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Difference between revisions of "ECE497 Project: PS EYE QT"

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m (moved PS EYE QT PROJECT to ECE497 Project: PS EYE QT: I'm adding a standard prefix.)
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== Executive Summary ==
 
== Executive Summary ==
  
For our Final Project we would like to capture audio from the Playstation Eye microphone array and be able to display it in Qt using plots from Qwt. We would also like to include an option to select different effects for the captured audio on our Qt GUI.
+
For our Final Project we wanted to be able to capture audio from the PlayStation Eye microphone array and then be able to display the audio waveforms all on the beagle.
 +
Initially we set out to display the waveforms in Qt using Qwt, which was later proved to be more difficult than initiall anticipated due to limitations on the Beagle and neither of us having prior C++ programming experience.
 +
The next thought was to try to use GnuPlot to try to plot the audio data. GnuPlot was really designed to produce static plots of information, not plots that were in realtime. We were able however to find different ways to "force" GnuPlot to plot the live data with the help of a clever script written by [http://users.softlab.ntua.gr/~ttsiod/index.html Thanassis Tsiodras], and then also edited by [http://www.lysium.de/blog/index.php?/archives/234-Plotting-data-with-gnuplot-in-real-time.html Andreas Bernauer] which can be found [http://users.softlab.ntua.gr/~ttsiod/gnuplotStreaming.html here].
 +
When we implemented this script with our audio data on the beagle it still wasn't as realtime as we would have liked it to be due to the capabilities of the beagle, so we then had the idea to send the data back to a host computer which would then have the processing capability to produce the results we were after.
  
Currently we are working on setting up the Qt framework for the PS Eye and the effects for the audio.
+
We currently have working plots of audio waveforms for channel1 and channel2 of the PS Eye microphone array. These plots are displayed on a host computer with the data being sent from the beagle via netcat.
  
We currently have nothing working but it is in progress.
+
This project turned out to be a lot more difficult then initially anticipated. Although it would be nice for this project to run solely on the beagle it is very interesting to discover all of the possibilities of utilizing netcat between the beagle and host.
  
End with a two sentence conclusion.
 
 
The sentence count is approximate and only to give an idea of the expected length.
 
  
 
== Installation Instructions ==
 
== Installation Instructions ==
  
Give step by step instructions on how to install your project on the SPEd2 image.   
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* This is the [https://github.com/ github] path to our project: https://github.com/harrisgw/ECE580-DisplayAudioWaveforms .   
 +
 
  
* Include your [https://github.com/ github] path as a link like this:  [https://github.com/MarkAYoder/gitLearn https://github.com/MarkAYoder/gitLearn]. 
 
 
* Include any additional packages installed via '''opkg'''.
 
* Include any additional packages installed via '''opkg'''.
 
* Include kernel mods.
 
* Include kernel mods.

Revision as of 20:32, 12 February 2012


Team members: Mona Yan, Greg Harrison

Executive Summary

For our Final Project we wanted to be able to capture audio from the PlayStation Eye microphone array and then be able to display the audio waveforms all on the beagle. Initially we set out to display the waveforms in Qt using Qwt, which was later proved to be more difficult than initiall anticipated due to limitations on the Beagle and neither of us having prior C++ programming experience. The next thought was to try to use GnuPlot to try to plot the audio data. GnuPlot was really designed to produce static plots of information, not plots that were in realtime. We were able however to find different ways to "force" GnuPlot to plot the live data with the help of a clever script written by Thanassis Tsiodras, and then also edited by Andreas Bernauer which can be found here. When we implemented this script with our audio data on the beagle it still wasn't as realtime as we would have liked it to be due to the capabilities of the beagle, so we then had the idea to send the data back to a host computer which would then have the processing capability to produce the results we were after.

We currently have working plots of audio waveforms for channel1 and channel2 of the PS Eye microphone array. These plots are displayed on a host computer with the data being sent from the beagle via netcat.

This project turned out to be a lot more difficult then initially anticipated. Although it would be nice for this project to run solely on the beagle it is very interesting to discover all of the possibilities of utilizing netcat between the beagle and host.


Installation Instructions


  • Include any additional packages installed via opkg.
  • Include kernel mods.
  • If there is extra hardware needed, include links to where it can be obtained.

User Instructions

Once everything is installed, how do you use the program? Give details here, so if you have a long user manual, link to it here.

Highlights

Here is where you brag about what your project can do.

Consider including a YouTube demo.

Theory of Operation

Give a high level overview of the structure of your software. Are you using GStreamer? Show a diagram of the pipeline. Are you running multiple tasks? Show what they do and how they interact.

Work Breakdown

List the major tasks in your project and who did what.

Also list here what doesn't work yet and when you think it will be finished and who is finishing it.

Conclusions

Give some concluding thoughts about the project. Suggest some future additions that could make it even more interesting.