Famicom Expansion Port Sound Module (EPSM)

$60.00

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Description

PLACEHOLDER LISTING TO GAUGE INTEREST.

Famicom Expansion Port Sound Module (EPSM)

The Expansion Port Sound Module, EPSM for short. Is a new device made for the Famicom that has never really been used.
This device is based on the NES version which can be found here.
The basic idea is to add a lot more audio capabilities to the NES without having to add expensive hardware to each and every cart.
It’s cheaper to get a slightly pricier expansion adapter than adding audio hardware to multiple games.
The EPSM would have been possible to make as early as 1985 though in a bulkier version since the slimmed down version of the chip did not come as early.

Features:

  • Genuine Yamaha YMF288 FM Synth Chip
  • Adds 15 new sound channels to the Famicom for future homebrew support
    • 3 Square wave channels, also capable of noise
    • 6 FM Synth channels with Hard Panning Stereo support
    • 6 Rhythm channels featuring 6 different ADPCM Drum Recordings with Hard Panning Stereo support
  • 2 different Addressing modes
    • Direct
    • Fallback mode
  • 3.5mm Jack for Stereo Output

Source and Support

Please note that although this is an open source noncommercial project Muramasa Entertainment has received permission to manufacture the EPSM from Perkka the creator of the EPSM. Please note that support is limited and before purchasing please check the Github page to see more information on the product. Also please feel free to ask questions on the NESDEV Discord on the #chiptuning or #hardware channels.

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