Subject: Re: 60 Hz hum causing problems with speech recognition From: Laszlo Toth <tothl@xxxxxxxx> Date: Wed, 17 Jun 2009 10:03:01 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>On Tue, 16 Jun 2009, Tarun Pruthi wrote: > 2. Is there a standard way to get rid of the 60 Hz hum and ensure clean > recordings for the purposes of speech recognition? You didn't mention what sort of speech recognizer you are using, but the spectral analysis step of such systems usually ignore _everything_ below 100-150 Hz. (Some harmonics may still remain then, of course). Laszlo Toth Hungarian Academy of Sciences * Research Group on Artificial Intelligence * "Failure only begins e-mail: tothl@xxxxxxxx * when you stop trying" http://www.inf.u-szeged.hu/~tothl *