Which Mac models included a DSP chip that could be accessed by regular application code? (e.g. not hidden inside the mouse, WiFi chip, disk read/write chip, GPU, etc.)

Did they ship before or after the Next Cube?


The Quadra 660AV and Quadra 840AV had AT&T 3210 DSPs, and as far as I know were the only Macs to include a DSP as standard. The DSP was used by PlainTalk for speech recognition.

They were both released in 1993, well after the NeXTcube which was released in 1990, and the original NeXT Computer which was released in 1988 and already had a Motorola 56001 DSP.

  • Since other brands are mentioned, I'll add Atari Falcon; released in 1992, included Motorola 56001 DSP.
    – Krackout
    Mar 17 '21 at 14:14
  • ... as did the SGI Indigo (1991). Mar 17 '21 at 15:21

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