Professional Interests: Digital Signal Processing

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

1 year ago

Question

Accessing an mxarray when using codeGen to convert Matlab DLL to mex

Hello! I have a *.DLL that performs some data modification on a vector: calllib( 'DLL64', 'CPP', pX, pY) Where pX a...

2 years ago | 0 answers | 0

Question

Access Violation when using system() command. No issues when running from command line directly.

Hello, I am running a r2015b version of Matlab. I have a simulation that uses the MCR (version 8.5). In order to enable this,...

2 years ago | 1 answer | 0

Question

Cell to String

Hi, I am trying to concatenate a two strings in the below code: baseDIR = 'C\Documents and Settings\User\Desktop\'; t...

6 years ago | 1 answer | 0

Question

Matrix with strings of different sizes

Hello, I would like to know if there is anyway of making this work: tstFeats = ['NB_ACQ'; 'AEC'] I Basically need to ha...

6 years ago | 1 answer | 0

Question

Matlab is unable to detect the sampling frequency of Audio Interface

I have an ASIO audio interface. It is running at 48000Hz. When I check rate using playrec('getDevices'), I see the default sampl...

6 years ago | 1 answer | 0

Question

What is the best way of Audio analysis?

I was intending to validate a system that acts as a switch. It has 10 inputs and 10 outputs. I am playing a 3 sec speech file to...

6 years ago | 1 answer | 0

Question

Use 'MME' and 'ASIO'

Can I use both MME and ASIO for recording in the same call for example playrec or pa_wavplayrecord.

6 years ago | 0 answers | 0

Answered

Best filter

It depends on what frequencies you want to get rid off. View the FFT of the signal. Find out where you have the noise. Eas...

Best filter

It depends on what frequencies you want to get rid off. View the FFT of the signal. Find out where you have the noise. Eas...

6 years ago | 1

| accepted

Answered

speech and cough deduction

This is more complicated then you think it is. However, the easiest solution is to find the FFT of the signal and see the power...

speech and cough deduction

This is more complicated then you think it is. However, the easiest solution is to find the FFT of the signal and see the power...

6 years ago | 0

Question

How to use multiple diaries in Matlab

How do I have two diaries in matlab for example: >> diary a.txt >> disp('1') 1 >> disp('2') 2 >> diary b.txt >> dis...

6 years ago | 1 answer | 0

Answered

Solve Sequence to find next six numbers

The next six numbers are 2 3 0 3 2 3 Now the starting point element/vector is A = [0 1 2 1 0 1 0 3 0 1 ...

Solve Sequence to find next six numbers

The next six numbers are 2 3 0 3 2 3 Now the starting point element/vector is A = [0 1 2 1 0 1 0 3 0 1 ...

6 years ago | 0

| accepted

Question

Solve Sequence to find next six numbers

I have a sequence to solve and get the next six numbers. I have all the stats for the data like 1st difference, second differenc...

6 years ago | 2 answers | 0

Answered

Drawing something simple with MATLAB

Try the above. It should work. This is the simplest if you are just trying to display characters

Drawing something simple with MATLAB

Try the above. It should work. This is the simplest if you are just trying to display characters

6 years ago | 0

Answered

Drawing something simple with MATLAB

disp(' ') disp('X...X') disp('.X.X.') disp('..X..') disp('.X.X.') disp('X...X') disp(' ')

Drawing something simple with MATLAB

disp(' ') disp('X...X') disp('.X.X.') disp('..X..') disp('.X.X.') disp('X...X') disp(' ')

6 years ago | 0

Answered

Problem with function

Matlab would not return the value of X if you do the following: 50=R*cos^2((pi*X)/I) You can probably try: %Assign valu...

Problem with function

Matlab would not return the value of X if you do the following: 50=R*cos^2((pi*X)/I) You can probably try: %Assign valu...

6 years ago | 0

Answered

plotting very small values

You can probably try scaling the values by multiplying it with a constant. No you would end up having the same kind of behavior ...

plotting very small values

You can probably try scaling the values by multiplying it with a constant. No you would end up having the same kind of behavior ...

6 years ago | 0

Answered

motion detection using matlab in image processing

The most basic motion detection you can do is use a bright colored object to detect. For example if you use green ball, you can ...

motion detection using matlab in image processing

The most basic motion detection you can do is use a bright colored object to detect. For example if you use green ball, you can ...

6 years ago | 0

Question

How to edit default Audio playback and Recording devices in Matlab

If I perform a getdevinfo on Matlab, I see a bunch of audio devices. I am using a 10 input, 14 output audio interface. Now the w...

6 years ago | 2 answers | 0

Question

MOTU UltraLite MK3 ASIO problem in MATLAB

I have been using a 10x10 channel Roland Octa-capture. Due to frequency non-linearity I had to switch to MOTU UltraLite MK3. I h...

6 years ago | 3 answers | 0

Question

Send a LUA script via USB to a Test Script Processor enabled device using Matlab

I am working with a Keithley 3706-S switcher which can be configures using a LUA code sent via Test Script Builder (TSB). LUA c...

6 years ago | 2 answers | 0

Question

Read the commands being sent out on Ethernet port

I have a Keithley 3706 - S switcher, which is supplied with its own software. This software communicates with the device via TCP...

6 years ago | 1 answer | 0

Question

Control a third party GUI using Matlab

Is there a way to communicate with a third party GUI to select features listed on the GUI?

6 years ago | 2 answers | 0

Question

Use Matlab to control a third party driver (Keithley 3706-S)

I have a Keithley 3706-S switcher. I wanted to automate some tests which involve switching the microphones inputs. It is very im...

6 years ago | 0 answers | 0