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Dinesh Iyer

MathWorks

Last seen: 3 months ago Active since 2013

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Answered
GPU Coder Image output?
Joseph, A few things that might help. The cv::Mat's can store data in different color formats. The most popular one that I have...

1 year ago | 1

Answered
read and divide HDF5 data into chunks
The H5P.set_chunk is used to specify the chunk dimensions of a dataset i.e. what should the size of each chunk when it is is sto...

3 years ago | 1

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Answered
Can I input/output a wavs in electronics toolbox?
The Audio System Toolbox has functions like audioDeviceReader, audioDeviceWriter which allows you to playback and record sound.....

3 years ago | 0

Answered
Cretae a video from Images using WriterObj
Please see doc page for VideoWriter.

3 years ago | 0

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Answered
dsp.AudioFileReader. What happens when the audio is shorter than 'SamplesPerFrame'?
It will zero pad to the frame size.

3 years ago | 1

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Answered
Why does audiowrite modify my data frames slightly?
For MP4 and OGG, you cannot expect sample accuracy because they are lossy compression formats. For WAV, the difference is bec...

3 years ago | 1

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Answered
I need Help to execute algoritjms given in the attached file.How can I apply H265,H264,H263 and compare their Results?
You cant apply these kinds of compression to a video file in MATLAB. VideoWriter supports writing to H.264 encoded MP4 files. Yo...

3 years ago | 0

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Answered
I want to create a colormap movie that contains more than 256 frames. How would I go about doing this? Would appreciate any help on this.
Use VideoWriter using the Indexed AVI profile. You can write as many frames as you want. If you mean that your images are in...

3 years ago | 0

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Answered
How to save a 16 bit video file as tiff/avi/...
Roman, There are a couple things you can try. Either you can post process the MJ2 video file i.e. read it in using VideoRea...

3 years ago | 0

Answered
How do I read all the wav files in a directory from a single loop ?
You can use the fileDatastore with the audioread as the Custom function. https://www.mathworks.com/help/matlab/ref/matlab.io....

3 years ago | 0

Answered
Need Help in importing Audio files
You can use the FileDataStore object and supply audioread as the custom read function. This will save you the hassle of looping:...

3 years ago | 0

Answered
How can I record more than 2 channels in Matlab
You can use the audioDeviceReader system object that is part of the Audio System Toolbox to do this.

3 years ago | 0

Answered
Hello, how to read a BMP image in MATLAB?
The patch with the fix for this issue can be found at: http://www.mathworks.com/support/bugreports/1432749

5 years ago | 1

Answered
Hello, how to read a BMP image in MATLAB?
This appears to be a bug with IMREAD. The BMP file appears to use a BI_BITFIELD compression to store the image data which appear...

5 years ago | 1

Answered
How can I receive stream video content over a network with UDP protocol?
The system object does allow you to read video content over MMS stream. However, the issue might be that it is unable to decode ...

5 years ago | 0

Answered
Using vision.VideoWriter can I specify the audio bitdepth? It appears to allow only 16-bit audio.
This is a limitation of the VideoFileWriter system object in that it does not support audio data into AVI files larger than 16-b...

5 years ago | 2

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Answered
multimedia.internal.audio.file.PluginManager" fails this test
The error message is definitely misleading. However, you cannot create MP3 files using audiowrite. You can create MPEG-4/AAC, WA...

5 years ago | 1

Answered
how to store a bits stream as video format?
Try fwrite(). Just write the bytes stream to a file. fwrite does not care what the bytes represent.

5 years ago | 0

Answered
HOW can i find number of frames using vision.VideoFileReader?
To use the system object to determine this value, you will have to read through the entire file like this: vfr = vision.Vid...

5 years ago | 1

Answered
can't load video using VideoReader in matlab R2015 on Ubuntu 15.04. Could not read file due to an unexpected error. Reason: Unable to initialize the video obtain properties
VideoReader support GStreamer 0.10. So if you have installed Gstreamer 1.0, it will not work. Once you install Gstreamer, yo...

5 years ago | 2

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Answered
How can i solve the error in VideoWriter in R2015a?
The profile name is the second argument that you provide to VideoWriter. It basically tells VideoWriter what kind of file you ar...

6 years ago | 0

Answered
Read DV encoded AVI file in Matlab 2015b 64 on Linux
The libstdc++ workaround does not apply here. The issue you are facing is that you do not have the suitable codec to read the fi...

6 years ago | 0

Answered
How do I play a video in MATLAB?
MATLAB has no mechanism to play both and video from a video. There have been suggestions about using: * MMPLAY which is a use...

6 years ago | 1

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Answered
how to read m2v and .264 video files
Ganesh, It would be nice to know what specific error message you are getting when you are attempting to read this file. I...

6 years ago | 0

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Answered
Number Of Frames in Video File with Matlab 2015b
The NumberOfFrames property is on the path to deprecation but querying this property still works. This deprecation indicates tha...

6 years ago | 5

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Answered
mmread crashing matlab.
mmread is not a MathWorks supplied function. It is a user submission on the File Exchange. MMREADER is a MATLAB function that ha...

6 years ago | 0

Answered
Cannot using movie2avi in MATLAB
Can you check if the location you are attempting to write the file to has write permissions? movie2avi is being deprecated. I...

6 years ago | 0

Answered
Agony with video formats on Windows Matlab installation
The error message you are receiving is a DirectShow error message which means that there is no codec available to read the file....

6 years ago | 0

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Answered
record speech and process during recording
Hi Vic, For this workflow, you need to use the dsp.AudioPlayer/dsp.AudioRecorder system objects and not the audioplayer/audio...

6 years ago | 0

Answered
how can i correlate two input signals?
Try the xcorr function in the Signal Processing Toolbox.

6 years ago | 0

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