Audacity Forum

Glad you got it fixed, and yes, please start a new topic.

Try the Delay effect. http://manual.audacityteam.org/manual/h ... delay.html

wildbill001 wrote:Is it ok to post samples?

Yes, that can be helpful. Try to keep them fairly short samples.
See here for how to post them: http://forum.audacityteam.org/viewtopic ... 77#p176977

Check what other programs are running in the background. In particular look out for any voip programs. Shut down (completely) and non-essential programs or services. Does that make any difference?

An option to set the bottom of the plot lower than -90 dB. Occasionally I can hear a frequency in the background but it doesn't show up in the Spectrum plot. I change the window, lower the resolution and fiddle with the display size on the screen to try to get the line to show up, but it never does...

If it's not "overspill", check the exact model on the Dell web site and see if they have any updated sound card drivers.

shibazono wrote:Each new track records not only what I'm recording with my mic, but also the previous tracks, just at a lower level.

How much lower is the level?
Is it possible that the microphone is picking up sound spilling out from the headphones?

Step one. Stop using a USB turntable. They are almost universally rubbish and may damage your disks. That's a bit harsh. Many of the cheaper USB turntables are pretty poor, but there are some better ones. The main problems with the cheap ones are (a) light weight plastic platter does not keep consi...

You could use the notch filter to remove most of the pump sound.

Run the notch filter twice, once with a frequency of 620 Hz and once at 918 Hz. Set the Q to 20 both times.

I still need to test this again with a fresh Audacity SVN checkout, but everything looks good so far... I've applied your modification to revision 11769 and it looks fine. Attached is the code change as a patch. I'm assuming that you would class this issue as a bug rather than a feature, so I've su...