I record vocal learning tracks, using a Yeti Blue microphone and Audacity. With either my Yeti Blue, or my Logitech webcam (both of which connect thru USB ports), a constant pitch sound maintains volume for about 1 sec and then falls off dramatically, as recorded on Audacity. If the frequency changes it returns to proper volume but only for another second.
Attached is a recording of two experiments, the first, a constant pitch, the second, starting with one pitch, running thru several pitches and then stopping on a pitch.
Is this a computer problem or an Audacity problem? (I uninstalled Audacity and reinstalled it, the 2.3.0 version)
Here is the data on my computer:
CPU: Intel Core i3-7100
GPU: Intel HD 630
HDD: Toshiba DT01ACA100 1TB
RAM: Hynix HMA81GU6AFR8N-UH 1x8GB
MBD: Dell Inspiron 3668
Oh, I guess step one is Audacity doesn’t apply anything during recording.
One major difference between background noise, hum or other sound and your voice is the duration. If you have one sound there for an extended time, it must be noise therefore we shall memorize it and subtract it from the show. This works a treat when you’re having a business conference call to the home office in Geneva from a noisy office, but a good deal less well when you’re trying to sing. The filters tend not to pass music at all.
One more. Skype, Chat and other communications services can have their own processing and add them to whatever Windows is doing. Make sure you stop dead and close all your chat apps before you record anything critical.
Using the direct mic test in windows, the effect is immediately apparent. I’ll attach a snapshot of a constant volume at the beginning, but within a second, it has dropped to a quarter of the blue line.
I have tried my hardest to find anything about enhancements in the sound control panel, and no results.
John
Well, by golly, you are right. Problem solved. Yeti works, webcam doesnt.
I’m not entirely sure which of the following steps were necessary/sufficient, so I’ll list them all, for others’ benefit.
Uninstalled/reinstalled Audacity (2.3.0)
Fresh started computer, per your suggestion: In WIN10: Shift-Shutdown, Wait and then Start.
Found “enhancements” on the playback page, not the recording page, (where I had looked for it before.) Therefore I was able to:
Sound > playback > Speakers USB Audio Device > Properties > Enhancements > Disable