Hi May! To remove noise it is necessary to first create a noise profile. To do this you need to select a short section of the track containing only the target noise. Then choose Noise Removal from the Effects menu and press alt-g for the Get Noise Profile button. Now that the profile is created, select the whole track, call up the Noise Removal dialogue again and tab to OK. Make sure the control above the OK button is set to Remove, not Isolate. Try the default settings first. You can adjust the amount of removed noise by changing the value in the Noise Reduction control (alt-d). To hear other tracks while recording choose Overdub from the Transport menu (alt-r o). To hear the track you are recording in real time choose Software Playthrough (alt-r f). These are toggles so can be switched on and off by repeating the respective command. If you experience timing discrepancies when recording in Overdub mode you need to adjust the Latency Correction in Preferences <Recording (ctrl-p r). Here is a link describing how to do this effectively. http://manual.audacityteam.org/man/Latency_Test Cheers, Robbie From: audacity4blind-bounce@xxxxxxxxxxxxx [mailto:audacity4blind-bounce@xxxxxxxxxxxxx] On Behalf Of Louise May Fami Sent: Monday, February 04, 2013 11:52 PM To: audacity4blind@xxxxxxxxxxxxx Subject: [audacity4blind] Questions Good day, I want to know how to do the noice removal in a proper way. I tried to do it but after I did it I can't hear anything anymore. I also want to know if it is possible to record and play a track at the same time with audacity?? Thanks in advance May