Distortion with some VS1053 instruments playing high notes
Posted: Thu 2021-03-04 23:48
I have a VS1053 chip on my board, playing well in all respect except:
- on certain instruments (trumpet, MIDI Program 56) and others to some degree, I get distortion on higher notes.
I'm sending MIDI through SPI to the chip.
No other audio or data inputs.
Output is through a headphone, or in this case, a desktop speaker. Same result - distortion on the high notes.
MIDI velocity is 50.
I've testing with another product (with another vendor's synth chip) and do not hear distortion.
I've create a video demonstrating the problem.
- It this a known issue?
- is there a fix?
- what else can I send to help diagnose it?
Thanks
Dave
- on certain instruments (trumpet, MIDI Program 56) and others to some degree, I get distortion on higher notes.
I'm sending MIDI through SPI to the chip.
No other audio or data inputs.
Output is through a headphone, or in this case, a desktop speaker. Same result - distortion on the high notes.
MIDI velocity is 50.
I've testing with another product (with another vendor's synth chip) and do not hear distortion.
I've create a video demonstrating the problem.
- It this a known issue?
- is there a fix?
- what else can I send to help diagnose it?
Thanks
Dave