Questions tagged [parametric-eq]
6 questions
3
votes
2 answers
How do software equalizers work?
Recently, I have been studying IIR and FIR filters, and trying to create a parametric equalizer using a microcontroller. More specifically, I use the ADC on it to sample the audio at about 44 kHz, and in between grabbing samples, I use the time to…
Kevin Sullivan
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3
votes
3 answers
Programming a parametric equalizer - preventing clipping
I've been developing a music player for Android for many years, and I've recently started working on the implementation of a parametric equalizer.
I'm having trouble preventing a gain at one band from adversely affecting the gain at a neighbouring…
Tim Malseed
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2
votes
4 answers
parametric eq with FIR filters
Are there any good published approach for designing parametric EQs as FIR filters. The standard techniques discussed in DSP textbooks are frequency-domain-sampling or using Parks-McClellan, which this involves passband, stopband, transition band,…
xaviersjs
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1
vote
2 answers
Continuous EQ defined by a curve
I'm trying to figure out how to implement a continuous EQ filter. I have in the past built a parametric EQ and then built a 10 channel EQ using 10 of these parametric filters. This gave nice results.
However I'm now trying to create a continuous…
Goz
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vote
1 answer
Non-separable, higher-order generalized cosine windows in 2D for images
Higher-order generalized cosine windows define a useful parametric family of windows functions, embedding Hamming, Hann, Blackman, Nutall, etc.:
$$w(n) = \sum_{k = 0}^{K} a_k\; \cos\left( \frac{2 \pi k n}{N} \right)$$
Are there non-separable 2D…
Laurent Duval
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PeakEq center frequency does not match frequency response
Following the Cookbook i calculed these coefficients:
b0: 1,001511976106398860153
b1: -1,999957163328258458179
b2: 0,998488023893601139847
a0: 1,000379791226643000357
a1: -1,999957163328258458179
a2: 0,999620208773356999643
For Fs = 48000, Fc = 50,…
Victor Aurélio
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