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Apple II Computer Info

wires and speaker connectors _inside_ the GS's case (I damaged a pair

of speakers having to wedge the 1/8" phono's tail up against the back

of the case).

The only stereo/digitizer board you can still purchase new is

the Alltech (formely Econ) SoundMeister card. It's an average card,

it works but nothing to say beyond that. I list it here because you

can still buy it, not because it was an exceptional card. There are

of course other cards out there, but they're mostly mediocre ones

(speaking of mediocre, avoid the AE SonicBlaster, that was a poorly

designed card that wasn't properly shielded and had problems with

output at certain levels I recall).

Mitchell Spector

[email protected]

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From: [email protected] (Mitchell Spector)

Newsgroups: comp.sys.apple2

Subject: Re: Sound Boards

Date: 13 Aug 1998 02:53 EDT

Organization: Opus One

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References: <[email protected]>

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In article Jeff Lemke <[email protected]> writes...

>Can anybody give me a comparison of the sound capabilities of the

>Applied Engineering Phasor and the native sound capabilties of the IIgs?

The Phasor:

Well the Phasor was an optional plug-in board designed for the

Apple II Plus and IIe (which had no sound capabilities built-in,

other than a speaker which could be toggled on/off to produce a

click or beep like PC's). It used 4 General Instrument AY-3-8913

sound chips, an SSI-263 speech chip (with the option of adding

a second) and had a built-in 4 watt amplifier which could output

in true stereo. There were DIP switches on the card which would

allow it to emulate other Apple II sound cards, such as the old

Mockingboard or Echo+ speech card (I was never able to get the

latter emulation to function).

Each AY-3-8913 (identical to the AY-3-8910 as far as I know,

only it came in a smaller package) could produce 3 independant

voices, plus a 4th channel for a white noise generator. With all

the chips combined, that gave it 12 voices, 4 white noise channels

and 1 or 2 synthesized speech channels. The AY-3-8910 could be

used to produce sounds and music and was commonly used in old

arcade machines in the 80's (not to mention a couple of computers,

like the TI99/4a, Intellivision, Atari ST, etc). It was limited

Apple II Computer Technical Information : Apple II Family Hardware Info

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