PSRAM

[podaen]

Is psram auto in use when selected from the menu?

[pschatzmann]

In my understanding it is just a precondition that you can use the related API.
You can further information on the internet: e.g. https://thingpulse.com/esp32-how-to-use-psram/

[podaen]

Is the buffer been set to the dma then?

[pschatzmann]

I don't understand your question...

[podaen]

Is the buffer of the client malloc in to the psram with the api?

[pschatzmann]

Of cause not: it is expected that memory is allocated by calling ps_malloc.
This can be avoided by doing this: https://www.pschatzmann.ch/home/2022/05/30/esp32-and-psram/

[podaen]

It's beter do it static over dynamic. There is room engough to do it. As you said the ps_malloc is the way to do it.. With the buffer in psram the esp runs much smoother as I tried to explane you in #208. I hope this helps to get you over the line to make your own buffer in stead of using the api.

[pschatzmann]

In my understanding you can not allocate data is psram statically...

[podaen]

I meant ps_calloc, is better for arrays. heap_caps_malloc_extmem_enable(limit) will do no good, because the incoming size is unknown.

[pschatzmann]

Sure, if it is under your control, but sometimes you have to use external libraries and in this case heap_caps_malloc_extmem_enable is your only option...

[podaen]

We are talking only about clients and streams, no tls because the psram can't handle encrypted data.

[podaen]

Sure, if it is under your control, but sometimes you have to use external libraries

You are relying on the Arduino api for the incoming audio data. Some things are just designed for general data. The WiFi is working stable but it's far from finished. You still can use the WiFi client if that is what you mean.

[podaen]

heap_caps_malloc_extmem_enable is still malloc, not calloc.

[podaen]

I have figure it out where we went wrong. It's right like you discribe on your website that unfortualy the PSRAM can not be alloced in to the global variables. But that doesn't mean you can not do them in to the member list. And then see if there is psram available. And this is the answer my friend!