ADAU1701: longer delay with external RAM

Hello,

Unfortunately this is not possible with the 1701 -- please see https://ez.analog.com/message/8940#8940

This feature will be available for the ADAU1452, see https://ez.analog.com/message/138108#138108

although this chip includes no internal audio ADCs and DACs.

If your delayed signal only needs limited frequency response (such as voice quality), there's a few tricks that allow you to trade bandwidth for delay time. Both of these sound better to me than they have a right to:

Twice the delay at 10KHz bandwidth: https://ez.analog.com/message/74499#74499

Four times the delay at 5KHz bandwidth: https://ez.analog.com/message/8940#8940

Best regards,

Bob

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Thank you,
EZ Admin