NScumm.Core.Audio.PCSpeakerDriver.UpdateNote C# (CSharp) Method

        void UpdateNote()
        {
            int priority = 0;
            _activeChannel = null;
            for (var i = 0; i < 6; ++i)
            {
                if (_channels[i]._allocated && _channels[i]._out.active != 0 && _channels[i]._priority >= priority)
                {
                    priority = _channels[i]._priority;
                    _activeChannel = _channels[i];
                }
            }

            if (_activeChannel == null || _activeChannel._tl == 0)
            {
                _pcSpk.Stop();
                _lastActiveChannel = null;
                _lastActiveOut = 0;
            }
            else
            {
                Output((ushort)(_activeChannel._pitchBend + (_activeChannel._out.note << 7)));
            }
        }