Observed this issue with Youtube Music and native Web Radios (Volumio Selection).
When a new stream has been selected, a strong pop/click noise is generated in the beginning of the track. This noise is harmful for the speaker set as it is full amplitude for a short time. Usually two consecutive crackles in a interval of 100ms.
My setup: Pi 3b+ and Suptronics X400 (based on ES9018 chipset).
Network cable connected to the router, 100MB/s.
I2S device selection as Generic or R-PI DAC were able to drive my DAC just fine in Volumio 2.917 without any noise when switching streams.
The issue is happening with versions 3.499 and 3.569 as I experimented, both from fresh SD card installation.
Looking for any guidance please. Is that an issue with Software mixer? Or streaming services (local webradios, including the ones from Volumio Selection) are affected. There is no noise issue when playing local files.
PS: I know there are similar issues reported before here in the community regarding pop/crackles with different DAC devices, so I do not believe is something DAC specific. And none of them have solutions yet, unfortunatelly.