Sound projects
FM-PAK Circuit diagram, Eagle PCB design by Erik Luppes
FM-PAC/FM-PAC stereo design notes
Convert SCC game to SCC sound cartridge, article by Jipe from the MSX Cafe
Build a switch in a Konami SCC cartridge to use it as a music cartridge or as the original game
Toshiba HX-MU900 upgrades by FRS
Three upgrades where done on the HX-MU900:
1) 256KB SampleRAM
2) MSX-Audio BIOS
3) Audio input (for recording)
The first two are complete and work perfectly. The 3rd upgrade, the audio-input, do not work as well as it should. The HX-MU900 indeed record samples, but there is some problem on the analog portion of this upgrade that is beyond my skills: it records quite some background noise on the samples. I only have digital-electronics knowledge, thats why I can’t figure whats wrong. I’ve included the unfinished 3rd upgrade in the guide in hope that someone with analog electronics skill could help to solve this background noise nuisance.
Pseudo stereo circuit by Pierre Gielen
See also
Updated pseudo stereo circuit in CUC magazine
Description to build 256kB Sampleram into Philips NMS1205 MSX-Audio Jon de Schrijder, 1998
Build 256kB Sampleram into Philips NMS1205 MSX-Audio
PSG stereo mixer by Ivan Isidro
Convert Muziek module to MSX Audio
From Xelasoft SME-3 userguide
MIDI interface
MSX Magazine, Disk-FAN 4/5
Do it yourself MIDI interface,
MIDI interface
Geluidsuitbreidingen (dutch, detailed)
Philips NMS 1205 Music Module Expander (kort)
Philips NMS 1205 Music Module Expander (English)
Toshiba HX-MU900 Music Module Expander (kort)
Toshiba HX-MU900 Music Module Expander (English)
Uitbreiden Toshiba Music Module met 32 kB Sample-RAM
Ombouw Konami SCC-cartridge
