SPU: Difference between revisions
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== Overview == | == Overview == | ||
All versions except CXD2941R require | 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: | |||
** Pitch modulation | |||
** ADSR-Envelope | |||
** Looping | |||
** 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 === | ||
* CXD2922Q (PU-7, PU-8 | * CXD2922Q (PU-7, PU-8-11) | ||
* CXD2925Q (PU-8 from -21 and up, PU-16, PU-18, PU-20) | * CXD2925Q (PU-8 from -21 and up, PU-16, PU-18, PU-20) | ||
=== DSP + CD- | === DSP + CD-decoder + CD-decoder's RAM + SPU + audio-DAC === | ||
* CXD2938Q (PU-22, PU-23, PM-41 up to PM-41-61) | * CXD2938Q (PU-22, PU-23, PM-41 up to PM-41-61) | ||
=== DSP + CD- | === DSP + CD-decoder + CD-decoder's RAM + SPU + SPU's RAM + audio-DAC === | ||
* CXD2941R (PM-41-71, PM-41-82) | * CXD2941R (PM-41-71, PM-41-82) | ||
Latest revision as of 10:34, 18 April 2024
Overview[edit | edit source]
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:
- Pitch modulation
- ADSR-Envelope
- Looping
- Digital reverb
All versions except CXD2941R require 4 MBits / 512 KBytes of external DRAM. CXD2941R has this RAM internally.
Revisions[edit | edit source]
Dedicated SPU[edit | edit source]
- CXD2922Q (PU-7, PU-8-11)
- CXD2925Q (PU-8 from -21 and up, PU-16, PU-18, PU-20)
DSP + CD-decoder + CD-decoder's RAM + SPU + audio-DAC[edit | edit source]
- CXD2938Q (PU-22, PU-23, PM-41 up to PM-41-61)
DSP + CD-decoder + CD-decoder's RAM + SPU + SPU's RAM + audio-DAC[edit | edit source]
- CXD2941R (PM-41-71, PM-41-82)