How to choose a big memory size DSP for the signal delay design?

Hello everyone and SigmaStudio teams:

I am trying find the chip which has the big memory size that can support the huge delay function,

I have tried the delay 600ms at 1452, but this will use all 1452 memory space, and this only has "delay function block" in the design,

If I want to add other function, I will need more memory space to support it.

I know that maybe I need multi-DSP to achieve the huge delay function, any suggestion for the big size memory DSP(1466 or other DSP)?

or there is another design to achieve the huge delay function?

Thanks for reading my question!

Best Regard,

Alvis.

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