just look at the past (Yamaha YM2151 + Yamaha YMZ280B)

video upload by Vivi The Pumpkin King

Fun video featuring the Yamaha YM2151 + Yamaha YMZ280B voice chips. Interstingly, you'll find previous posts mentioning the YM2151, but not the YMZ280B. This simply implies the YM2151 is more comonly used in DIY projects.

"The Yamaha YM2151, also known as OPM (FM Operator Type-M), is an 8-channel, 4-operator sound chip used for frequency modulation (FM) synthesis in 1980s arcade games, home computers, and synthesizers."

Key Features

Voices:

Plays up to 8 simultaneous sounds or channels.

Data Formats: Supports 4-bit ADPCM, 8-bit PCM, and 16-bit PCM waveform data.

Memory: Connects to up to 16 MB of external ROM or SRAM for storing sound data.

Output: Delivers stereo output with 4-bit/16-level panning for each individual voice.P

rocessors: Links with an external digital-to-analog converter (DAC) and can connect to a Yamaha YSS225 effects processor for extra channel processing."

"The Yamaha YMZ280B, also called PCMD8, is an 8-channel PCM and ADPCM sample-based sound chip made by Yamaha Corporation in the mid-to-late 1990s.

Key FeaturesChannels and Operators:

It supports 8 simultaneous channels of 8-note polyphony with 4 operators per channel.

Sound Generation: It includes built-in noise generators, LFOs for vibrato and amplitude modulation, and timer circuits.

Companion IC: It requires an external digital-to-analog converter (typically the Yamaha YM3012) to output stereo audio.

Common Uses

Arcade Machines: Atari's Marble Madness (1984) was the first arcade game to use the YM2151 for FM synthesis, leading to widespread adoption in arcade hardware.

Home Computers: It powered the sound boards in sharp computers like the Sharp X68000 and the Yamaha CX5M music computer.

Synthesizers: Yamaha utilized the chip in early budget keyboards and sound modules like the DX21, DX27, and DX100."