G/ReVerb issue in Mac OS 10.10.5

I am editing recordings of a piano/trumpet album and need to use ReVerb or GVerb to create the illusion of a recording room with proper acoustics, but both are wiping out my audio after a part of one second. The length of audio clip does not change the out come.

Attached are three screen shots:
1: ReVerb settings
Screen Shot 2015-12-12 at 11.41.51 PM.png
2: GVerb settings,
Screen Shot 2015-12-12 at 11.39.36 PM.png
3: and the out come (being the same for both plug-ins).
Screen Shot 2015-12-12 at 11.42.21 PM.png
What obvious things have I neglected?

Thanks in advance!

What does the outcome sound like, if anything?


Which version of Audacity do you have? (look in “Audacity > About Audacity”)
Did you get Audacity from here: http://web.audacityteam.org/download/mac

Perhaps there are invalid samples in the recording? What happens with another known good file, such as a CD rip?


kozikowski: There is no sound, but as you see a great deal of visual oscillation.

steve: I was using 2.0.2 at the project start. Just before posting to the forum I upgraded to 2.1.0 with the same results from GVerb and the new Reverb filter; thus my inquiry.

Gale Andrews: Yes, the results are the same no matter the file or file’s origin.


Okay, so it appears an FFMPEG package was not installed. I was looking through my downloads folder and it appears I was on the same track 3 years ago. That was before I started graduate school.

The package I found and installed is, “FFmpeg_v0.6.2_for_Audacity_on_OSX” and now both GVerb and Reverb fully function.

Should anyone else have this issue, I hope this helps. I sadly do not remember from where I downloaded the file.

Thanks again for everyone’s help!


For information, instructions for downloading and installing FFmpeg are in the manual: http://manual.audacityteam.org/o/man/faq_installation_and_plug_ins.html#ffdown

'FFmpeg is used only for importing / exporting files, and by default it is only used for file types that are not natively supported by Audacity. I don’t see how this can be connected with the original problem that you reported, but I’m pleased that problem is no longer happening.

The current version of Audacity is 2.1.1 and the download links are here: http://web.audacityteam.org/download/