Carbon-Dated Projects

A long time ago, while i was waiting for the Internet to come around, i designed and built some pieces of digital audio hardware.

• Modifications to the Sony DTC-1000/PCM-2500/Aiwa-1000 first generation DAT recorder (disabling copy protection and make the 44.1k recording sampling rate, error correction indicators, A/D-D/A-passthrough, source-level and peak-hold meter functions accessible to users). Access to the added functions using the available keys and display elements, and via remote control. (Unfortunately you don't see these nice machines around any more - many of the drive chassis failed prematurely due to resin creepage in microswitches.)
  
  
• Digital audio outputs for Sony TCD-D3 (simple) and PCM-701 (involved a 15:16 clock multiplier).

I also had a habit of building peripheral drivers whenever i needed them and couldn't find them, e.g.:

• HP-IL drivers for Apple II/CPM.[mid-80ies]
• DVI to HPLJ2 driver (in Pascal, on SUN 3/50). [mid-80ies]
• ASPI driver for Seagate ST-01 controllers, rmt-style library, and patches to GNU tar (gnu-ish port) on DOS [1993].

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