Biquad filter dynamic frequency

[MatthieuMv]

Is KFR's biquad / IIR implementation friendly to dynamic frequency ?

I think I can precompute sos parameters but I don't think there is a way to inject new parameters to an existing filter cache.
Is it possible to achieve dynamic filtering in KFR or should I implement a custom filter for that purpose ?

Thank you

[dancazarin]

Changing frequency dynamically is not yet supported out-of-the-box. How often does the frequency change in your case? If audio is being processed in blocks and frequency changes only at block boundary (hundreds of samples, as in VST), crossfade may be used. If per-sample accuracy is needed, I think it will have a huge performance impact because IIR filter design is not intended for per-sample invocation.