To create an app that monitors audio for tone pulses of approximately 2 to 8ms in duration and store the start time in a queue. The app would have a separate thread to process this queue looking for 4 pulses within a 300ms period, measuring the three intervals between and using them to look up a corresponding ID number.
The user interface will be simple with a few setup parameters and a simple display of the code number each time a valid signal is detected.
Technical skills are required. The Freelancer must have some experience with signal analysis and understand the concept of A/D sampling and calculating average power of that signal in small blocks of time. If you understand the concepts on this page, you should have the background needed.
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If you have the technical background and experience with Android, this project should be fairly easy.
Please mention your signal processing experience in your proposal.
Hello,
I read your job posting carefully and checked all attachment files.
I can delivery the best result ASAP because I am a full time freelancer.
Best regards, Jin
I have rich experience in DSP
Please check below link. it is simple way.
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$1,500 CAD in 15 days
5.0 (15 reviews)
5.9
5.9
9 freelancers are bidding on average $1,388 CAD for this job
I had done MS in Digital Signal processing. Also I had several years of experience in the field of Digital Signal Processing algorithm. I had worked on a project related to pulse detection and TOA(time of arrival) logging etc. I can do this task for you.
Hello, I am interested in your project. I have realized project on the Android ultrasound transmission of digital information. I know how to digitize audio, digital signal processing, spectrum, filtering.
I deal with dsp systems more than 30 years. My skills include linear and non-linear processing - filtering, spectrum analysis, parametric and non parametric statistical methods