Hi Knob,
so your selfbuilt firmware has audio problems while the original firmware doesnt? In that case I would recommend to look at the working firmware code and compare it to the sdk source. This would require some ARM assembler knowledge and I recommend the non-free IDA disassembler. Have a look at one of my previous posts where I explained how to load a BASE.RKW firmware file if youre not familiar with this. If youve got any further questions, just ask. I havent dealt with sound so far. Also are you interested in getting a real OS running on your player or just modifying that rockchip firmware?
Regards
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