streams-generator-i2s.ino example produces a lot of noise in DAC

[alw1746]

• Sketch: streams-generator-i2s.ino example
• Test: uploaded sketch to test generation of sine wave.
• Hardware: ESP32, HiLetgo PCM5102 DAC with 3 I2S wires+3.3V+GND, audio amp.
• DAC: FLT: Low, DEMP: Low, XSMT: High, FMT: Low, SCK: GND
• Software: ESP 32 Dev Module, Audio Tools 1.1.2 (Aug 2025).
• Test result: significant output noise with default sample rate of 44100.

I've found that any rate above 32kHz causes this issue, ruling out my initial suspicion of a power supply problem. Perhaps the example sketch's sampling rate could be changed to 32000Hz for a better out-of-the-box experience. Thanks for a great library Phil.
streams-generator-i2s.ino.txt

[pschatzmann]

Did you set the log level to Warning as described in the readme or here or here ?

[alw1746]

Aha! worked fine with Warning. Info must have introduced too much latency while writing to serial port. Must pay closer attention to the wiki which is so detailed and informative. I was too keen and jumped straight into the examples. There is so much to explore it's real fun! Thanks Phil.