Wolle

The decoders need storage space. This leaves less for your own project. If you activate PSRAM, this is automatically recognised and the memory is allocated to PSRAM.

I don't see any reason why this shouldn't work. On some boards the solder bridges are missing:  or you haven't connected SCK to GND? 

Sounds like "BlynkEdgent.run()" needs a lot of processing time. If this is the case, audio and BlynkEdgent should run on different cores

This is a question of data throughput, i.e. the sample rate and the compression ratio. WAV is uncompressed. Audio.loop() should be called 50 times or more per second.

I have never had an m3u8 with "../../",  but the host disconnects when a new playlist is requested. No idea why. With encrypted connections, it takes longer to establish...

When I call up the URL https://radioitaliasmi.akamaized.net/hls/live/2093120/RISMI/master.m3u8, the m3u8 file is transferred and the connection is terminated. The connection remains open for the URLs to the audio sequences, as expected....

great! the connection is not terminated after receiving the m3u8 playlist. The reason for this is that it can take a few seconds to establish a TLS connection. The WiFiClientSecure...

I'm not the I2S expert. As I see it, there are only two sources for the clock.  That is the crystal and the PLL. I2S_CLK_SRC_APLL is in the documentation,...

I don't think so. I2S_CLK_SRC_APLL no longer exists in IDF V5.1. (or I can't find it?)

That looks pretty good, what does the log say?