Thanks for posting the screenshots of the meter output, btw.
It gives a very good indicator of where the audio in most "saber idle hum" is present.
Below 250, not much
Above 4K, not much
Given that the small speaker has little problem producing higher freq sounds, I think we'd be safe assuming that any difficiencies in volume at higher freq are in the sound itself.
For the low range, if we output'd saber sounds into a real speaker with a nice 20-20Khz response range, and ran the test meter, we could see what portion of the limited low end freq response is due to the small speaker, and what portion is due to the actual sound samples themselves.
The samples may well have been run through compressor/limiter prior to committing to asic, to make most use of limit sample resolution and sample rate.
Hard to say what the sample resolution is (6-bit?) but it would seem that its at most, an 8K sample rate based on nyquist limit.
6-bit, 8K, Mono doesn't take up very much space on the asic, for sure.
tightwads could have given us better sound for two pennies more.
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