CODEWITHSUNDEEP
objective-cvisual-c++
YosiFZ
YosiFZ

Reputation: 7900

Detect BPM of Mp3

I want to know if there is a way in c++ or objective-c to get the BPM of a Mp3 file.

i found until now a source code for stuff that do it on wav files and not on mp3 file,

Upvotes: 0

Views: 2285

Answers (2)

nielsj
nielsj

Reputation: 1507

BPM (or beat) detection is a complicated algorithm that involves analyzing the sound stream in different ways. For this to happen, at least internally the MP3 must be decoded. Typically these are things you'd actually write in a language such as but not limited to C++ or Objective-C.

There are many libraries / pieces of code available that solve both problems, or in the case of beat detection: take a shot at it.

Upvotes: 1

Stu Mackellar
Stu Mackellar

Reputation: 11638

There's certainly no way to do BPM detection in the core C++ or Objective-C languages. You need to write the functionality yourself or take advantage of one of the many libraries that provide it.

If you can't find a suitable library that supports MP3 directly then you're going to have to decode to PCM first.

Upvotes: 1

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