Android and FFT - Improve Real-Time Frequency Analysis App


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.


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.


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.


You can see a picture of the App working in the Attached Files, detecting a G3 Note.


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).


So, who thinks can improve the Real-Time Audio Analysis?.

I expect your applications.

Aftësitë: Android, Shërbime Audio, Java, Mobile App Development, Arkitekturë Softuerësh

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Rreth Punëdhënësit:
( 23 përshtypje ) Villa Adelina, Argentina

ID Projekti: #17668424

Është zgjedhur fitues:


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 për 11 ditë
(4 Përshtypje)

6 profesionistë freelancer dërguan një ofertë mesatare prej $185 për këtë punë


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 nor Më shumë

$222 USD për 3 ditë
(147 Përshtypje)

Hi, bro. Nice to meet you. I have read your request carefully. Very Interesting!!! I have rich experiences with audio processing using Java with Android Studio I am confident in your project and I can finish yo Më shumë

$155 USD për 3 ditë
(62 Përshtypje)
$277 USD për 5 ditë
(5 Përshtypje)

Hello sir. I'm excited about your project, because I've really rich experience in Android & FFT Programming. I've developed many projects similar to yours and excellent skills. If you award me, I'll provide wonderfu Më shumë

$155 USD për 3 ditë
(9 Përshtypje)
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