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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

xx   SOUND

Speech recognition for a personal computer system. Covers the history and describes a practical system for the exprimenter.
BYTE Jul 1977 (v.2#7) pg. 64

Give an ear to your computer. A speech recognition primer for computer experimenters.
BYTE Jun 1978 (v.3#6) pg. 56

Talk to me. Add a voice to your computer. Store digitalized speech in computer memory and play it back through this voice synthesizer. Est. cost: $35.
BYTE Jun 1978 (v.3#6) pg. 142

Analyze speech and music with this fast fourier transform (FFT) subroutine written in 6800 assembly language.
BYTE Feb 1979 (v.4#2) pg. 108
Added Info BYTE May 1981 (v.6#5) pg. 458

The TRS-80 speaks. Using BASIC to drive a speech synthesizer. An overview of the voice synthesizer peripheral for the TRS-80 and the ease with which applications software can be modified to include the voice unit.
BYTE Oct 1979 (v.4#10) pg. 113

Dissecting the TI (Texas Instrument) "Speak & Spell" toy. How to operate the toy under computer control.
BYTE Sep 1980 (v.5#9) pg. 76
Added Info BYTE Feb 1981 (v.6#2) pg. 20
Added Info BYTE Apr 1981 (v.6#4) pg. 150

An extremely low-cost voice response system uses infinite clipping to produce acceptable computer speech.
BYTE Feb 1981 (v.6#2) pg. 36

Articulate automata: An overview of voice synthesis. The physiology of speech and how voice synthesizers are programmed.
BYTE Feb 1981 (v.6#2) pg. 164
Correction BYTE May 1981 (v.6#5) pg. 232

Build a low-cost speech-synthesizer interface for both the TRS-80 and the Apple II. Called the Micromouth, it features a stored vocabulary of 144 expressions. Estimated cost: $120.
BYTE Jun 1981 (v.6#6) pg. 46

A Votrax vocabulary. A vocabulary of 139 words which can be stored in 770 bytes. For use with the Votrax or other speech synthesizers.
BYTE Jun 1981 (v.6#6) pg. 384

Build an unlimited-vocabulary speech synthesizer. Utilizes the Votrax SC-01 integrated circuit which functions as an electronic model of the human voice. Est. cost: $150.
BYTE Sep 1981 (v.6#9) pg. 38
Added Info BYTE Dec 1984 (v.9#13) pg. 48

A voice for the Apple II without extra hardware. Use an Apple II and a standard cassette-tape player to store and recall human voices with relatively good fidelity.
BYTE Nov 1981 (v.6#11) pg. 499

Voice synthesis for the Radio Shack Color Computer. Explores digital recording and playback techniques.
BYTE Feb 1982 (v.7#2) pg. 258

Use voiceprints to analyze speech. The first step in designing a speech-recognition system is analyzing the spectral content of speech.
BYTE Mar 1982 (v.7#3) pg. 50

Give your Apple II a voice. A speech-development system using the Radio Shack Speech Synthesizer.
BYTE May 1982 (v.7#5) pg. 446

Build the Microvox text-to-speech synthesizer. Part 1. Hardware. The 6502 microprocessor in this intelligent peripheral device translates plain English text into phonemes to control a Vortrax SC-01A. Est. cost: $215.
BYTE Sep 1982 (v.7#9) pg. 64

A new horizon for nonvocal communication devices. Using the Panasonic hand-held computer as a personal, portable speech prosthesis.
BYTE Sep 1982 (v.7#9) pg. 166

Build the Microvox text-to-speech synthesizer. Part 2. Software.
BYTE Oct 1982 (v.7#10) pg. 40

An ADPCM (analog/digital pulse coded modulation) speech analysis and synthesis (storage and reproduction) circuit built around the Oki MSM5218RS chip. Est. cost: $89.
BYTE Jun 1983 (v.8#6) pg. 35

Voice lab. Part 1. A system for digital speech synthesis and analysis. Several modular routines are useful for application programming and experimentation.
BYTE Jul 1983 (v.8#7) pg. 186

Voice lab. Part 2. Menu-driven routines for digital speech synthesis and analysis. Written in UCSD Pascal.
BYTE Aug 1983 (v.8#8) pg. 456

Talker. A routine developed for TRS-80 and Votrax'z Type-'N-Talk makes the writing of "talking" programs easier.
BYTE Oct 1983 (v.8#10) pg. 447

Build the H-Com scanning communicator for use by handicapped people . A prestored vocabulary of words and phrases can be transmitted upon receipt of a single command. Others are spelled out one character at a time.
BYTE Nov 1983 (v.8#11) pg. 36

Build a third-generation phonic speech synthesizer. Uses a Silicon Systems SSI263 chip. Est. cost: $100.
BYTE Mar 1984 (v.9#3) pg. 28
Added Info BYTE Jun 1984 (v.9#6) pg. 38

The Lis'ner 1000. Build a low-cost, high-performance speech-recognition system for the Apple II or another 6502-based system. Est. cost: $150.
BYTE Nov 1984 (v.9#12) pg. 111

Cyber Alert. A talking intruder alert. Voice synthesizer circuit talks about any impending break-in, thus discouraging the criminal. The concept can also be applied to talking clocks, talking toys, talking doorbell, etc. Est. cost: $80.
COMPUTERCRAFT Jan 1992 (v.2#1) pg. 44

VOCUS. Add voice control to your PC. Build a combination speech-recognition and text-to-speech synthesizer unit that attaches to the serial port of your computer. Part 1. Speech input module. Est. cost: $70.
COMPUTERCRAFT May 1993 (v.3#5) pg. 66

VOCUS. Add voice control to your PC. Part 2. Building the speech output module. Est. cost: $90.
COMPUTERCRAFT Jun 1993 (v.3#6) pg. 48

Speech board makes anything talk. Synthesizer may be used alone or with virtually any computer. Est. cost: $150.
COMPUTERS & ELECTRONICS Dec 1982 (v.20#12) pg. 47

How to interface the Texas Instrument "SPEAK & SPELL" learing device to a Sinclair or Timex computer.
COMPUTERS & ELECTRONICS Feb 1983 (v.21#2) pg. 39

Computer-controlled stored-word speech synthesizer is driven by the parallel printer port. Est. cost: $75.

Experiments in voice recognition. (1) Stand-alone circuit will recognize eight words and short phrases from almost any speaker, and light a corresponding LED in response. (2) Stand-alone circuit uses eight vocal inputs to control a motorized model car or other project.

Computer-controlled voice synthesizer (speech processor) can be programmed to prompt the computer user and/or to provide audio feedback.
HANDS-ON ELECTRONICS Dec 1986 (v.3#7) pg. 55
Correction HANDS-ON ELECTRONICS Mar 1987 (v.4#3) pg. 6
Added Info HANDS-ON ELECTRONICS Apr 1987 (v.4#4) pg. 6
Added Info HANDS-ON ELECTRONICS May 1987 (v.4#5) pg. 4

How to attach a speech processor to the Radio Shack Color Computer. Some tips.
HANDS-ON ELECTRONICS Jul 1987 (v.4#7) pg. 4

Computer speech synthesizer receives standard ASCII code (via RS-232 port) and converts it into spoken words.
HANDS-ON ELECTRONICS Oct 1988 (v.5#10) pg. 30
Correction HANDS-ON ELECTRONICS Jan 1989 (v.6#1) pg. 5

Short program for the Apple II computer will produce a gross approximation of a human voice through its built-in speaker. The "words" are those actually recorded on a cassette and decoded by the computer.

How to record a vocal response on a tape recorder connected to a computer, and then play back the voice under program control at appropriate places in the program to give the illusion that the computer is talking. Application to a TRS-80 is described.

Two intriguing and useful Apple II peripherals. (1) Heuristics Speechlab. (2) Mountain Hardware Apple Clock. Includes program and use suggestions.

Speech synthesis for the SWTP computer. Tips on interfacing and using the Votrax synthesizer (originally designed to interface to the TRS-80 computer).

Advances in speech synthesis. Includes the codes for the "Digitalker" IC vocabulary, a TRS-80 hardware interface schematic, etc.
KILOBAUD MICROCOMPUTING #53 May 1981 (v.5#5) pg. 134

Computer control of a Texas Instrument "Speak & Spell" toy. Uses an interface from Percom Data Company. Includes a 6502 machine-language driver and a BASIC driver.
KILOBAUD MICROCOMPUTING #57 Sep 1981 (v.5#9) pg. 168

A super synthisizer. Build the Speak'N'Sing 2 speech synthesizer which brings hi-fi speech and sound to computing. Est. cost: $190.
MICROCOMPUTING Aug 1982 (v.6#8) pg. 82

The intelligent toaster. Experiments in computer control. A look at voice input and output systems.
MICROCOMPUTING Dec 1982 (v.6#12) pg. 52

Speak-Easy. A voice digitizer for the Radio Shack TRS-80 model III.
MICROCOMPUTING #85 Jan 1984 (v.8#1) pg. 100
Correction MICROCOMPUTING #87 Mar 1984 (v.8#3) pg. 38

This is your computer speaking. A plug-in board for a Commodore 64 that lets it verbalize human-sounding speech. Includes the necessary software.
MODERN ELECTRONICS [2] Jun 1986 (v.3#6) pg. 68
Correction MODERN ELECTRONICS [2] Sep 1986 (v.3#9) pg. 5

A general-purpose speech synthesizer. This ASCII-to-speech processor can be used with a variety of devices to generate human-sounding speech.
MODERN ELECTRONICS [2] Oct 1987 (v.4#10) pg. 32
Added Info MODERN ELECTRONICS [2] Jan 1988 (v.5#1) pg. 71
Correction MODERN ELECTRONICS [2] Apr 1988 (v.5#4) pg. 5

Speech-recognition circuits. How they function and details of the VCP200 sound-recognition chip from Radio Shack.
MODERN ELECTRONICS [2] Jan 1989 (v.6#1) pg. 64

Introducing "Speechlab", the first hobbyist vocal interface for a computer. You "train" the computer to react in a certain way to each sound, therefore, it is not limited to a specific language or set of sounds. Est. cost: $250.
POPULAR ELECTRONICS [1] May 1977 (v.11#5) pg. 43

Speech synthesizer you can build for use with an S-100 bus computer. Part 1. Est. cost: $180.
POPULAR ELECTRONICS [1] Sep 1982 (v.20#9) pg. 20

Speech synthisizer you can build for use with an S-100 bus computer. Part 2. Software required and practical applications.
POPULAR ELECTRONICS [1] Oct 1982 (v.20#10) pg. 43

Speech recognition. Part 1. Build a speech-recognition circuit.
POPULAR ELECTRONICS [2] Dec 1999 (v.16#12) pg. 74

Electronic speech synthesis. How it works.
RADIO-ELECTRONICS Feb 1982 (v.53#2) pg. 62

Build this five-IC speech synthesizer which can be operated by pushbuttons or from a computer. Est. cost: $150.
RADIO-ELECTRONICS Jul 1982 (v.53#7) pg. 43

Interfacing the Timex Sinclair 1000 or ZX81 computer to the real world. Part 4. Add speech capabilities and how to free up the computer's port for other uses.
RADIO-ELECTRONICS Nov 1984 (v.55#11) pg. 70

Voice reproduction. Get 5 seconds of synthesized speech from a 16K Timex-Sinclair 1000 computer.
RADIO-ELECTRONICS Sep 1985 (v.56#9) pg. 12 (ComputerDigest)

Speech synthesizer for your Commodore-64 computer is built around the SPO256-AL2 single chip N-Channel MOS LSI device.
RADIO-ELECTRONICS Aug 1986 (v.57#8) pg. 10 (ComputerDigest)
Added Info RADIO-ELECTRONICS Nov 1986 (v.57#11) pg. 21, 22

Speech synthesizer. Theory and construction details of a stored-word speech system that you can connect to any personal computer having a parallel printer port. A simple BASIC program uses LPRINT statements to create speech output. Est. cost: $75.
RADIO-ELECTRONICS Dec 1988 (v.59#12) pg. 80, 78
Added Info RADIO-ELECTRONICS Feb 1989 (v.60#2) pg. 14

Experiments in voice recognition. Build a stand-alone device which incorporates the VCP200 speaker-independent word recognizer IC. Use it to control things using up to 8 voice commands.
RADIO-ELECTRONICS Apr 1991 (v.62#4) pg. 49