Re: A background rumble appears in a sound from microphone in Sound blaster Live.

Article View: rec.audio.pro

Article #1243

#1243

From: D
Date: Thu, 18 Oct 2007 20:25

47 lines
3523 bytes

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

Technical Details

Message-ID: <1192739128.707693.104660@q3g2000prf.googlegroups.com>

Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!q3g2000prf.googlegroups.com!not-for-mail

References:

<1192480444.829585.145920@i38g2000prf.googlegroups.com> <5ni5ckFhphjeU1@mid.individual.net> <1192566363.452644.49170@z24g2000prh.googlegroups.com> <5nkplvFipom9U1@mid.individual.net> <1192643754.451667.146080@i38g2000prf.googlegroups.com> <eWWrhlOEIHA.4956@TK2MSFTNGP06.phx.gbl>

Show Full Headers

Complete Article Headers

X-Google-Thread: 10cf58,9e1e35596b8a6586
X-Google-Thread: 104a1f,9e1e35596b8a6586
X-Google-Thread: faa3c,9e1e35596b8a6586
X-Google-Thread: 10a302,9e1e35596b8a6586
X-Google-Attributes: gid10cf58,gid104a1f,gidfaa3c,gid10a302,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!q3g2000prf.googlegroups.com!not-for-mail
From:  D <tarb@bk.ru>
Newsgroups: rec.audio.pro,rec.arts.movies.production.sound,24hoursupport.helpdesk,microsoft.public.windowsxp.general
Subject: Re: A background rumble appears in a sound from microphone in Sound blaster Live.
Date: Thu, 18 Oct 2007 13:25:28 -0700
Organization: http://groups.google.com
Lines: 48
Message-ID: <1192739128.707693.104660@q3g2000prf.googlegroups.com>
References: <1192480444.829585.145920@i38g2000prf.googlegroups.com>
   <5ni5ckFhphjeU1@mid.individual.net>
   <1192566363.452644.49170@z24g2000prh.googlegroups.com>
   <5nkplvFipom9U1@mid.individual.net>
   <1192643754.451667.146080@i38g2000prf.googlegroups.com>
   <eWWrhlOEIHA.4956@TK2MSFTNGP06.phx.gbl>
NNTP-Posting-Host: 83.167.116.22
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
X-Trace: posting.google.com 1192739129 12582 127.0.0.1 (18 Oct 2007 20:25:29 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Thu, 18 Oct 2007 20:25:29 +0000 (UTC)
In-Reply-To: <eWWrhlOEIHA.4956@TK2MSFTNGP06.phx.gbl>
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; MRA 4.10 (build 01952); .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; InfoPath.2),gzip(gfe),gzip(gfe)
Complaints-To: groups-abuse@google.com
Injection-Info: q3g2000prf.googlegroups.com; posting-host=83.167.116.22;
   posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0

Reply to Parent Message