Attacks that make no attack: the onsets of a legato line — a voice, a
bowed string, a wind instrument, a sustained patch — where one note
turns into the next with no new burst of energy for an onset detector
to find. The dominant pitch is read every few tens of milliseconds; when
it moves by a semitone or more and stays there, that moment is an onset,
timed at the middle of the first read that heard the new pitch, which
is close to where the change was.
Attacks that make no attack: the onsets of a legato line — a voice, a bowed string, a wind instrument, a sustained patch — where one note turns into the next with no new burst of energy for an onset detector to find. The dominant pitch is read every few tens of milliseconds; when it moves by a semitone or more and stays there, that moment is an onset, timed at the middle of the first read that heard the new pitch, which is close to where the change was.