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Questions tagged [pitch-detection]

44 questions
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Extract text from a Praat pitch file to another text file

I was wondering whether some can help me with a tricky thing which is extracting times and frequency of a Praat Pitch contour to a txt file. I start from File type = "ooTextFile" Object class = "Pitch 1" xmin = 0 xmax = 1.592 nx = 159 dx =…
Marco
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Perform Fourier Transform on sections of a wav file python

Is it possible to split a wav file into .2 second sections, then perform a Fourier Transform on each section to get the frequency distribution of each section? Specifically if I only cared about 2 or 3 specific frequencies, would there be an easier…
Chris
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Why is this FFT code not working to extract frequencies from a wav audio?

I'm quite new to audio processing and i'm trying to extract frequencies from a wav file. As research papers stated i put the wav audio into a byte array and segmented and trying to apply FFT to get the frequencies from the audio. However the problem…
dav191
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How to get started with jtransforms library in Java

I want to extract frequencies from a wav audio and i'm thinking of using an autocorrelation method along with the usage of FFT. Came accross a good pitch detection library for java called "JTransforms" can anyone suggest how to get started with it?…
bucks
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Is it feasable to use AVAudioEngine to detect pitch in real time?

I'm trying to write a music app where detection of pitch is the core of it all. I've seen solutions to this problem as well as apps on the AppStore. However most of them are pretty dated and I'd like to do this is Swift. I've been looking at…
MdaG
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MATLAB semilog scaling

I'm new to MATLAB, and am working on a program that deals with frequency of the human voice based on microphone input. The biggest problem I am running into is that musical notes (what I am dealing with in this project) increase in frequency…
Aaron B.
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FFT results vary depending on which computer I use

I am working on a pitch detection project using Unity3D. I am very new to coding, unity & pretty much everything else I'm currently working on! :-) I came across this web page that helped get me going and am using the FFT code in my…
Philsko
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Frequency Detection Libraries with Android Jetpack Compose

I have a problem in Frequency Detection. I was using TarsosDSP for Android, but when I updated to use Android 14, the Jetpack Compose libraries, and the ViewModel, it isn't running on physical devices. I have not been able to see the log. View…
Pranav Subramanian
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How to Find 3 Local Maxima in Fourier Transform Pitch Detection Function?

I have a function that detects the three most dominant frequencies in an incoming microphone stream. I'm running into a problem where when I play an "E4" note (392 Hz) on my piano, it says that the fundamental frequency is B5 (996 Hz). There are…
celewis
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Javascript - make a feature that lowers or raises the pitch of the song that's playing

Has anyone ever made an app for music? I need to make a feature that lowers or raises the pitch of the song that's playing... I need to be able to play my audio sample .wav, .mp3, .mp4 Which library to use to do this in javascript? I still haven't…
Vithor Carlos
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Trim syllable audio recording to only the vowel part

For a Chinese learning app, we let users record a syllable and we use speech recognition to assess if the pronunciation was correct or not. Every Chinese syllable can be pronounced with different tones (pitch differentials) that have different…
Paul
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Real time pitch shifting from scratch using python

I need help with a project which consists of 2 parts: real time pitch shifter in python (from scratch). switch the pitches of 2 voices from 2 different speakers. I have 2 questions: I couldn't find the proper math behind pitch shifting to…
Alireza Moradi
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ios how to combine AVAudioEngine speech recognition with AudioKit microphone pitch detection?

I would like to use AVAudioFoundation for microphone input for speech detection as shown in this ios example and simultaneously detect the pitch of the user’s voice through the same microphone input, using AudioKit. The latter API is probably a…
synchronizer
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Implementation of cross correlation function for pitch frequency detection

For my sound processing project (specifically pitch detection) I need to implement a cross correlation function and I'm having trouble with the results, I have 400 frames and all frames have 512 samples, the frames have 50 percent overlap this is…
Sadegh
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React Native with Expo to Monitor user voice pitch from mic

hello i want to make a simple platformer game via react-native expo, kinda look like flappy bird but using user voice as input. i have tried using @react-native-community/voice but i got this error TypeError: Cannot read property 'startSpeech' of…
QrQr
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