When using a HPF

[TimRP]

When using a HPF, oh say 80Hz 12dB/octave, does it really matter if you do it at the pre amp or at the microphone stage? I guess it would be better to do it at the microphone, right?

[brandondrury]

I've never heard a difference. Some mics give you more options on the roll off. For example, my AKG 414 lets you also roll off at 150Hz (or somewhere close to that value) and that better suit your needs.

You may want to try and hear a difference just to see. I wouldn't expect the difference to be all that different unless the high pass filter circuits weren't set to be exact. Generally, when I use a HPF, it's a source where the low end isn't all that big of deal anyway. I'm not going to worry if it's filtering 80Hz or 95Hz in most cases.

Brandon

[dach]

most of the rolloffs on mics seem to be for convenience... a dedicated eq sounds so much better unless the hpf on the mic is "exactly" what you want or low end is eating up your headroom... then that's a placement problem... Brandon is right though, it doesn't matter too much on sounds that have little to no useable lo end

[TimRP]

For my uses, (for now), its just female vocals. I have been using the HPF on my pre-amp, and will be getting a mic with a HPF tomorrow (if all goes well). I think both roll offs are at 12dB/octave. Pre is supposed to be 75Hz, mic is supposed to be 80Hz.

[Ronan Chris Murphy]

I would gnerally do it at the earlier options all things being equal, so I would do it at the mic.