Sam21
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the DSP chip is nothing but a small CPU, There is also a memory chip that holds the firmware, you can put the DD decoding algorithm in the memory chip via a firmware update. The DSP then can run the algorithm and decode DD5.1 or Do SBX/EQ etc...
DD certified means it has the necessary permissions from Dolby to put their decoding algorithm in the memory chip and process it with the DSP.
DD certified means it has the necessary permissions from Dolby to put their decoding algorithm in the memory chip and process it with the DSP.