I was asked for a How-To to remove CTCSS tones from recordings... here's a quick tutorial:
Download Audacity Windows installer from
Windows | Audacity ®
Download the installer and under optional downloads grab the LADSPA installer
Download LAME MP3 binaries here:
https://lame.buanzo.org/libmp3lame-win-3.99.3.zip
Download FFMPEG binaries from here:
https://lame.buanzo.org/ffmpeg-win-2.2.2.exe
Run LADSPA installer
Extract the LAME and FFMPEG binaries. Create a folder for each and place the files into them
Run the Audacity installer and launch Audacity when installing is complete
Under EDIT --> PREFERENCES and select Libraries
If Audacity hasn't detected the files then select Locate and point Audacity to the folders you created above
The versions of the binaries should be detected and you're all set.
(You can verify these also by going to HELP -> ABOUT AUDACITY -> Build Information)
Now you can open just about any audio file (regardless of extension) and work with it. Then when you're done tweaking the audio you can export it under FILE -> EXPORT -> EXPORT as MP3
To remove any CTCSS tone:
Open the audio file
Highlight the entire waveform (double-click inside the waveform boxes... the background will turn white)
From the menu, select EFFECT -> NOTCH FILTER
Simply input the CTCSS tone frequency you want to remove and say OK
Done!
thanks.
