When playing for the second time to the end, it cannot be stopped and emits a harsh noise. about alphatab HOT 3 CLOSED

The problem is caused only when alphaTab uses the "ScriptProcessorNode" instead of the "AudioWorklets". AudioWorklets are not available if:

1. AlphaTab is bundled with WebPack (webpack has only very limited audio worklet support, not compatible with alphaTab)
2. AlphaTab is used in a non-secure context
3. The browser really doesn't support AudioWorklets

On alphaTab.net rule 1. applies.

And the root cause seem to be an inconsistency in the time calculation. For this file (only on the second round) the "tick position" indicates that the player has not yet finished, but the "time position" marks the file as finished.

There must be somewhere an inconsistency in the reporting of played samples. Maybe some samples from the previous playback are still in the buffer and played additionally leading to a wrong calculation on the positions.

from alphatab.

Update: I could now reproduce it also on the AudioWorklets.

from alphatab.

Update: I could now reproduce it also on the AudioWorklets.

I found a temporary solution, which is to add a stop() method when he plays to the end and there is no set to replay, forcing it to return to its initial state.

\playground\control.js

at.playerPositionChanged.on(function (args) {
... ....

    //Add new code here.
    if (!at.isLooping && args.currentTime === 0 && args.endTime > 0) {

        at.stop();
    }
});

from alphatab.