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Questions tagged [audio-analysis]

To be used for questions related to the process of analyzing audio streams or files.

The process of analyzing audio streams or files.

93 questions
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Rapid spectral analysis of audio file using Python 2.6?

What I want to do is to have a subroutine that analyses every 200 milliseconds of a sound file which it is given and spits out the frequency intensity value (from 0 to 1 as a float) of a specific frequency range into an array which I later save.…
Ephemeralis
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Flutter: Is there any pacakage for audio analyzation?

Nowadays I need to develop an app, which can analyze an audio and extract its frequency and biterate. I have developed the function that choose a mp3 or m4a audio and put it into the app. So is there any dart package can help me analyze the audio…
yamato
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How to convert multiple stereo audio files to mono using ffmpeg?

I have been trying to convert a set of audio files from stereo to mono type.Can you help by providing the command for converting all the files in the folder?
Shahithya
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How does librosa estimate tempo?

I've inputted artifically made music with 120 bpm into: y, sr = librosa.load(sys.argv[1]) tempo, beats = librosa.beat.beat_track(y,sr) print("Tempo 1:", tempo) first_beat_time, last_beat_time =…
ingwarus
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Can I do real time audio analysis with Corona SDK

I'm looking at getting started with simple mobile app development. Corona SDK looks like a pretty nice fit for some of the ideas I'd like to toy with. I'm wondering if it is possible to do real time audio analysis with it? Could I for instance build…
oivvio
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Tuple Index Out Of Range - Training the Model for Audio

I am trying to analyse an Audio file and train the system based on that extracted features but I am getting an error while Fitting the model saying "Tuple Index out of Range". I have provided the shapes of all the arrays I am using in the comment…
Sumanth M
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Sound analysis without getUserMedia

I am trying to analyse the audio output from the browser, but I don't want the getUserMedia prompt to appear (which asks for microphone permission). The sound sources are SpeechSynthesis and an Mp3 file. Here's my code: return…
GiulioG
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Does react native support sample-level audio callback from microphone source?

I hope to make an app based on React Native in which I can capture audio frame by frame and perform DSP analysis. Is there any library based on React Native that support this type of function? Thanks.
im4lab
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Detect multiple voices without speech recognition

Is there a way to just detect in realtime if there are multiple people speaking? Do I need a voice recognition api for that? I don't want to separate the audio and I don't want to transcribe it either. My approach would be to frequently record using…
Tobias Philipp
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How to Make Sense of Fourier Transform Results in Audio Frequency Analysis

I am doing audio analysis in Python. My end goal is to get a list of frequencies and their respective volumes, like { frequency : volume (0.0 - 1.0) }. I have my audio data as a list of frames with values between -1.0 and +1.0. I used numpy's…
anroesti
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Analysing audio x seconds into the future using the Web Audio API

I am using an AnalyserNode to analyse audio provided by a MediaElementAudioSourceNode. Is there a way to sample and analyse the audio that will play x seconds into the future?
user76284
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Matlab: Finding dominant frequencies in a frame of audio data

I am pretty new to Matlab and I am trying to write a simple frequency based speech detection algorithm. The end goal is to run the script on a wav file, and have it output start/end times for each speech segment. If use the code: fr = 128; [ audio,…
Cbas
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File decompression memory footprint

I want to process audio offline on iOS, but have a query regarding memory usage. If I use AVAssetReader to decompress an MP3 to raw PCM data, the memory footprint would be huge. So how would I go about processing (offline FFT) an mp3 file if…
Skoder
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Improve gain in audio using android studio

I am just a new guy in android studio.This is my code for improving gain of a audio(mp3,wav)file.I don't know how to implement in android studio.I already stored a mp3 file in raw directory,I am using text box or seek bar for getting gain value from…
Someshwaran
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Looking for a audio Analysis library for information extraction

Hey guys I'm a beginner in Audio Analysis and trying to find a library which gives me insights like amplitude, classification of sound, what should detect background noise. I have tried out Paura/pyAudioAnalysis (pAura: Python AUdio Recording and…
Sachin CV
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