Creating the same filter at a different sample rate..

[EA Support]

EA Support

22 August 2023 at 5:23 pm #686

>> We have been using FIR Designer for many years now. We have created FIR
>> using the same, but the filter created was at a 48Khz sampling rate. Now
>> we want the same filter to be converted to a 96 kHz sampling rate. Can you
>> guide us on the same?

If you have the FIR Designer project file,
– load the project,
– change the ‘Design sample rate’ to 96 kHz,
– on the “Export” tab, double the delay and length settings (in samples), and
– export the filter. All done!

If you don’t have the project file,
– in FIR Designer start an empty project
– load your 48 kHz filter on the Target tab
– change the ‘Design sample rate’ to 96 kHz,
– use the FIR tabs in the workflow to change the Import (which is just an impulse) to match the Target (the old filter)
– the adjust delay and length settings on the “Export” tab and export the filter.

Best regards,
EA Support