Android and FFT - Improve Real-Time Frequency Analysis App
$30-250 USD
Terminado
Publicado hace más de 5 años
$30-250 USD
Pagado a la entrega
Hi.
I am looking for a clever person with experience with Java and Android and, preferably, experience with FFT or Fast Fourier Transforms (Frequency Detection of Recorded Audio), or enough knowledge , as for to be able to improve the Real-Time Frequency Analysis an Android App does.
This App has a public license, and I want to improve it.
You can download the .zip of the Android Studio Project of the App and run it on your cellphone so you get acquainted to it.
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The problem to solve, is, that the Real-Time Frequency Analysis does not offer correct results mainly for I would say 70% of the times.
This means that, if, for example, I play a B note on the Guitar, 70% of the time it detects different notes that I am not playing, even with a volume that should make the analysis to give a good decent result.
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The App has its own XX Times-a-Second Refreshing Text View that tells you both the Detected Main Frequency, and also, the Note (C, B, D, or whatever it would be) that belongs to that Frequency, alongside with a graph that shows visually all the audio analysis.
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You can see a picture of the App working in the Attached Files, detecting a G3 Note.
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So, I need the Real-Time Audio Analysis to give a correct result for at least 70% of the Time it is detecting Any Frequency (on a single instrument, one note at a time, from 20 to 4,000 Hz, and with a low ambient sound).
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So, who thinks can improve the Real-Time Audio Analysis?.
I expect your applications.
Use an adaptive filter to enhance the signal collected by the microphone before doing frequency domain analysis.
Relevant Skills and Experience
Adaptive filter, digital signal processing, Java, kotlin.
$80 USD en 11 días
5,0 (5 comentarios)
3,1
3,1
3 freelancers están ofertando un promedio de $193 USD por este trabajo
hi,sir
I`m interesting in your project.
I`m a expert in html, php, sql, node.js, wordpress, javascript ,andorid and java and have deep experience in these fields.
I can complete your project with short time and normal cost, high performance.
i have just read your porojection.
when i saw your one ,i thought about my university life.
so, i have solved your projection.
By using FFT(fast frequency TRAN),your mobile will be more improved than 70%.
i hope your success.
I hope to see you in chat for our project. Thanks.