Is there a noise removal plugin that one can select an section of track where the noise is and it generate a noise profile to subtract it? Basically, a real-time/non-destructive version of the built in noise reduction plug-in. Specifically one that works in Audacity 4/is not a VST plug-in. Or are there alternate ways of removing constant background noise using non-destructive methods?
I have used the subtract option in the reafir_standalone plug-in from REAPER for this for a few years. With Audacity 4 not supporting VST plug-ins initially (and the plug-in having a few bugs anyway), I am looking for a replacement plug-in.
I am using a Windows computer currently but if I need to purchase a plug-in, I would prefer something that can run on Windows and Linux.
I do use an expander as well (MDynamics by MeldaProduction) if this is relevant information. (though it is not natively supported on Linux).
If I understand what you wrote correctly, I think your solution is done in hardware (a mixer) before it even gets to Audacity. Do a Google search for the term “mix minus”.
I know a podcaster in Japan that regularly has trains going by on live streams with nary a hint that it exists at all using mix minus.
Thank you, I am looking into this.
One thing, about half of my noise is electronic noise from the mics and mixers. Granted, the mixer does have noise suppression features that are turned off. Early on, I had the settings a little too high. Since I was already familiar with selection of what is supposed to be silence for background removal, I have not played with the mixer built in background noise removal.
The free version of Adobe Podcast that’s on the web does a great job of removing noise without distorting the audio. I do my church’s website, and our current audio system is an ancient analog system and our sermons are recorded on audio CDs. When I extract them into Audacity the audio is not very loud and there are other issues. I had one particularly bad recording where I couldn’t remove the noise unless the audio was badly distorted using Audacity’s built-in noise reduction. I ran the file through Adobe Podcast and it cleaned it up great! It also takes out plosives and most other non-voice noises. So I have run all of our audio files through Adobe Podcast since then. I still import the enhanced file back into Audacity and do some more editing myself, but Adobe cleans up a lot of things I couldn’t. The free version only allows a 30 minute file, but if your file is longer than 30 minutes you can split it into two files and then put the enhanced files back together in Audacity. This only works with voice-only files, though; Adobe Podcast will remove any musical instruments (and it may distort singing; I’m not sure). If you get the paid version, there are adjustments you can make to the various things the software does.