A few more Apple ][ cards

From: Henry Broekhuyse <broekh_at_interchange.ubc.ca>
Date: Sun Aug 5 20:15:58 2001

Re:

> Mountain Hardware Supertalker. Some kind of voice I/O card. There are 2
> 3.5mm jhackl sockets (what you'd call mini phone jacks :-)) on it, one
> labelled 'microphone input', the other 'speaker output'. It contains a
> couple of 324 quad op-amps, an LM380 audio amplifier, a small-ish PROM
> (256 bytes, I think), TTL and 4000 series CMOS logic, and a MC3418 (is
> that some kind of Codec?)

Some more information from the "Apple II FAQ":

According to the MCI Supertalker manual, the card plugs into a Slot and lets
you digitize human speech and store it on diskettes. Supertalker can replay
the stored digitized speech via the speaker supplied with the system.

Supertalker software includes the Vocal Preparation System (VPS) for
developing phrase diskettes. A phrase diskette can have numerous tables
containing words, phrases, and complete sentences.

Quality of recorded data is dependent on the selected digitizing rate which
can range from 512 bytes/sec (lowest) up to 4096 bytes/sec (best). Playback
volume has four software selectable levels.

Henry Broekhuyse
Received on Sun Aug 05 2001 - 20:15:58 BST

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