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Questions tagged [beat-detection]

24 questions
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How can I output my generated heart beat signal at high BPM accurately using matlab?

Solved! % Function to Generate ECG of heart beat signal for specified duration %--------------------------------------- function [Heartbeat,t] = ECG_Gen (HR,pulse_width,Amp,duration) Fs = 48000; delay = (60/HR); t = 0 : 1/Fs : duration; …
Federico
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how to generate and sync a xml/json file that contains each beat informations (bpm) for audio in js

I need to produce js events synced with music bpm for a "guitar hero" like game. First Question : How to generate a track file from beat detection (each bpm stored like a music sheet)? This file will be generated previously not necessary on the…
mica
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Empty numpy array for peak detection -> ValueError: negative dimensions are not allowed

I have a function beat detect. First I detect the r-peaks in the ecg signal with find peaks and store the peaks in an array. Then the function finds all peaks of the ppg signals that are in the range of the ecg peak and stores them also in an…
Kcodx
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Struggling with Actionscript computeSpectrum and beat detection

I am trying to understand the values given back to me from the computeSpectrum method. I want to work with the lower frequencies pick out the bass drum of a track. The numbers I am getting back from the byteArray make no sense. For example, it says…
Joxer
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Trying to access the first instance of an array in Actionscript 3

I am trying to do deat detection in actionscript 3. My idea is to create an array of dots (MovieClips) on the x axis which represents the frequency spectrum, SoundMixer.computeSpectrum(bytes, true, 0); is set to true. How do I access the first dot…
Joxer
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1st Steps in Beat Tracking (ios)

I'm using the method Eric D. Scheirer describes in the article "Tempo and beat analysis of acoustic musical signals" to determine the tempo of a song (beat tracking), but I have no idea what the first step is. I've looked into libraries like aubio…
user3739575
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Delay boolean from switching back to false

So, I am working on a game that requires beat detection. At this point, I have working beat detect code but it is in its own standalone java applet while I work on getting things ironed out so I don't cause any issues inside the game code. My…
Badge
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How to play music and use the beat detector in vvvv

does anyone knows how to listen the audio of a song while the beat detector is working with vvvv? Right now I can connect the output pin of the file stream node to the beat detector node and it works, also I can connect the output pin to the audio…
Floyd Barber
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Looking for audio library for editing audio files

So I've been googling and browsing stack overflow and have been unable to find anything that meets my specifications for an audio editing library. I do not need to work on live streams, just pre-existing files. The key things I'm looking for: BPM…
Tevis
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