signal-processing

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DTMF detection from a wav file

I\'m an engineering student and I have to solve an academic problem regarding signal processing. Basically, given an DTMF signal in wav format, I have to identify the number sequence it has encoded.[详细]

2023-03-07 06:00 分类：问答
How to generate MFCC Algorithm's triangular windows and how to use them?

I am implementing MFCC algorithm in Java. There is a sample code here: http://www.ee.columbia.edu/~dpwe/muscontent/practical/mfcc.m at Matlab. However I have some problems with mel filter banking pr[详细]

2023-03-07 04:07 分类：问答
Adjust White balance

I\'m looking at some image processing algorithms for white balance manipulations. Seems like a previous Stackoverflow question answers the question of automatic white balance algorithms rather well.[详细]

2023-03-06 20:51 分类：问答
Delay outputting 0's

Can someone please tell me what is wrong here. delay has a buffer (del) with a pointer *p, but is outputting zero (0) every sample.[详细]

2023-03-06 18:03 分类：问答
Measuring audio delay

I am currently thinking about what I could do to measure the time it takes from the point where the computer gets audio input (t开发者_开发问答hrough a normal audio input on a soundcard) to the point[详细]

2023-03-06 15:39 分类：问答
Audio signal Processing-Retrieving information from audio [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-03-05 05:02 分类：问答
Play generated PCM data in real time

I\'mdeveloping a digital audio synthesizer on a dsPIC. To begin with Im writing and testing the algorithms in matlab.[详细]

2023-03-04 16:54 分类：问答
How to distinguish chords from single notes?

I am a bit stuck here as I cant seem to find some algorithms in trying to distinguish whether a sound produced is a chord or a single note. I am working on Guitar instrument.[详细]

2023-03-04 14:44 分类：问答
Extracting EEG Components from Signal within MATLAB

I have a simple EEG signal in MATLAB such as that shown in the figure below. And what I wanted was to extract the components of the EEG according to the following table.[详细]

2023-03-03 19:10 分类：问答
Chebyshev LPF introducing noise

I have created a simple Chebyshev low pass filter based on coefficients generated by this site: http://www-users.cs.york.ac.uk/~fisher/mkfilter/, which I am using to filter out frequencies above 4kHz[详细]

2023-03-03 16:57 分类：问答