Problems with 7200 Sound Input

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2 total messages Started by David Baker Sun, 15 Oct 1995 00:00

#2382

Author: David Baker
Date: Sun, 15 Oct 1995 00:00

23 lines
1231 bytes

Anyone have any ideas why I can't record sounds using a Sony microphone?
It's an ECM 959-A stereo mike and I'm plugging it directly into the Sound
In port of my 7200.

Looking at the manual I see that the 7200:

"supports the Apple PlainTalk Microphone...and a standard stereo
(miniplug-to-RCA) cable adapter for connecting stereo equipment to your
computer"

I guess the clue is here, but what is a miniplug-to-RCA adapter?

Elsewhere it says:

"...you can use the Apple PlainTalk Microphone which comes with some
Macintosh computers (or a compatible line-level microphone) to record your
voice or other sounds."

I using the Sound Control Panel but all I 'record' is silence.

Thanks in advance.

David

Re: Problems with 7200 Sound Input

#2383

Author: Peter Ceresole
Date: Sun, 15 Oct 1995 00:00

28 lines
1786 bytes

In article <ACA6ED9696681183D@miro.demon.co.uk>,
david@miro.demon.co.uk (David Baker) wrote:

>"supports the Apple PlainTalk Microphone...and a standard stereo
>(miniplug-to-RCA) cable adapter for connecting stereo equipment to your
>computer"

Yes; been there, failed as well. Note the wording:  "Apple PlainTalk
Microphone...AND a standard stereo (miniplug-to-RCA)..." etc. They are
different cases.

The Apple plaintalk mike for the PowerMac has a minijack with an extra
connection in the middle to supply power to the microphone. If you look
inside the Mac, you'll see the connection in the end of the socket. If you
use a standard unpowered microphone, like the mikes used with, say, 475s,
the level is so low that it doesn't register. Unless the Sony you are using
has that power supply, or at least an output level to match that of the
Apple kit, it won't work.

If you record from your hifi or a Walkman (or a built in CD-ROM), with the
volume cranked up until you can see the response on the Mac level meter,
everything works fine.

So you could record via your hi-fi, or record a cassette and then play that
in via a Walkman. Or you could buy the Apple microphone. No, I haven't done
that either... 

Peter

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