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sid-measurements/README.md
Stefano D'Angelo c2e6ac9c70 links to A-SID
2022-06-03 11:00:06 +02:00

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sid-measurements

SID chip measurements

  • input: sweep.wav - 10 seconds long logarithmic sweep from 20 Hz to 20 kHz, with 2 s silence before and after, sample rate 48 kHz
  • file names: cutoff-resonance.wav or bypass-volume.wav, filter mode according to parent folder name

The measure.bas program in the A-SID repo was used to setup the filter and the audio I/O was taken from the A/V port using the DIY breakout connector described here.

8580

Performed on C64C, ser. no. HB41416598E, made in Hong Kong.

Files in bp-res are separated from the rest as they are from a following measurement session and I didn't match volumes with the previous ones.

6581

TBD

Analysis

IRs can be extracted using the getIR.m GNU Octave script in the A-SID repo.