Curious that its got a nonstandard 46.875 kHz samplerate rather than 44.1 or 48.0 kHz.
Not that it matters since its only output appears to be on the analog side of the DAC.
This is a surprisingly well-featured sampler/sequencer for the price!
Not that it matters since its only output appears to be on the analog side of the DAC.
This is a surprisingly well-featured sampler/sequencer for the price!
24MHz/512=46.875KHz
Edit: or 12, 6, 3...
24MHz/512=46.875KHz
12MHz/256=46.875KHz
6MHz/128=46.875KHz
3MHz/64=46.875KHz... 5.2 Clock
The clock circuit is the same as that used in the CC1
except that the sampling rate is set to 93.75kHz instead
of one of the more traditional audio rates. This is specifically
done to improve the performance of the SRC chip.
An uncommon clock frequency reduces the odds that mix
products between the incoming clock and the internal
clock fall inside the PLL loop bandwidth of the SRC.
What does this have to do with the Teenage Engineering EP-133? It doesn't have USB audio or SPDIF, so no standard samplerate clock to conflict with.
Relying on spacing between sample clock harmonics to keep beatnotes out of the passband isn't great engineering practice. I have to do that in a relatively-exotic RF application, admittedly, but I wouldn't advertise it as a feature. :) And I'd never choose that approach at audio frequencies. There's just no need.
1 sample from the EP-133 is 1.0629251700680271 samples at 44.1kHz, or 0.9765625 samples at 48kHz.
(But, again, it doesn't export/synchronize audio digitally, so it probably only matters if directly importing samples.)