Tone.js and music-tempo: bpm detection mismatch

[jumeca]

Hi,
I am creating a web app using Tone.js and music-tempo to get the bpm of the song. Tone is creating an audioContext that gets the sample rate from my laptop (48000Hz) and music-tempo is calculating a tempo that is always 10 bpm less than what it should be (e.g. a song at 120bpm, I'm getting a result of 110bpm). I suspect that it could be because in the examples provided the audioContext is set to 44100 instead of 48000Hz. Any help would be much appreciated.

[killercrush]

Hello, you should set sampleRate of AudioContext to match sampleRate of your audio file

[jumeca]

Thanks! I managed to fix it by passing the hopsize based on the sample rate of the audio context

[SoplicaIndustries]

Thanks! I managed to fix it by passing the hopsize based on the sample rate of the audio context

Hi, how exectly did you calculate the hopsize? Could you provide an equation?