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23 April 2025 at 12:28 pm
#1026
Yes the FIR filter needs to be designed and exported for the sample rate that the processor/amp uses for FIR filters. (I don’t know the specifics w.r.t. Linea Research amplifiers.)
Some 96kHz processors run their FIR filters at 48 kHz, so the FIR filter needs to be designed for 48 kHz (and not the core 96 kHz). And Lake uses 12kHz, 24kHz and 48 kHz for FIR filters, even though the input processing runs at 96 kHz.
In our products, if you have a design created for a particular sample rate, you can easily export for a different sample rate by first changing the “design sample rate”.
Regards,
EA Support