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Snore to non-snore detector.

Posted: Sun Dec 24, 2017 2:50 pm
by bonzadog
24.12.2017
What seems like a rather strange title has a very serious background.

I an looking for a contactless method of detecting Sleep apnea - this is when breathing stops for a while
during sleep.
So one need to detect a snoore ends then time the it takes for the start of next snore - This time would be then checked against a
value for an alarm.
The main problem is what mictophone to use , how to define a snoore start and stop....ie no false readings though cars/motorbikes etc.

I realise this a has it drawbacks but The person involved dislikes being connected to any devices...so a pure acoustic method must be used.

Any advice on this please?

Re: Snore to non-snore detector.

Posted: Sat Dec 30, 2017 8:49 pm
by mrs
Hi!

This is an ambitious project. I definitely think it is possible, but you will need time.

Hardware-wise an easy solution would be the Audioinjector soundcard, which sports a build-in microphone [1].
Software-wise, I would encourage you to check out the free speech recognition toolkit Kaldi [2].
It can be trained to recognize audible sounds.
You will first need to record data and annotate it.
Then, you can use the annotated samples to train and test the recognition system.

Best wishes,
Marc

[1] http://www.audioinjector.net/rpi-hat
[2] http://kaldi-asr.org/

Re: Snore to non-snore detector.

Posted: Sun Dec 31, 2017 3:05 pm
by bonzadog
Hello Marc,

Many thanks for those tips. I will most certainly try that.
This project is very important for me.

BD

Re: Snore to non-snore detector.

Posted: Mon Jan 29, 2018 4:23 pm
by shadetree01010100
This sensor breakout isn't too expensive, and may simplify the task of quantifying sound in general: https://www.sparkfun.com/products/12642