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Ajay Kumar


San Jose State University

24 total contributions since 2011

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...

3 months 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...

9 months ago | 0 Answers | 0

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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,...

12 months ago | 1 Answers | 0

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answer

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...

4 years ago | 1 Answers | 0

1

answer

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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...

4 years ago | 1 Answers | 0

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answer

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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...

5 years ago | 1 Answers | 0

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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...

5 years ago | 1 Answers | 0

1

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

5 years ago | 0 Answers | 0

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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...

5 years ago | 1

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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...

5 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...

5 years ago | 1 Answers | 0

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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 ...

5 years ago | 0

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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...

5 years ago | 2 Answers | 0

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Drawing something simple with MATLAB
Try the above. It should work. This is the simplest if you are just trying to display characters

5 years ago | 0

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Drawing something simple with MATLAB
disp(' ') disp('X...X') disp('.X.X.') disp('..X..') disp('.X.X.') disp('X...X') disp(' ')

5 years ago | 0

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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...

5 years ago | 0

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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 ...

5 years ago | 0

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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 ...

5 years ago | 0

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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...

5 years ago | 2 Answers | 0

2

answers

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...

5 years ago | 2 Answers | 0

2

answers

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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...

5 years ago | 2 Answers | 0

2

answers

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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...

5 years ago | 1 Answers | 0

1

answer

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?

5 years ago | 2 Answers | 0

2

answers

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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...

5 years ago | 0 Answers | 0

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