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.

Ambisonics comes of age. A look at the demise of quadraphonics and the evolution of the ambisonics surround-sound technology (which also uses four speakers). Part 1.
AUDIO AMATEUR 3/1984 [Jul 1984] (v.15#3) pg. 7
Added Info AUDIO AMATEUR 5/1984 [Oct 1984] (v.15#5) pg. 52
Added Info AUDIO AMATEUR 2/1985 [Mar 1985] (v.16#2) pg. 58

Ambisonics comes of age. Part 2.
AUDIO AMATEUR 4/1984 [Sep 1984] (v.15#4) pg. 38

Ambisonics comes of age. Part 3.
AUDIO AMATEUR 5/1984 [Oct 1984] (v.15#5) pg. 36
Added Info AUDIO AMATEUR 1/1985 [Jan 1985] (v.16#1) pg. 56
Added Info AUDIO AMATEUR 4/1985 [Oct 1985] (v.16#4) pg. 58
Added Info AUDIO AMATEUR 2/1986 [May 1986] (v.17#2) pg. 54

True three-channel for stereo. Matrix circuit provides some of the same functions as a Dolby surround system.
AUDIO AMATEUR 1/1986 [Feb 1986] (v.17#1) pg. 34
Correction AUDIO AMATEUR 4/1986 [Oct 1986] (v.17#4) pg. 46

A simple surround system. A decoder that employs a Hafler-type system and separate amplifiers for the ambience speakers.
AUDIO ELECTRONICS 1/1997 [Feb 1997] (v.28#1) pg. 14
Added Info AUDIO ELECTRONICS 6/1997 [Dec 1997] (v.28#6) pg. 44

Build a surround-sound decoder to play back the rear channels available on modern video recordings or MTS stereo broadcast signals.
ELECTRONICS EXPERIMENTERS HANDBOOK 1990 pg. 131, 122

Acoustic field generator. Build this enhanced surround-sound decoder which contains additional circuitry to create wide-left, center-dialogue, wide-right, and subwoofer signals.
ELECTRONICS EXPERIMENTERS HANDBOOK 1991 pg. 113, 147

All about surround sound. A primer.
ELECTRONICS EXPERIMENTERS HANDBOOK 1992 pg. 105

Two circuits for simulating the surround-sound experience with an existing stereo amplifier.
ELECTRONICS NOW Feb 1993 (v.64#2) pg. 8

Acoustic Field Generator II. An automotive version of a sound processor to recover the natural ambience and reflections hidden within any stereo audio signal. Est. cost: $95 (kit).
ELECTRONICS NOW Apr 1993 (v.64#4) pg. 37

"Surround-Sound" enhancer (Delay Enhanced L - R Decoder). Adding this accessory to your hi-fi system recovers ambience information from recordings and adds delay to provide realistic sound. Est. cost: $179.
MODERN ELECTRONICS [2] Feb 1985 (v.1#5) pg. 55

Build a surround-sound switchbox. Designed to accommodate a stereo pair of speakers in the front of your listening room, and another surround pair in the rear of the room. The switchbox is based on the surround-sound effect popularized by David Hafler. Est. cost: $20.
POPTRONIX EXPERIMENTER HANDBOOK Summer 1997 pg. 101

Reverb and surround-effects generator can add a variable time delay (zero to one-half second) to an audio signal. Use as part of a surround-sound system or to create reverberation. Est. cost: $60 (kit).
POPTRONIX HOBBYISTS HANDBOOK Winter 1996 pg. 40

Build a reverb and surround-effects generator. Add a variable time delay to an audio signal. Use with microphone to obtain interesting reverb effects. Est. cost: $60 (kit).
POPULAR ELECTRONICS [2] Apr 1996 (v.13#4) pg. 38

Build a surround-sound switchbox. Control where your home-theater or stereo system's audio is coming from and add surround sound with this handy device. Uses a passive circuit to create the Hafler effect using existing sum and difference signals. Est. cost: $20.
POPULAR ELECTRONICS [2] Nov 1996 (v.13#11) pg. 52

Easy-to-build surround-sound decoder does not include Dolby noise reduction, but still produces good results.
RADIO-ELECTRONICS Apr 1988 (v.59#4) pg. 45, 70
Added Info RADIO-ELECTRONICS Jun 1988 (v.59#6) pg. 22, 24

Acoustic field generator. This project goes beyond simple surround-sound decoders to also generate wide-left, center-dialogue, wide-right and subwoofer signals. Requires six properly arranged speakers. Est. cost: $55. Part 1.
RADIO-ELECTRONICS Jan 1990 (v.61#1) pg. 35

Acoustic field generator. Part 2.
RADIO-ELECTRONICS Feb 1990 (v.61#2) pg. 39, 59

All about surround sound. Everything you need to know about the varieties of surround sound, in the theater and at home.
RADIO-ELECTRONICS Jun 1990 (v.61#6) pg. 51
Added Info RADIO-ELECTRONICS Sep 1990 (v.61#9) pg. 13

Easy surround sound. How to add small rear speakers at the lowest possible cost and with the least degradation in sound quality.
SPEAKER BUILDER 2/1989 [Mar 1989] (v.10#2) pg. 36

Quick home theater on a budget. Construct a pair of inexpensive 4" dipole rear speakers to simulate a "surround sound" system by feeding out-of-phase information to the rear speakers.
SPEAKER BUILDER 7/1994 [Oct 1994] (v.15#7) pg. 18

Simple corner-mounted loudspeaker for use with your television Dolby surround sound receiver.
SPEAKER BUILDER 2/1997 [Mar 1997] (v.18#2) pg. 14

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