🚀 go-pugleaf

On Oct 19, 1:37 am, Bob I <bire...@yahoo.com> wrote:
> D wrote:
> > On Oct 17, 10:13 pm, Bob I <bire...@yahoo.com> wrote:
>
> >>The problem is likely caused by the combination of "speakers" being
> >>disconnected by the insertion of the head phones AND the volume knob of
> >>the speakers being cranked up rather high. Now the speakers are
> >>amplifying the hum of the little power wart.
>
> >>D wrote:
>
> >>>On Oct 17, 1:44 am, "Richard Crowley" <rcrow...@xp7rt.net> wrote:
>
> >>>>"D"  wrote ...
>
> >>>>>It does not hum when no headset is plugged in.
>
> >>>>Then you can eliminate any problem with the computer,
> >>>>the sound card, or any software including drivers, etc.
>
> >>>>>One of the headsets is brand new and checked.
>
> >>>>What does "checked" mean?  Do either of the headsets work
> >>>>OK on another computer?
>
> >>>>>Yes, the hum changes when I move the headset around the room: the
> >>>>>further from the computer case the louder.
>
> >>>>I would take a wild guess that it has a shielding or grounding problem.
>
> >>>>>Yes, it hums when I try using a differen computer mic: both headsets.
>
> >>>>The problem may be with the basic design if both headsets
> >>>>show the same symptoms.
>
> >>>Thanks Richard Crowley for your suggestions!
> >>>The hum is from speakers, not from the case.
> >>>Yes, either of the headsets work OK on another computer.- Hide quoted text -
>
> >>- Show quoted text -
>
> > Thanks Bob I for your explanation!
> > How can the speakers amplify the hum of the little power wart if they
> > are disconnected by the insertion of the head phones?
> > A Sony ECM-T6 microphone and another desk-top microphone don't hum! A
> > new Koss sb/45 headset and Philips SBC HM300 headset hum from their
> > microphones.
> > How to make Koss sb/45 headset microphone work?
> > Best regards,
> > Dima
>
> The speakers are only disconnected from the audio source, the "wall
> wart" is still powering the speakers amplifier. Try turning the volume
> knob down or unplug the speakers little power supply.
>
>
>
> - Hide quoted text -
>
> - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
Thanks Bob I for your explanation!
The speakers are in a headset. There are no other speakers. A "wall
wart" is not powering a headset.
Why does the hum appear from a headset microphone only, not from a
separate microphone?
Best regards,
Dima