I have been using audacity to remove the hiss from recorded speeches, and it has been working great. But with a particular recording, that sounds just about the same to me, the results are very strange. The hiss does get removed, and it is just about silent, but when the talking starts, going from the silence to the talking, the audio has a feeling of “ramping up” to the talking again, and seems to even have a little hiss with the talking. I read about the Noise Gate from Nyquist process, but couldn’t figure out the settings that might make it solve this, where the movement from silence to talking seemed more natural. Am I describing this clearly. Please help!
Derek, I removed the e-mail address from your user name, otherwise spambots will harvest your address. You will need to log in as derekmhart from now on, password as before.
Please state which version of Audacity you are using (see the pink panel at the top of this page).
Have you tried increasing Sensitivity (which should increase the noise reduction within the speech)? You may need to fine tune “Attack/decay time” too after changing Sensitivity.
Noise Gate can be used to reduce or silence remaining noise between sections of a recording. It will not help noise that remains within the speech or music.
Using Windows 7 64 bit, Audacity 2.0.6, exe installer.