Member
Joined 2018
Member
Joined 2018
Hi @CyberPit yes, it's better, but the potentiometer isn't as responsive.
Debounce 3 and potentiometer AUXADC0 in the same position, sometimes a different value appears there:
Param Value: 0.78515625
Param Value: 0.7861328125
And here's how AUXADC5 behaves with debounce 3:
Param Value: 0.1982421875
Param Value: 0.2001953125
Does it happen to you as well, or is it just an anomaly on my hardware?
Do you also use such debounce? It's only a 10-bit AUXADC, but I still feel like something is wrong.
Many Thanks, Tom
Debounce 3 and potentiometer AUXADC0 in the same position, sometimes a different value appears there:
Param Value: 0.78515625
Param Value: 0.7861328125
And here's how AUXADC5 behaves with debounce 3:
Param Value: 0.1982421875
Param Value: 0.2001953125
Does it happen to you as well, or is it just an anomaly on my hardware?
Do you also use such debounce? It's only a 10-bit AUXADC, but I still feel like something is wrong.
Many Thanks, Tom
In addition to this, all the noise that comes to the ADC penetrates into the useful signal, I got rid of this problem by simply installing a 10th order low-pass filter with a cutoff frequency of 3Hz after the ADC.
Many thanks @CyberPit @uriy-ch
debounce didn't quite suit me, or rather, I didn't find a value that solves my problem. Adding a low pass is better, it stabilizes after a while, just need to fix negative values. So far, it seems stable to me.
3 Hz doesn't work for me: there's simply always a 0 at the output. However, 4 Hz works fine.
debounce didn't quite suit me, or rather, I didn't find a value that solves my problem. Adding a low pass is better, it stabilizes after a while, just need to fix negative values. So far, it seems stable to me.
3 Hz doesn't work for me: there's simply always a 0 at the output. However, 4 Hz works fine.
Hi,
I've tested York with ADAU1452 in 8 channel TDM mode. Here is the working configuration:
(York v1 does not support TDM8 right now, it needs one wire to be soldered and a firmware update. I plan to do the fix by end of May for v1)
With clocking from on-board oscillators (which are 22.5792 and 24.576 MHz) max Fs in TDM mode is 48 kHz, with PLL clocking it can be up to 96kHz.
Since in FreeDSP masterclock is generated by ADAU and not connected to Amanero header, ASRC usage is mandatory. So it does not really matter which clock to use for York (in regards to clock's phase noise). So PLL clock is better option in this use case.
Here is my test setup: post
TDM signal look like this: pink - data, yellow - wck. Only two channels are active at this waveforms:
I've tested York with ADAU1452 in 8 channel TDM mode. Here is the working configuration:
(York v1 does not support TDM8 right now, it needs one wire to be soldered and a firmware update. I plan to do the fix by end of May for v1)
With clocking from on-board oscillators (which are 22.5792 and 24.576 MHz) max Fs in TDM mode is 48 kHz, with PLL clocking it can be up to 96kHz.
Since in FreeDSP masterclock is generated by ADAU and not connected to Amanero header, ASRC usage is mandatory. So it does not really matter which clock to use for York (in regards to clock's phase noise). So PLL clock is better option in this use case.
Here is my test setup: post
TDM signal look like this: pink - data, yellow - wck. Only two channels are active at this waveforms: