Comments (7)
This sounds as if Phi2-clock and that what the SKpico expects differ (DAC scratchy, PWM fine). I assume PAL/NTSC is set correctly in the config tool? Can you measure Phi2 in your machine?
from sidkick-pico.
I tried the tune in question (https://hvsc.csdb.dk/MUSICIANS/M/Mitch_and_Dane/Dane/Seeress_Foretold_My_Future.sid) through the DAC audio on my short board C64C (0.14 DAC only, SKpico_DAC_LED.uf2) and it sounds perfect, no distortion at all.
from sidkick-pico.
from sidkick-pico.
I will try another SK pico in one of my c64s, good to know the dac only works ok, DAN , are you able to try the pwm and dac firmware on your board?
I tried it with the SKpico_v014/SKpico_DAC_PWM.uf2 firmware and it plays fine:
I do have a C128 myself though, will dig it out and see if I mine behaves the same.
from sidkick-pico.
@Braincell1973 I was able to test the DAC firmware with my C128 today and the tune played fine (as a PSID executable, attached). Sorry for the delay, the darn thing had a bad RAM chip so had to repair that first!
I wonder if it is the demo itself that is causing the issue? I have seen one case where the audio in a demo is distorted with SKP (PWM and DAC), yet it plays as a stand-alone PRG quite happily. Might be worth you trying this tune on its own on your machine?
https://drive.google.com/file/d/1FNEtHFiG0NaTitvadJIvSaTmRiaBG085/view?usp=sharing
from sidkick-pico.
Listening to a long SID tune via the DAC output, I somehow managed to hear the same sort of distortion. It crept in after about eight minutes and swamped the audio with white noise on all tunes. I had to power cycle the C64 to clear it. Haven't been able to reproduce it since, so not sure if the problem is related or just an anomaly.
from sidkick-pico.
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Related Issues (20)
- Shorter board with all smd - is that possible? HOT 1
- Clarification on license please. HOT 1
- A few compatibility issues (in common with Nano SwinSID) HOT 11
- Diagnostic reports control port bad. HOT 1
- Add Firmware descriptions please. HOT 1
- POT Inputs Unstable with Atari Paddles Connected? HOT 18
- Addition to License Hall of Shame
- No audio after update from 0.14 to 0.20 HOT 14
- Hardware v0.2 470R resistors split into two lines in BOM? HOT 2
- PCBWay Link HOT 3
- V.2 Firmware 6581 Issue HOT 3
- 6581 emulation not working - but 8580 is? HOT 1
- Video Corruption Hardware Version 1 Firmware Version .202 HOT 4
- SidKick Pico in Eurorack HOT 4
- Slight X drift reading Y and vice versa on paddles HOT 9
- RAD - Hardware Version 1 Firmware Version .202 HOT 4
- PCB Through Hole Size
- Menu Corruption In Hardware Version TWO NTSC HOT 1
- Instructions unclear for uploading to Pico
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