03-04-2022, 09:38 PM
@eracerr
The lower-bound sampling rate I usually see listed for high fidelity DACs is the CD standard 44.1 kHz. This station, unlike the others, is sampling at half that rate and the i2S driver (the overlay) is telling ALSA/MPD/moOde that this rate is fine as is.
According to TI docs, the DAC chip used on the PecanPi DAC board can deal with a sampling range from 10 kHz to 196 kHz so 22.05 kHz is ok in principle. I'm still suspicious.
Here's a quick test of my hypothesis -
What happens if you go into MPD settings, enable SoX resampling, and set the sampling rate to 44.1 kHz? Can you play WEMU and hear any output now?
Of course I could be driving beyond the range of my headlights here, in which case I'll step back.
Regards,
Kent
The lower-bound sampling rate I usually see listed for high fidelity DACs is the CD standard 44.1 kHz. This station, unlike the others, is sampling at half that rate and the i2S driver (the overlay) is telling ALSA/MPD/moOde that this rate is fine as is.
According to TI docs, the DAC chip used on the PecanPi DAC board can deal with a sampling range from 10 kHz to 196 kHz so 22.05 kHz is ok in principle. I'm still suspicious.
Here's a quick test of my hypothesis -
What happens if you go into MPD settings, enable SoX resampling, and set the sampling rate to 44.1 kHz? Can you play WEMU and hear any output now?
Of course I could be driving beyond the range of my headlights here, in which case I'll step back.
Regards,
Kent