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gtreshchev / AudioAnalysisTools

Audio Analysis Tools plugin for Unreal Engine. Provides a variety of functions for analyzing audio data. Works in conjunction with the Runtime Audio Importer plugin.
MIT License
103 stars 17 forks source link

Detect Build up #12

Closed liyuhack closed 1 year ago

liyuhack commented 1 year ago

Hay bro..... this isn't actually an issue but, is there any way to detect building up of high beat in music using your plugin. I tried to figure out how for 3 days but no luck. Also ur plugin can return whether or not the audio is beating for the specified time(beat detection). how to get that beat frequency in addition to the bool return at that time.

Thanks very much for this free plugin 🙏

gtreshchev commented 1 year ago

Hi. Thank you for your pleasant words :)

You can specify the range for beat detection manually (see IsBeatRange whose range is taken from the FFT sub-bands size), and if you want more accuracy you can specify your own FFT sub-bands size (see UpdateFFTSubbandsSize in the beat detection object).

liyuhack commented 1 year ago

Hi. Thank you for your pleasant words :)

You can specify the range for beat detection manually (see IsBeatRange whose range is taken from the FFT sub-bands size), and if you want more accuracy you can specify your own FFT sub-bands size (see UpdateFFTSubbandsSize in the beat detection object).

ok thanks bro..... i will try it to implment in this way to get frequency of specific band...... but how to detect it is building the beat(the part before the beating start). I mean detecting sound flow in a clip drops in/out. sorry for my bad english.

gtreshchev commented 1 year ago

The algorithm doesn't detect the start/end beat of a particular frame, but whether they occur at a particular time. Since the beats happen very fast and the algorithm accuracy is not so great (which is compensated by the high processing speed), it is not so easy to distinguish between the beginning and the end of a beat.

So that the algorithm is okay in terms of actually determining when a beat happened, but without taking into account start or end states of a particular beat.

liyuhack commented 1 year ago

The algorithm doesn't detect the start/end beat of a particular frame, but whether they occur at a particular time. Since the beats happen very fast and the algorithm accuracy is not so great (which is compensated by the high processing speed), it is not so easy to distinguish between the beginning and the end of a beat.

So that the algorithm is okay in terms of actually determining when a beat happened, but without taking into account start or end states of a particular beat.

ok thanks very much for your help. 🙏 🙏🙏🙏🙏