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- LANtastic(TM) Voice(TM) Adapter
-
- The LANtastic Voice Adapter lets you save sound and speech on disk
- for playback later.
-
- When used with supporting software, it provides the capability to
- digitize sound, preserving it in nearly its original fidelity. And
- whereas most voice cards tie up your computers during operation,
- the LANtastic Voice Adapter works completely in the background.
-
- When you use the adapter with LANtastic NOS version 3.0 and above,
- you can send voice messages across your LANtastic network. It's
- easy. Just pick up the telephone-style handset provided with each
- Voice Adapter, bring up a handy on-screen menu, and talk. You can
- use the Voice Chat feature to carry on a realtime conversation, or
- the voice message can be saved in digital format for playback later
- - just like regular E-mail.
-
- Developers. Make your own software laugh, sob, growl, warble, wail,
- sing and talk with the LANtastic Voice Adapter and the LANtastic
- Voice Programmer's Interface(TM) (sold separately). The LANtastic
- Voice Programmer's Interface is a set of routines for interfacing
- to the LANtastic Voice Adapter. 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 and much more. Or add high-fidelity sound effects
- and music to any program. 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 it back
- through an amplifier and speakers. The VPI(TM) is sold directly
- through Artisoft. For more information about LANtastic VPI, call
- 602-293-6363.
-
- LANtastic Voice Adapter Specifications.
-
- Features:
- * Full-duplex operation (simultaneous record and play)
- * 8-bit companded D/A and A/D conversion for clean, noise-free
- reproduction
- * Line level audio in and out for connecting external sound source,
- recorder or amplifier
-
- Hardware compatibility:
- * IBM PC, XT, AT, PS/2 model 30, 30-286 and compatibles, and
- 386-based IBM PC bus compatibles.
-
- PC requirements:
- * One floppy drive
- * 8-bit expansion slot
- Software requirements:
- * PC DOS 3.1 or higher (3.2 not recommended)
- * LANtastic NOS version 3.0 and above when used on a LANtastic
- local area network
-
- Dimensions:
- * Height: 4.0 inches (including brackets)
- * Length: 5.0 inches
- * Depth: 0.8 inches
-
- Power requirements:
- * +5V @ 330mA
- * +12V @ 33mA
- * -12V @ 33mA
-
- D/A conversion:
- * 8 bits/sample
- * mu255 law companded
-
- Sampling rate:
- * 7990.1Hz
-
- Bandwidth:
- * 200Hz - 3400Hz
-
- Selectable jumpers:
- * J1: Enable DMA channel 1
- * J2: Enable DMA channel 3
- * Both channels may be enabled to support full duplex operation
-
- External interface:
- * 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.
-
- Voice Programmer's Interface:
- * Available to developers directly from Artisoft
- * The 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 or
- 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.
-
- Basic VPI Routines:
- Adapter_Status Find out about the Voice adapter
- 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