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Results tagged with software-implementation
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user 224
Questions related to implementation of various algorithms under software environments and programming languages.
5
votes
Accepted
Is possible to get overshoot on bessel filter?
It's not exactly clear what you mean by overshoot. Let's define it as "when filtering a square wave, the max of of the the output should not exceed the steady state of max of the square wave".
In thi …
- 9,522
2
votes
How does MATLAB handle IIR filters?
MATLAB's filter function simply implements the difference equation for a Direct form II transformed filter. There is no reason to digitize the filter as it it's design in the discrete space in the fir …
- 9,522
2
votes
How do I apply a Chebishev filter?
Two cutoff frequencies typically means it's a bandpass filter with the highpass at 0.1Hz and the low pass at 10 Hz.
The low pass cutoff (which is the higher of the two frequencies) determines by how …
- 9,522
7
votes
Accepted
How can I break a filter down into second order sections?
Below the results as sos matrix and gain. Every row in the matrix is a single second order section in the coefficient order of b0, b1, b2, a0, a1, a2. Obviously we need a0=1, and the sections are norm …
- 9,522
12
votes
When to consider double (64 bit) floating point for Audio
You need to know the numerical requirements of your algorithm and choose the precision accordingly.
So let's do the math here: A 32-bit floating point has a 24 bit mantissa and an 8 bit exponent. Thi …
- 9,522
1
vote
Amplitude calculation
You have to be specific about your selection criteria. All you're "big amplitude" are local maxima but there are also other local maxima that don't qualify (why?). It looks like you want a local maxim …
- 9,522