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Questions related to implementation of various algorithms under software environments and programming languages.
0
votes
Simulating room impulse response between rooms
Coupled rooms are hard siince you have two weakly coupled mode spectra to deal with. Also the details of the coupling (size, boundary conditions, geometry) become very important. If there is no direct …
8
votes
How to implement a digital oscillator?
What you have is a very good and efficient oscillator. The potential numerical drift problem can actually be solved. Your state variable v has two parts, one is eseentially the real part and the other …
4
votes
Is my accelerometer precise enough?
Typically you can improve performance by analyzing the data that you want and analyzing the data that you don't want. I would assume that a plane can't turn infinitely fast so the actual "want" data i …
1
vote
Accepted
How to specify the cut-off frequence in cascaded biquad filters?
Do we just cleverly set the $a_{1,2}$ and $b_{0,1,2}$ coefficents?
Yes.
The coefficients determine entirely what he filter does: shape (lowpass, highpass, bandpass, peaking EQ, shelve, etc.), steepn …
2
votes
Transposed direct form 1 vs Transposed direct form 2
I was wondering, does this property also holds for the transposed direct form 1?
It does not. In fact in terms of numerical performance, transposed direct form 1 is outright terrible.
It helps to lo …
1
vote
What is the most computationally efficient way to generate 100 sine waves layered on top of ...
There are two things that you can do to speed things up:
Do frame based processing, i.e. compute 1000 or so samples at a time before writing them to the wavefile
Minimize calls to transcendental fun …
2
votes
Recovering phase response from frequency magnitude of a minimum-phase system: Practical cons...
How do I verify that this phase response is indeed the correct answer?
Visual inspection works pretty well here. Things that indicate problems are
pre-ringing, i.e. unusual activity at the end of t …
1
vote
How to use Octave ellip() coefficients for 3-band C++ crossover
Not sure what your application requirements are but there seem to be some issues with your implementation.
Your pass band ripple of 5 dB is way too big. Something like 0.1dB would be much more typica …
1
vote
Analyzing Quantization Effects on DSP Algorithms
You may be overthinking this.
Step 1: optimize the SNR at the ADC
-1.8V to 1.8V (input voltage range of the adc).
According to the data sheet the input voltage range 2.7Vpp, that means you need to r …