Re: Cyclic digital noise in all recordings
Posted: Mon Jan 05, 2015 4:55 pm
Exclusive Mode has no effect if MME host is chosen in Audacity's Device Toolbar - in that case the Default Format sample rate will be used and to avoid un-necessary resampling you must set Audacity project rate to the same as Default Format.dtwink12 wrote:My setup is as follows:
Windows 7 64-bit
iUR2 USB interface
1x condenser mic (R)
1x acoustic-electric guitar (L)
So I have been terrorized by this nasty cyclic noise for a couple hours. I decided to try to make the device work without ASIO4ALL since it adds another layer of complication.
SOLUTION
1. Right-click on the sound icon in the bottom right corner of your Windows desktop.
2. Click 'Recording Devices' and a window will open.
3. Double-click on the device that is giving you trouble (in this case the iUR2).
4. Click on the 'Advanced' tab on the far right.
5. Ensure that the 'Default Format' option is set to "2 channel, 16 bit, 48000 Hz (DVD Quality)"
6. Click 'Apply' and your device should now work fine in Audacity.
NOTE: Also on the 'Advanced'' tab is a header 'Exclusive Mode'. I have both boxes checked to ensure exclusivity of my recording programs. This may help your situation, but I can't be certain if this affects the problem or not.
If you choose Windows DirectSound host in Device Toolbar, with Exclusive Mode on in Windows, Default Format rate is ignored. Audacity will request the rate specified in project rate direct from the device. As long as you choose a rate that the device supports, this should generally speaking give the best results, though some devices and/or poorly written drivers may work better with MME.
Gale