Quote:
Originally Posted by pandy71
It is not so different - different is in Amiga 1000 - there is high order lowpass filter there. Every generation of Amiga has simplified filtering.
I have test signals already - generated by AP software for 16 bit 32000 then resampled to 28604 in SoX - there are 3 sets of signals, 8 bit, 16 bit and 14 bit on 16 bit (16 bit audio files, volume reduced by 4 then increased by 4). All files are stereo. 8 bit are 8svx, remain are wav. In total there is over 150MB - need to check how to compress them lossless and need to upload somewhere so anyone interested can download them and play on Amiga - I assume that PC with free software may be used as audio analyzer.
And you can compare it as we comparing analog signal.
Listening tests... anyone may propose own method for subjective testing - if you have ideas on this please share it - thank you.
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The filters in a1200 and a4000 do differ from older Amiga models. See
https://bel.fi/alankila/modguide/interpolate.txt for more information.
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