SPU: Difference between revisions
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== Overview == | == Overview == | ||
All versions except CXD2941R require | Sound Processing Unit of the PlayStation. | ||
* Supports [[Adaptive differential pulse-code modulation|ADPCM]] sources with up to 24 channels | |||
* [[Sampling rate]] of up to 44.1 [[Kilohertz|kHz]] | |||
* 512 [[Kibibytes|KB]] RAM | |||
* PCM audio source | |||
* Supports MIDI sequencing | |||
* Digital effects include: | |||
** [[Pitch bend|Pitch modulation]] | |||
** [[Attack-decay-sustain-release envelope|Envelope]] | |||
** [[Loop (music)|Loop]]ing | |||
** [[Reverberation|Digital reverb]] | |||
All versions except CXD2941R require 4 MBits / 512 KBytes of external DRAM. CXD2941R has this RAM internally. | |||
== Revisions == | == Revisions == | ||
=== Dedicated SPU === | === Dedicated SPU === | ||
Revision as of 11:45, 19 October 2021
Overview
Sound Processing Unit of the PlayStation.
- Supports ADPCM sources with up to 24 channels
- Sampling rate of up to 44.1 kHz
- 512 KB RAM
- PCM audio source
- Supports MIDI sequencing
- Digital effects include:
All versions except CXD2941R require 4 MBits / 512 KBytes of external DRAM. CXD2941R has this RAM internally.
Revisions
Dedicated SPU
- CXD2922Q (PU-7, PU-8 (only the first revision of PU-8, PU8-11)
- CXD2925Q (PU-8 from -21 and up, PU-16, PU-18, PU-20)
DSP + CD-controller + CD-controller's RAM + SPU + audio-DAC
- CXD2938Q (PU-22, PU-23, PM-41 up to PM-41-61)
DSP + CD-controller + CD-controller's RAM + SPU + SPU's RAM + audio-DAC
- CXD2941R (PM-41-71, PM-41-82)