High pitch sound at recording time

I’ve just installed Audacity on a Mac using High Sierra. When I attempt to record, there is a high pitch sound and nothing gets recorded. How do I set up the system to avoid this, please?

If you are recording from a microphone, ensure that you use headphones and not speakers for playback.

Thanks, Steve.

I’m recording using Audacity with a cable plugged into the MBP from the iPHone.


Please post a short sample so that we can hear and see what this high pitch sound is like. Ensure that the sample contains a bit of ordinary audio.
The sample should be a few seconds long (say around 6 to 10 seconds) and in WAV format, exported directly from the project immediately after recording and before applying any effects or processing. See here for how to post an audio sample: https://forum.audacityteam.org/t/how-to-post-an-audio-sample/29851/1

I’m having the same issue. It’s almost like feedback. I’m recording from an audio-technica usb turntable to an iMac running 10.14.6. When I run through the clicks to get the recording que’d up, I hit pause then record, and when record activates the tone occurs. I’ve attached a WAV file if it helps.

That sounds like noise on the USB power line.
You could try using a USB lead that has a ferrite choke and see if that gives any improvement.