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ShareWare OnLine Volume 2 (CMS Software)(1993).iso
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!VPI.TXT
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1993-05-04
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{LANtastic(TM) Voice Programmer's Interface(TM)}
Make your software laugh, sob, growl, warble, wail, sing and talk with
the LANtastic Voice(TM) Adapter and the LANtastic Voice Programmer's
Interface (VPI(TM)).
When used in conjunction with the LANtastic Voice Adapter
(soldseparately), LANtastic VPI makes adding sound and speech to your
software easy. Using a set of simple, straight-forward commands, you
can create educational and training programs on disk or CD-ROM that
actually give verbal instructions to students. You can develop voice
mail, "talking" software demos, music synthesis, sound effects and
much more. Using the tape in and out jacks on the Voice Adapter, you
can record from a CD player, tape recorder, microphone or other
external sound source, then play back later through an amplifier with
speakers.
The LANtastic VPI is a set of routines for interfacing to the
LANtastic Voice Adapter. VPI uses a structure called the Voice Command
Block (VCB). This block is similar to an NCB or MCB in the NETBIOS. It
contains pointers to blocks of data which can be used for PLAY and
RECORD. Commands can be no-wait which means control returns to the
calling program immediately while the VPI works in the background.
When the VPI command completes, the user's POST routine is called.
The Artisoft LANtastic Voice Adapter is a low-cost, IBM compatible
expansion device which converts between audio/voice signals and a
digital data stream. When used in conjunction with supporting
software, it provides the capability to digitize spoken messages,
preserving them in nearly their original fidelity.
LANtastic VPI is sold to developers directly through Artisoft. For
more information, call 602-293-6363.
{Specifications}
{Hardware compatibility:
{} LANtastic Voice Adapter, which is compatible with IBM PC, XT, AT,
PS/2 model 30, 30-286 and compatibles, and 386-based IBM PC bus
compatibles. The Voice Adapter requires an 8-bit expansion slot
and PC DOS 3.1 or higher (3.2 not recommended)
{Basic VPI routines:
Adapter_Status Find out about the Voice adapter
Reset Reset the Voice adapter
Deinstall Takes VPI out of memory
Cancel Cancel a pending VCB
Send Sends a buffer to PLAY channel
Silence Sends silence to PLAY channel
Receive Receives a buffer from RECORD channel
Threshold Wait for sound to reach a certain loudness and then
begin Receive from RECORD channel
{External interfaces available on the LANtastic Voice Adapter:
{} P1-Handset, electret, 0.2V peak-to-peak Standard female,modular
telephone handset jack (M4P4C). Electret microphone input and
output are supported on this connector. Telephone handset is
provided. Electret microphone input is reproduced in the earphone
as long as power is supplied to the board to give the handset the
sound of a "live" line.
{} P2-LINE IN, 100K Ohms@2.5V Female, RCA-type audio jack. Accepts a
standard audio signal for digitizing from an external source. May
be connected to a CD player, tape recorder, or other external
device. This signal is mixed with the microphone input from P1
and is reproduced in the earphone.
{} P3-LINE OUT, 2.2K Ohms @1.2V Female, RCA-type audio jack.Provides
a standard line-level audio signal. May be connected to a tape
recorder or an external amplifier to record or broadcast the
output signal.