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Automatic birdsong analysis

I've started my first project after my PhD, a small feasibility study into automatic birdsong analysis.

The picture visualises a few seconds of a skylark recording by Dr Elodie Briefer (in QMUL's School of Biological and Chemical Sciences), from her PhD research into the structure of skylark song.

What we're doing is looking at the potential for automatically analysing birdsong signals, which could mean picking them out of recordings, identifying species, identifying individual "syllables" in the song... who knows.

There are already a fair few published research papers about automatic birdsong analysis. I'm looking at the state of the art to determine the scope for future work, such as applying machine learning techniques we've developed in our group, or particular forms of signal analysis such as adaptive transforms.

In my PhD I was looking a lot at voice and music. Birdsong has interesting similarities to both music and spoken language - plus differences of course. So watch this space. And of course get in touch if you're interested.

Monday 5th July 2010 | science | Permalink
Comments:
Name: Anon...
Email: Mward art bio dort tamu dort edu
Date: Friday 29th October 2010 03:28
Looking for exactly what you have stated in the second sentence. I am looking at the learning and behavior of Northers Mockingbirds. Really need a program to be able to identify singing vs non singing and then have a way to find specific syllables over time.
Name: Borlani
Website: http://www.ianbo.weebly.com
Email: ianborland art live dort co dort uk
Date: Tuesday 6th September 2011 01:46
Hi,
Total Amateur here, but I found something fascinating messing about with bird songs from a free RSPB CD... I was slowing them down and speeding them up - and a blackbird slowed to 60% sounds like a chicken, while a Wren slowed down sounds like a blackbird, and a Dove speeded up sounds like a Blackbird.
Do you think it is possible that bird song is a function of size, in the sense that their brains work faster, being smaller?
Dumb input I know, but it fascinated me which lead me to search for Birdsong Analysis hence finding your site.
Name: Dan
Date: Tuesday 6th September 2011 08:31
Interesting! Theres definitely a connection between size and sound, but its definitely not about brains working faster, because that isnt a big difference between birds. The size of the birds body affects the size of the resonant cavities in the mouth/throat so it affects the resonant character of the sound - but in terms of the
speed of what is sung (i.e. how many notes per second), I dont believe theres a connection. Im not sure if the pitch range of the bird is affected by body size, but Id guess not - there are some big birds with surprisingly shrill song...

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