Uploaded April 2013 | Updated September 2026, 3 weeks ago
In my senior year in high school I built an audio digitizer for the Atari ST. It plugged in to the cartridge port and used a single channel of an ADC0816 to grab 8-bit samples. Playback was through the ST's YM2149 using volume envelope modulation, so that's ~4 bit or so. The speaker is in the monitor, so that's why you get a lot of 'airvent' shots. Sorry for the distortion-- it actually sounds less 'gritty' in person, but my cellphone camera doesn't pick up the sound very well unless it's real close-- then it clips. :-/
I liked DBASIC a lot (very fast, easy access to assembler and without any TOS/GEM stuff to confuse me).
It was about ~60 seconds of audio and the disk was ~800K, so somewhere in the ballpark of ~13KHz sampling rate.
In my senior year in high school I built an audio digitizer for the Atari ST. It plugged in to the cartridge port and used a single channel of an ADC0816 to grab 8-bit samples. Playback was through the ST's YM2149 using volume envelope modulation, so that's ~4 bit or so. The speaker is in the monitor, so that's why you get a lot of 'airvent' shots. Sorry for the distortion-- it actually sounds less 'gritty' in person, but my cellphone camera doesn't pick up the sound very well unless it's real close-- then it clips. :-/
I liked DBASIC a lot (very fast, easy access to assembler and without any TOS/GEM stuff to confuse me).
It was about ~60 seconds of audio and the disk was ~800K, so somewhere in the ballpark of ~13KHz sampling rate.
