Yamaha LSI

[cheater]

Hey guys,

Have you seen these chips?

Complete synth engines on a chip. Much like the OPL stuff, but taken to the limit!

http://smaf-yamaha.com/what/lsi_list.html

Pretty harvestable from old/broken phones... used in very many models = easy access... nice features, too.

The MA-7 is of most interest:

Full control of various audio sources on a mobile phone

Audio processor LSI with high sound quality and high performance suitable for a multimedia-compatible mobile phone

Evolved Hybrid Synthesizer

Hybrid Synthesizer, combining an established and proven FM synthesizer (Note 1) as an optimum method for mobile phone with several synthesizers such as WaveTable synthesizer (Note 2), StreamPCM synthesizer, and AL synthesizer (Note 3), is mounted. Expressive sound can be sounded for game sound effect or BGM as well as ringtone. The maximum simultaneous generation number is 128-tone. In addition, it supports standard formats such as SMF as well as "SMAF" (Note 4) we have put forward.

AL(Analog Lite) Synthesizer

This is a synthesizer to obtain expressive sounds by processing voices using low-pass filter principle. The AL Synthesizer, which has been added since MA-5, is embedded into all FM Synthesizers and WaveTable Synthesizers, and turned into an Enhanced FM/WaveTable Synthesizer.

WaveTable Synthesizer

This is a synthesizer to generate sounds by reading and resynthesizing voice data stored in a memory. Originally, this system can create real sounds since voices are made using the recorded actual sound; on the contrary, a large number of waveform data are required to improve sound quality.

Multifunctional Mixer

...

Multifunctional Effector

... (note: I can't figure out if this is a programmable DSP. I think it is)

3D Positioning Processor

...

Only problem - it's some kinda BGA stuff.. but I think the geniuses here can figure a way to solder it :)

[stryd_one]

Interesting....