SPO vox

This board host the vintage General Instruments SP0256-AL2 aka SPO256-AL2 Narrator. This  IC was very popular in the 1980s.

The SPO256-AL2 produces all 59 phonemes of the English language. They can be sustained to generate signing.

It has a very recognizable 8-bit metallic sound.

These phonemes are individually addressable and can be chained together to create words or small sentences.

Our board adds two absent functions on the chip: pitch or inflection control and volume control.

The chip allows looping the last phoneme to generate interesting noise or steady MIDI notes.

MIDI control

  • MIDI note ON (first phoneme on note 36)
  • MIDI note OFF
  • Pitch Bend (can be used while the note is ON)
  • Velocity
  • Volume CC1 (can be used while the note is ON)

CV control 

  • Phoneme
  • Volume
  • Pitch

 

Custom vocabulary

Build your own vocabulary by stringing allophones together in the following syntax :

(note the + marker to extend the duration of the allophone)

music: MM YY1 UW2 +600 ZZ IH +400 KK1 
ZERO: ZZ YR OW
ONE: WW AX AX NN1
technology: TT1 EH KK1 NN1 AA +100 LL AX +400 JH IY
electronic: IH IH LL EH KK1 TT1 RR2 AA +200 NN1 IH +200 KK1

 

Firmware

 

Vocabulary

135.000 words to get you started …

Ableton MIDI effect rack

SPO manual for Emy/terminal

QR Code

Media

 




Terminal

The casing allows adding any of the Vox modules inside just by removing four screws.
As with Emy, Terminal can be used in a CV-controlled environment or act as a MIDI instrument.

You can install the various firmware on the SD card before powering the device.

A pair of shunts allows the user to connect Terminal either as a MIDI USB unit or as a host for a USB keyboard for text entry.

On request, a serial TRS jack MIDI Type B connector can also be added.
(note: not all firmware are supporting MIDI yet. MIDI support is under development)

Please  check this page for more information: https://www.polaxis.be/

Features :

100 % Emy compatible, including adding additional voices
USB port for power or MIDI or USB connection
Optional TRS jack MIDI Type B connector
USB host connector for computer keyboard
Shunts (must be removed when connecting a keyboard, otherwise, they must be placed vertically)
Line in & out stereo jack 1/4″ (line in only used for the Robovox module)
Trimpot to adjust the audio level input (only used for the Robovox module)

Emy user manual

QR Code

Terminal hardware manual

QR Code

Terminal in action