Subject: Re: 60 Hz hum causing problems with speech recognition From: Malcolm Slaney <malcolm@xxxxxxxx> Date: Wed, 17 Jun 2009 11:13:20 -0700 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--Apple-Mail-23-667227943 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Removing ground loops can be hard---especially when there are computers and networks involved. But I think an easier solution is to use an audio transformer to isolate the systems. Here is what my favorite audio engineer recommends. I love my Jensen transformer. - Malcolm The ones I was using were from Jensen Transformers (http://www.jensen-transformers.com). Lately I've been using ones from Rapco/Horizon (LTI-100) as they're cheaper and have actual balanced XLR outputs. --Apple-Mail-23-667227943 Content-Type: text/html; charset=US-ASCII Content-Transfer-Encoding: 7bit <html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Removing ground loops can be hard---especially when there are computers and networks involved.<div><br></div><div>But I think an easier solution is to use an audio transformer to isolate the systems.</div><div><br></div><div>Here is what my favorite audio engineer recommends. I love my Jensen transformer. </div><div><br></div><div>- Malcolm</div><div><br></div><div><br></div><div>The ones I was using were from Jensen Transformers<br>(<a href="http://www.jensen-transformers.com/">http://www.jensen-transformers.com</a>). Lately I've been using ones from<br>Rapco/Horizon (LTI-100) as they're cheaper and have actual balanced XLR<br>outputs.<br></div></body></html> --Apple-Mail-23-667227943--