Synthesis and Sequencing on the Sony Playstation Portable

September 03 2008 - PSPSeq 3.01 is now available!

January 19 2009 - Check out the official PSPSeq tutorials!

PSPSeq is a free homebrew application for composing music on the Sony PSP handheld game system. PSPSeq contains both realtime synthesis and sample playback capability, along with multiple FX modules of widely varying types for modifying instruments in countless ways. PSPSeq also has a powerful and unique step sequencer for triggering samples and arranging loops into full songs.

Key features of PSPSeq:
  - up to 16 independent audio tracks per song
  - a wide variety of synthesizers from traditional virtual analog and FM to Karplus-Strong
    and unique digital oscillators with parameter controls rarely seen in commercial synths
  - WAV file playback with looping, pitch shift, and configurable start/end points
  - many FX algorithms from digital filters and waveshapers to bitmasks and decimation
  - all synthesizer parameters can be set to unique values on a per-step basis
  - step sequencer with configurable step length, swing, highly accurate BPM, and tap tempo
  - probabilistic sequencing: the decision to retrigger to be based on a 0-100% probability
    rather than a boolean yes/no operation
  - song sequencing with 100 different loops per song, 1000 measures per song, and loop
    repeat capability
  - load and save of synthesizer presets between songs
  - record loops and songs to WAV
Some of the improvements over PSPSeq 3.00 include:
- added 3.xx build for direct 3.xx compatibilty - fixed pitch bend to work for both higher and lower frequencies - added support for reporting memory for > 4GB memory sticks - fixed bug with accessing menus in SONG mode - fixed bug in BFM modulator generator - fixed bug in clearing steps in a loop - fixed bug in displaying VOL data in EDIT SYNTH menus - fixed bug in copying N and WAV parameters in TRACK menu - fixed bug in SHIFT TRACK when shift values was > 32 - changing control-only step vs "normal" step doesn't quickly toggle in sequencer
PSPSeq 3.01 can be downloaded here.

The PSPSeq user's forum is located here. Additional information can be found in the readme and documentation contained in the zip.

PSPSeq Sample Songs

along with the sample songs listed below, a new netlabel dedicated to music made solely on the PSP has just been launched! it is called Running Jump Records and was started by the talented and enigmatic HS from the PSPSeq forums. the first release was written solely with PSPSeq and it's phenominal! you can download the mp3s here and even the original PSPSeq .SEQ files here. note that these sources require that you have PSPSeq 2.11 as they will not load on PSPSeq 3.01. you can get 2.11 here. download it and be amazed!

music made with PSPSeq 3.01: HS HS HS me

music made with PSPSeq 2.11 and earlier: Mr Brew
a day in the life of an billy of PSPRhythm Alex/AMB rotkin_te HS HS
Hope Part me Alex/AMB

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