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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!destroyer!ncar!ncar.ucar.edu!hpoppe
- From: hpoppe@ncar.ucar.edu (Herb Poppe)
- Subject: Re: Stereo sound through internal speaker - left channel only?
- Message-ID: <1992Nov17.230055.27999@ncar.ucar.edu>
- Sender: news@ncar.ucar.edu (USENET Maintenance)
- Organization: National Center for Atmospheric Research
- References: <1eboekINNrg5@usenet.INS.CWRU.Edu>
- Date: Tue, 17 Nov 1992 23:00:55 GMT
- Lines: 30
-
- In article <1eboekINNrg5@usenet.INS.CWRU.Edu> ar619@cleveland.Freenet.Edu
- (Jaime Villacorte) writes:
-
- > I created a System 7 sound file with SoundEdit Pro which
- > contained discrete left and right audio channels. When I listened
- > to it through the external output audio port on my IIci, I get the
- > 2 channel stereo sound that I expected. But when played back through the
- > internal speaker, only the left channel was audible. I found the same
- > effect on a IIfx. The sound wouldn't play at all on an SE.
- >
- > I'm confused...I thought stereo sound was mixed down to mono
- > before playing back through the internal speaker. Or do Mac's playback
- > only the left-channel of stereo sounds? Or did I create a "defective"
- sound
- > file?
-
- According to the DTS Q&A stack:
-
- The only Macintosh models that currently combine the two stereo channels
- into one for playback out of the internal speaker are the Macintosh SE/30
- and the IIsi. All others use just the left channel. If you would like to
- check for the machine╒s ability to do mixing, you can use Gestalt. This is
- documented in Inside Macintosh Volume VI, page 22-70.
-
- No doubt new machines were released since this was written; I don't know
- what the situation is relative to the Quadras and Powerbooks.
-
- Herb Poppe National Center for Atmospheric Research (NCAR)
- hpoppe@ncar.ucar.edu 1850 Table Mesa Dr.
- (303) 497-1296 Boulder, CO 80303
-