I'm trying to build an app that will accurately count time between taps, like a tap function on a metronome but finding the results to be inaccurate; current_time = QDateTime.currentMSecsSinceEpoch () tap_old = tap_new tap_new = current_time tap_delay = (tap_new - tap_old) bpm = 60 / tap_delay This was the plan but it didn't work out how I expected, giving me a range of values from around 110bpm to 130bpm while tapping along with another metronome set to 120bpm. I've since tried adding the seconds and the last 3 digits of the microseconds together to see if this increased accuracy, but to no avail. And yes I'm sure this can be done more efficiently, but it was just a test; current_sec = QDateTime.currentSecsSinceEpoch () current_msec = QDateTime.currentMSecsSinceEpoch () current_msec = str(current_msec) current_msec1 = current_msec[10] current_msec2 = current_msec[11] current_msec3 = current_msec[12] current_msec = (current_msec1 + current_msec2 + current_msec3) current_msec = int(current_msec) current_msec = current_msec / 1000 current_time = current_sec + (current_msec) I've tried just subtracting the times by using current_time = QTime.currentTime() and also trying to compare the two; tap_delay = QTime.mSecsTo(self, tap_old). I definitely don't know how to use these functions so they just gave me errors. Continue reading...
