Amstrad SSA-1 Speech Synthesizer

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Amstrad SSA1 box cover
The bundle

A Speech Synthesizer from Amstrad based on the SPO256 Speech Synthesizer

Software

  • |SAY,@<string> - Converts a string af ASCII text to speech
  • |ECHO,<mode> - Activates text to speech conversion on text printed to the screen.
  • |APHONE,<allophone>[,<allophone>] - Send allophones directly to the interrupt driven allophone buffer.
  • |ROOM,@<value> - Find out how many free locations in the allophones buffer.
  • |QUIET - Clears the allophone buffer.
  • |SPON - Activates the speech interrrupt event.
  • |SPOFF - To prevent output of data from the allophone buffer.
  • |SPSTATUS,@<value> - Read the status of the speech processor.
  • |SPOUT,<allophone>[,<allophone>] - Sends allophones directly to the soundprocessor.

Technical Specs.

The clock frequency (passed to the speech chip) is fixed, the exact frequency is unknown (?)

Uses I/O port: #FBEE

Port FBEEh READ: 

 bit7   status 1 (0=busy, 1=ready/data request)
 bit6   status 2 (used by 3D Stunt Rider, Roland in Space, Glen Hoddle)
 bit5-0 unknown/unused
 (the above status bits are probably the /LRQ and SBY pins)
 (unknown which is which one though?)

Port FBEEh WRITE: 

 bit7-6 unknown/unused (should be zero)
 bit5-0 allophone number

Supported Games

  • 3D Boxing
  • 3D Stunt Rider
  • Alex Higgin's World Snooker / World Pool
  • Darkwurlde
  • Glen Hoddle Soccer
  • Roland In Space
  • Tubaruba

Pictures

  • Amstrad SSA1

  • Frontpage

  • Inside

  • Inside

  • Inside

  • Inside

  • ScreenPacked.jpg
  • ScreenBoxed.jpg
  • FullSSA1.jpg
  • FullManual Tape.jpg
  • SSA1 FullBox.jpg

Examples of the Amstrad synth in use

{{#ev:youtube|fesVxipNaw8|300}} {{#ev:youtube|v8WKbKK3Apg|300}}

Other Speech Synthesizers

Weblinks

Manual

  • Amstrad SSA1 (Manual)

  • Frontpage

  • Contents

  • Page 1

  • Page 2

  • Page 3

  • Page 4

  • Page 5

  • Page 6

  • Page 7

  • Page 8

  • Page 9

  • Page 10

  • Page 11

  • Page 12

  • Page 13

  • Page 14

  • Page 15

  • Page 16

  • Page 17

  • Page 18

  • Page 19

  • Page 20

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