Been using AUD for years. Plugged in my usb mic, started AUD … could not get any volume level. Tried internal mic on computer. No go. Noticed that every time I started a new recording, recording volume always jumped back to zero. When I would move it to normal level … it would simply jump back to zero. It is inexplicable. AUD has been so consistent and I’ve changed nothing using same computer, mic, etc… for 2 years. Help!!
As a clarification, even with eternal mic (and no outside mic plugged in) … the recording level jumps to zero in about 3 to 5 seconds. I can play old files and edit … just no mic activity. Very puzzling.
Look in the Windows Sound Control Panel in the Recording tab and see if your mic is working (you should see a green meter jumping up and down when you peak into the mic).
Which version of Audacity? (look in “Help > About Audacity”)
Are you talking about Audacity’s recording volume slider moving itself back to zero, or the waveform fading to flat line? Waveform fading can be due to Windows enhancements for recording voice. You may want to turn those off for each recording device you use, but the USB mic may not have such enhancements. See http://manual.audacityteam.org/man/faq_recording_troubleshooting.html#enhancements.
What is the make and model number of the USB mic? Does it support Windows 10? If it requires special drivers, it might not.