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- Xref: sparky sci.electronics:16853 comp.sys.ibm.pc.hardware:26543
- Newsgroups: sci.electronics,comp.sys.ibm.pc.hardware
- Path: sparky!uunet!destroyer!news.iastate.edu!vincent1.iastate.edu!sehari
- From: sehari@iastate.edu (Babak Sehari)
- Subject: Re: hardware solution for speaker volume ?? help!??
- Message-ID: <sehari.718656602@vincent1.iastate.edu>
- Originator: sehari@vincent1.iastate.edu
- Sender: news@news.iastate.edu (USENET News System)
- Organization: Iowa State University of Science and Technology, Ames, Iowa.
- References: <Bvu35G.5vC@gpu.utcs.utoronto.ca> <1992Oct9.040641.24116@jupiter.sun.csd.unb.ca>
- Date: Fri, 9 Oct 1992 18:50:02 GMT
- Lines: 37
-
- In <1992Oct9.040641.24116@jupiter.sun.csd.unb.ca> q1hl@jupiter.sun.csd.unb.ca (Nameless CS Student) writes:
-
- >In article <Bvu35G.5vC@gpu.utcs.utoronto.ca> darek@gpu.utcs.utoronto.ca (Darek Dabrowski) writes:
- >>I need a simple way to lower the volume of the computer's speaker...
- >>I need the hardware solution, and must be simple. (i am not a pro)
- >>
- >> the speakerconnector is 1--Data out
- >> 4-- +5V
-
- >Simply connect the speaker in series with a variable resistor of
- >maybe 10 or 20 ohms. Speaker volume is a function of current, and
- >the speaker output is constant voltage. At you increase the
- >resistance of the added potentiometer, the current flowing through
- >the speaker will decrease, leading to lower volume. At minimum
- >setting (0 ohms), the speaker will be loudest.
-
- That's one solution but might not really, decrease the sound level that
- much. This is due to the fact that sound is a log creature not a linear
- creature. So make sure to buy logorthmic variable resistor from 10 to 100
- Ohm. Then discounect one speaker wire connect it to one side of the
- variable resistor, connect the other side to the wire already connected to
- speaker, and finally connect the middle head of the variable resistor to
- the other side of speaker which does not have any connection like this:
-
- _____
- From Computer |
- < /
- > <-----| /
- < 8||
- | 8||
- ------------| \
- \
-
-
- With highest regards,
- Babak Sehari.
- --
-