Re: [PLUG] Audio hum when playing Blu-ray movie

2017-06-22 Thread Bill Barry
On Wed, Jun 21, 2017 at 10:10 PM, John Jason Jordan wrote: > On Wed, 21 Jun 2017 15:45:29 -0700 > Denis Heidtmann dijo: > > >I do not know much about what you describe, but you could answer the > >frequency issue by recording the sound into Audacity on

Re: [PLUG] Audio hum when playing Blu-ray movie

2017-06-22 Thread Denis Heidtmann
Clearly if the frequency changes it is not 60 Hz. Is there a chance that it is a feedback of some sort? I have run into problems when had both the input and output selected, but do not recall the details as it was a few years ago. On Wed, Jun 21, 2017 at 10:10 PM, John Jason Jordan

Re: [PLUG] Audio hum when playing Blu-ray movie

2017-06-21 Thread Denis Heidtmann
John, I do not know much about what you describe, but you could answer the frequency issue by recording the sound into Audacity on the laptop. (Assuming you do not have a 'scope.) Is there a chance that the connections which produce the hum include two different AC powered devices with a (not