3 ms·

It's honestly very easy to counteract big peaks like those at such high frequencies, especially when you can virtually guarantee that every single driver will h

• jeffbee 6y ago
  Sure, especially if you control the whole package (like a bluetooth headphone would) and double especially if you can rely on your source material having zero spectral content above 15k (many streaming music formats) or even lower (phone calls). But a 20dB cut is pretty dramatic. I use a 5-band parametric DSP with my headphones and it is only capable of 12dB cuts.
  • wtallis 6y ago
    It sounds like "controlling the whole package" is already a foregone conclusion, given the requirement for a fairly non-standard amplifier.
  • nitrogen 6y ago
    -20dB is a multiplication by 10%. Not difficult to implement, but usually not available on manually controlled EQs unless you stack two bands. I haven't actually confirmed this with testing yet, but won't those resonances still increase decay time at those frequencies after equalization? I'd like to see post-EQ waterfall plots.
  • Espressosaurus 6y ago
    I would expect it to be a straightforward signal processing problem if all that's needed is 20dB of suppression across a relatively narrow frequency range. If the frequency response is consistent from MEMS to MEMS, it should be straightforward to simply create a model, invert it, and apply it to the incoming waveform. DSPs these days can be pretty tiny and power efficient so I bet it wouldn't even take up too much power and area to do something like that.