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::|CONTENTS

1. Audio Specs
2. Tools
3. Rendering
4. See Also

The Commodore Plus/4 was the most popular model of the Commodore 264 series which also included the Commodore 16 and 116 models all released in 1986. The onboard MOS Technology 7360 Text Editing Device (TED

) is an all purpose interface integrated circuit handling input, video and audio. This was a move backwards for Commodore in computer architecture as the C64 celebrated the separation of audio capabilities into it's own chip. While the TED chip offered the same resolution as the VIC-II and almost 8x as many colors, it does not support sprites.

Audio Specs

---

2 pulse channels; each is on or off (no single volume control)
9 levels' overall volume control (8 levels, 0 is volume off)
Voice #1 : 10 bit frequency control ($FF0E + $FF12 bit0/bit1)
Voice #2 : 10 bit frequency control ($FF0F + $FF10 bit0/bit1), can be turned to pseudo-randomly generated white noise

Tools

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Knaecketraecker -- Windows tracker
TEDzakker -- Plus/4 and C64 native tracker, also for Windows and Linux OSes
LODPlay

, TLCPlay

, 4-Mat TED player

-- editable ASM player routines to compose music
HVTC - High Voltage TED Collection

-- complete collection of TED music, periodically updated
cRTED

-- Windows/Linux TED's music player, HVTC based
TedPlay

- Windows audio player for TED *.c8m, *.prg, and *.sid ( old link, going to disappear soon

) ("visualstudio project" c sources only, no compiled executable binaries there... - same sources available in a git server somewhere

)

Rendering

---

.prg files for this format can be opened in "YAPE - Yet Another Plus/4 Emulator

" and recorded in realtime through Audacity or similar audio software.

See Also

---

Commodore Plus/4 on wikipedia

Memory Map

-- TED audio starts at $FF0E