MATRIXSYNTH: Speak and Spell

Showing posts with label Speak and Spell. Show all posts
Showing posts with label Speak and Spell. Show all posts

Tuesday, June 18, 2024

The GND-1T (Speak & Glitch GND-1T) | Circuit Bent Speech Chip Synthesizer

video upload by Shirato_Noise

Follow-up to the Speak & Glitch GND-1

"I'm very happy to finally be able to introduce this instrument. The GND-1T is a synthesizer developed by Richard van Hoesel and is the successor to the GND-1. The major improvements are the touch screen and the addition of built-in drum sounds. This allows for the simultaneous generation of circuit bent speech chip sounds and chaotic rhythms.

This video introduces the preset sounds and twists them a bit. No additional effects.

Check out his web page for further details and manuals for this instrument.

As a backstory, I have provided a few sample sets for the drum sounds of this instrument. These are my acoustic drums, percussion sounds, and some unique synthesized electronic drum sounds. I hope you enjoy them!"

Tuesday, January 17, 2023

Tele Blender | by Error Instruments

video upload by Cinematic Laboratory

Don't miss 3:31 on for some abstract synth art.

"First encounter with the Error Instruments Tele Blender, an algorithmic CV 'wheel of fortune' that outputs weird CV sequences offering endless variations of noise, blips, textures and experimental weirdness. On its own, practical use is limited to mono noise studies but as a noise or CV source you can spice up your patches with serious salt and red hot chili."

Thursday, November 24, 2022

Speak & Glitch GND-1 | Circuit Bent Speak Chip Synthesizer

video upload by Shirato_Noise

"This compact synthesizer seems to contain every imaginable Speak Chip-based bent sound we can imagine. I have great appreciation and respect for Richard for making this instrument a reality."

Friday, November 11, 2022

Speak and Glitch GND-1 circuit bent speech chip synthesizer

video upload by GND-1

"Here's a short promo for our new Speak& Glitch GND-1, a Circuit Bent Speech Chip Synthesizer unlike any other. Based on an accurate emulation of the speech chip inside the popular Speak and Spell game, the GND-1 pushes into previously impossible circuit bending realms letting you create loops, rhythms and synth sounds in totally new ways.

In addition to the stereo audio output from the synth chip, the MIDI-out rhythm generator on the GND-1 was driving a software 808 drum machine. But it can drive any midi compatible device, whether it's software, hardware, or even mechanical, both via USB midi and a dedicated 5-pin DIN connector.

See for more info.

p.s. the 'flickering' OLED display on the GND-1 in the video is just a video artifact."

Thursday, December 02, 2021

Circuit Bent Speak & Spell

video upload by NOISEBUG

"Glitchy vocal synth with a built in LFO & a freeze button allowing the vocal sound to be frozen at that moment, creating oscillator type sounds. This unit has a 3.5mm mono audio output, making this unit a versatile insane glitch machine!"

Friday, October 29, 2021

Bogus Noise Speak Math

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Not the best pics but you don't see these often. This appears to be the first Bogus Noise Speak & Math featured on the site. You can find a few demos of the Bogus Noise Speak & Spell in previous posts here.

Sunday, October 24, 2021

Diabolical Devices Circuit Bent Talking Teacher

Note: Auction links are affiliate links for which the site may be compensated.

via SYNTH CITY Reverb

"This Coleco Play and Learn Electronics Talking Teacher has been circuit bent by Diabolical Devices in 2020. The left 3 switches toggle various looping, the switches to the right and bottom offer various glitches, and the knob next to the screen controls clock speed. There are some instructions on the button to get you started and there are plenty of sounds and happy accidents to be explored and sampled. Includes AC power adapter."

Wednesday, April 14, 2021

Circuit Bent Speak and Spell with Sequencer

video by SMMP

"Circuit Bent Texas Instrument Speak and Spell - loads of glitches, loops, LFO (thanks @casperelectronics for the inspiration!), synth tone, pitch pot, body contacts and a SEQUENCER inside a VHS :) enjoy!"

Another Circuit Bent Speak and Spell

video by SMMP

"Circuit Bent Texas Instrument Speak and Spell - loads of glitches, loops, LFO (thanks @casperelectronics for the inspiration!), synth tone, pitch pot, body contacts...loads of fun!"

Wednesday, October 14, 2020

Circuit Bent Speak & Read First Play

Dj Puzzle Dj Puzzle

"I bought this circuit bent speak & read from Derrick Carter’s store feature and couldn’t be happier lol. The back of the battery cover says bent by FastMatt 2006. Sorry about the bad crop job this is just a quick first impression. I’ll capture a more detailed video soon. #circuitbent"

Tuesday, July 14, 2020

Speak And Spell Breakout 1.2, Refurbishing A Modular Speak And Spell


"I Built this heavily #modified #modular speak and spell a few years ago, and never properly finished it and sadly it just got more and more broken, i borrowed all of the relays from it once and never got it up and running again. till today!"

Friday, June 12, 2020

Speak & Hell - Speak & Spell bending 1986 Noir mat

Note: Auction links are affiliate links for which the site may be compensated.
OrgAniK Organik

Speak & Math bending by Organik07
LFO ic555 & CV gate

via this auction

Speak & Math bending
Speak & Hell Black
Synthétiseur Vocal parle en anglais.
audio out mini Jack
CV gate, pour synchroniser avec un synthé.
Dual Tones.
LFO qui module le Pitch et les 2 Tones
Fonctionne avec 4 piles LR14 ou adaptateur 5/6volt 600mA

Friday, January 10, 2020

One Off CasperElectronics Bastl Circuit Bent Analog Wave VCO Synth

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

Update: not sure if this is a circuit-bent Speak & Math or if it's just the case with other internals. If you know feel free to leave a comment.

"The Diamond Dreams MT-404 Custom by Peter Edwards of Casper Electronics & Bastl fame.

This is portable live performance art in your hand; the stuff usually reserved for names like Patton and Elfman.

It is a prototype. The only one.

I am including the original notes and instructions that accompanied this instrument. A lot of time was spent considering how the musician/user would interface with the device respecting what it was capable of at extremes of deviation from the manufacturer's specification.

Note the little catch so the battery compartment door can't get away from you. The battery compartment is clean and it will run on batteries. It also comes with a wall wart style a/c cable so you can plug it into an outlet in studio and not worry about battery life.

This level of technical design and craft is truly exceptional. R2-D2 love songs, Aleatoric effects, gibberish, future-retro sci-fi grime and garbage.

Someone is going to be very happy."

Thursday, December 05, 2019

Speak&SID - CPC MIDI IN SID + AY Synth

Published on Dec 4, 2019 Michael Wessel

"Turn your CPC into a powerful MIDI IN SID + AY Synthesizer!

A new mode has been added to the Speak&SID firmware - the MIDISID mode.

In this mode, Speak&SID can receive MIDI messages over its UART header to which a 10 $ MIDI breakout board is connected via Dupont cables. The Microkorg is used solely as a MIDI controller here (no sounds from the Microkorg). The incoming MIDI messages are then received by the CPC by reading the Speak&SID serial buffer byte by byte, and analyzed and translated into (polyphonous) notes for the internal CPC AY 3-8912 soundchip. At the same time, these notes are also sent to the (ARM)SID chip on the Speak&SID card, which is then also playing the received notes (currently only 1 voice - but for the AY we are using all 3 voices). With a little bit of additional work on the CPC machine code program, all of the SID's capabilities will be controlled via MIDI and/or the CPC keyboard keys in the near future, hence turning a CPC with Speak&SID into a powerful and inexpensive, versatile SID + AY 3-8912 MIDI IN realtime synthesizer. It is even possible to add one more soundgenerator to the mix - the SpeakJet chip is also a 4channel sound synthesizer! Interestingly, as you can hear, the SID and AY sound chip are slightly detuned from each other. Not sure why this is... maybe I need to tune the SID or AY frequencies a bit? Or maybe that's an ARMSID inaccurarcy? Have to try with my real 6581."

Speak&SID CPC - 2nd Demo, Line Out Recording + LEDs!

Published on Nov 9, 2019 Michael Wessel

"This time, a line out recording of Speak&SID CPC. Last video was taken from the camera's mic. Speak&SID's GPIO LEDs are controlled by the CPC, not the firmware. The 4 LEDs, from left to right, are the GATE bits of the corresponding SID cannels, and the 4th LED indicates changes in filter resonance. As the LEDs are controlled by the CPC / SID Player software, it is also possible to turn this LED display into a volume level indicator display, or other kinds of "lightshows". It is easy to patch the ASM for that (all the SID registers are modeled in software there).

In the meantime, the 2nd PCB revision boards arrived. So I should be able to ship out the first Speak&SID cards early December."

Sunday, November 03, 2019

Amstrad CPC Speak&SID - First Demo of SID Player

Published on Nov 2, 2019 Michael Wessel

"First demo of Speak&SID with the DaDMaN's version of Simon Owen's SID Player. Thanks to DaDMaN from the CPC Wiki Forum for sharing his branch of this player with me, which he had already customized for the CPC! Indeed, it was very little effort to get it running with Speak&SID. I only needed to change the output port and a couple other bits. And worked out of the box, to my surprise! And now - enjoy RoboCup and Commando on the authentic SID 6581.

In case you should be wondering why the sound volume goes low and sounds tinny for a couple of seconds at some point in the video - Speak&SID also feeds into the CPC's internal audio speaker, so at that point I am turning off the amp and let the CPC speaker roar for a bit."

Some additional info in via Mechael Wessel:

"I am cooking up a SID soundcard for the Amstrad CPC

Maybe of some interest to SID / CPC lovers?

'CPC Speak&SID' is a SpeakJet-based speech synthesizer for the CPC, and a SID sound card! It works with the original SID chips, but SwinSID and ARMSID are also valid options. The video shows the original 6581 in action.

The sources for CPC Speak&SID will be made open source soon. The production costs for the card are in the 50 $ range (without the SID chip of course - builders have to source one themselves) Speak&SSID uses the SpeakChip chip for the speech synthesizer, an ATMega 8535 at 16 MHz as the microcontroller, and a Xilinx 9536 CPLD. The SID chip is connected directly to the CPC address and databus though; the CPLD generates the 1 MHz clock signal from the CPC's 4 MHz clock, as well as the other control signals such as R/~W etc.

Unlike the Commodore, the CPC uses IO ports instead of memory mapped registers for hardware interfacing. Hence, the 29 SID chip registers starting at address &d400 to &d41c in the C64 memory are mapped to the CPC's Z80 IO ports &fac0 - &fadc. C64 SID BASIC programs can be ported easily to Speak&SID, simply by replacing the POKE's (PEEK) with OUT (INP) commands, and by adjusting the SID base address.

For the SID Player shown in the video, I am using a version that was already customized by DaDMaN from the CPC Wiki Forum, and it is based on Simon Owen's SID Player for the Z80."

Wednesday, October 16, 2019

Emy firmware update: now with the Speak & Spell sounds

Published on Oct 16, 2019 Polaxis

"Added the beeps and the voice from the Speak&Spell to Emy’s latest firmware. Here in the standalone Terminal version with wireless keyboards.⁣"

Tuesday, June 25, 2019

What Do George H. W. Bush, She-Ra, and He-Man Have in Common?

A giant mother f'ing Speak n Spell is what.

via @deejayiwan

"@matrixsynth George H. W. Bush talking to Jack and Leslie Wadsworth (He-Man and She-Ra), during a 1987 Masters of The Universe Power Tour. Behind them is a giant Speak & Spell. It doesn't get any more 80’s than this.... #AI #synth"

Saturday, June 15, 2019

Texas Instruments Speak & Read with 1/4" Output Jack

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Vintage Texas Instruments Speak & Read with original vinyl case and accompanying book with a 1/4" jack added. Tested with batteries and works great, some very slight cosmetic scuffs here and there and printing fading on the case, and an extra 1/4" output jack has been added for speaker or headphone amplification."

Tuesday, April 30, 2019


Published on Apr 29, 2019 Audio Wanderer

"WARNING: This video may potentially trigger seizures for people with photosensitive epilepsy. Viewer discretion is advised

The most known voice synthesizer of all times. Built in the 70s with technology than only can rival at that time with the dharma initiave. Conceived as a teaching machine it uses changed across the time, being is easy way to be hack through circuit bending techniques the reason that this unit is still a SOUND BLAST FROM THE PAST

Download a sample library from this awesome teaching/glitching machine here:"

Sunday, March 10, 2019

How Speech Synthesizers Work

Published on Mar 9, 2019 The 8-Bit Guy

This one is in via Soviet Space Child.

Sunday, December 02, 2018

Mutable Instruments Plaits 19/30 : vowel and speech synthesis part II

Published on Dec 2, 2018 DavidH

"this is like a Speak & Spell :)"

Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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