Tagged Questions

The impulse response of a dynamic system is its output when presented with a brief input signal, called an impulse.

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Why is the frequency response different based on the amplitude of the impulse I feed into the filter?

I am working on a 2-pole IIR high-pass filter. The filter is fixed point and it is causing me some issues. I believe I'm just misunderstanding something. I am implementing everything in Octave for ...
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Impulse response from basis functions with initial zero response

I have a system where I am applying a unit surface step function and measuring a subsurface output. This means I have zeros in the response until the disturbance reaches the sensor. I need to find ...
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Measuring noise floor in an impulse response

Say I have an impulse response... (an envelope of the actual IR obtained using the Hilbert transform) ... question: how do I calculate the surrounding noise level? Visually this looks to be ~ -54 ...
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Room Impulse Response for CHiME speech database

Where can I find the .wav file or a MATLAB plot for the Bin-aural Room Impulse Response(BRIR) that is used to create the CHiME speech database? http://spandh.dcs.shef.ac.uk/chime_challenge/data.html
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First post, and this isn't my field of study, but I'm giving this a go anyway: My latest endeavor is to use a bit of DSP magic to match up various pairs of headphones, at least in terms of their ...
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LTI system impulse response output [duplicate]

If I have a LTI system which has impulse response $h(n) = \left(\frac{1}{2}\right)^nu(n)$ and the entry is $x[n]=u[n]-u[n-1]$ where $u[n]$ is the unit step function. In order to find the output I ...
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Sine sweep vs impulse response

What kind of pros and cons does these method for identifying a system have? I seem to have a hard time finding literature discussion in this issue. I am operating on a linear system, or the linear ...
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Inputs for system identification

What effects does have a different input such as impulse, step, sine sweep etc. on performing a system identification? I mean what is up/down side, and which one is best, and why chose one rather ...
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What does it mean to deconvolve the impulse response

I am learning DPS and I came across the problem of deconvolution and removing the impulse response from a signal? This still does little sense to me. My understanding of the impulse response is to ...