The IR isn't a problem, it' sufficient to scale it to 16 bit, even if we get less resolution...what I need is to modify the 16bit convolution FW to a 24bit, the I2S and the DMA work with a 16bit resolution (wire, audiomod,...libraries)
I've modify the DD4W FW code (convolution) to work with 32bit data but the libraries (data structures, DMA,...) work with 16bit data; are there different libraries working at 32 bit resolution ?
What I need is to program the DMA and the I2S interface to interface a 24bit codec WM8960) with the Teensy4.0 board using 32bit data structures.