Can anyone identify this item...?

[Karlos]

zipper wrote:
CU Amiga Oct-91 tells it uses specially-written software. HW responds
to 90 KHz (mono) but SW max sampling rate is 28 kHz (mono) and 24 kHz
(stereo). Playback 28 kHz in stereo. Resolution is 8bit.

I wonder if any parallel port samplers ever used high sample rates to perform any oversampling and reduction? If you sampled at say 112kHz mono and used some little MCU to average 4 input samples into one outputsample, youd get a slightly better LSB estimate over normal 8-bit sampling...

Another idea I had once (again would need an MCU) was to use 16-bit sampling and convert this to an 8-bit logarithmic delta that could be pumped over the parallel port (just like normal) and converted back to 16 bit with a custom driver. Not as good as genuine 16-bit, but it should be much better than normal 8 bit...

Any takers?

[Karlos]

16-bit? I never knew there were any genuine 16-bit parallel port samplers. I do recall a 12-bit one that used either the joystick port or the serial port (can't recall which) to get the extra 4-bits of data across in the same timeframe, but short of using low sample rates, I always thought 16-bits was too much traffic for the parallel port (28kHz mono should be do-able if 28kHz stereo 8-bit is though).

[Karlos]

spihunter wrote:
The clarity 16 was a 16 bit serial/parallel port sampler

I thought that was a PCMCIA fitting one...Or was that the Aura?