23 lines
876 B
Markdown
23 lines
876 B
Markdown
# sid-measurements
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SID chip measurements
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* 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
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* file names: *cutoff*-*resonance*.wav or bypass-*volume*.wav, filter mode according to parent folder name
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The measure.bas program in the [A-SID repo](https://github.com/sdangelo/asid) 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](https://www.orastron.com/asid#c64).
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## 8580
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Performed on C64C, ser. no. HB41416598E, made in Hong Kong.
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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.
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## 6581
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TBD
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## Analysis
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IRs can be extracted using the getIR.m GNU Octave script in the [A-SID repo](https://github.com/sdangelo/asid).
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