitarix plug-ins.

Why did earlier Audacity versions appear to succeed? Earlier versions of Audacity had an earlier version of the Nyquist library. In the earlier version of Nyquist, the plug-in would succeed up to 100 million samples provided that the computer has enough free memory. If the computer did not have eno...