a bit of advice for anyone using this feature and enjoying a better experience:
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This feature is monophonic: as in 1 note at a time, monophonic instruments will give you better results, ie. flute, sax. Polyphonic instruments will work as well but you have to stop sustaining notes before you play the next.
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Each triggered note will allow you to pitch bend a little before suddenly jumping to the next midi note message. A smooth note glide is not possible.
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This feature detects notes in relation to their actual wavelength. This means it will have a hard time recognizing lower pitch notes and will have a higher latency (delay between you playing the note and aubio recognizing it) A solution if you want to play lower registers comfortably with minimum latency is to play 1 or 2 octaves above the intended notes and to transpose the midi data afterwards.
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Practice: audio to midi has been around for a while and it requires a different style of playing on each instrument for it to work seamlessly Sonuus g2m , migic , Jam origin, this one is polyphonic!
Best