Theodoros Giannakopoulos

Dear Nikolay. First of all thank you for your comments. Some notes on them:
(a) mp3 IO was not supported in older Matlab versions. Furthermore, audioread seems to have some OS compatibility issues, so I stuck with WAV file format only. Personally, I prefer to use some extrernal script for transcoding (e.g. commandline ffmpeg...)
(b) optioned listening seems right to me to: I will change this in the future
(c) GUI is also some fututre plan
(d) It's true that the precision / recall is not 100%: this is due to the very simple audio features adopted. One can rely to more sophisticated features for better results (e.g. mfccs, other spectral features etc).
I'd be glad to see your new results using and expanding this algorithm.
Again, thank you for your comments!
Theodoore

Hi Sam. Thank you for your question. This is quite simple actually. You only need to add a button and then use the imrotate function (http://www.mathworks.com/help/toolbox/images/ref/imrotate.html). I am uploading an updated version which provides you the ability to rotate an image (rotate angle is selected in the range 0.360 using a slider).

This program uses Euclidean Distance to compare the similarities. Instead can someone change the code to compute the similarities as one of the following please.

Canberra Distance or City Block Distance

http://stn.spotfire.com/spotfire_client_help/hc/hc_city_block_distance.htm

http://en.wikipedia.org/wiki/Canberra_distance

Excellent submission, works fine on the example, and additional files. Almost what I was looking for. Luckily I’ve checked the File Exchange before I’ve written a version of my own. In my case I’m interested in removing silence gaps form several hours recording from some sort of an audio surveillance device. This way I wish to save listeners time and storage space. A few comments, if I may:
• Why limiting the supported file formats to .wav? “audioread” supports MP3 and many other common audio formats.
• For my case I am not always interested to listen to the segments with voice/audio data, though I’d like to have the option.
• I am interested is storing relevant segments, ignoring silence gaps and irrelevant segments. This naturally demands some dialogs and GUI.
• I’ve noted sometimes speech is not properly detected, I’m still investigating this...
I plan to work on your code, to shape it into the application I want (which is a bit different from the current functionality). As mentioned above your code is an excellent starting point. If you want to, I can share the results later on, perhaps even submitting it.
Keep up the good work!
Thanks!