MidiInput.Update C# (CSharp) Method

    void Update()
    {
        // Update the note state array.
        foreach (var cs in channelArray) {
            for (var i = 0; i < 128; i++) {
                var x = cs.noteArray [i];
                if (x > 1.0f) {
                    // Key down -> Hold.
                    cs.noteArray [i] = x - 1.0f;
                    cs.lastNote = i;
                    cs.noteOnCount+= 1;
                } else if (x < 0) {
                    // Key up -> Off.
                    cs.noteArray [i] = 0.0f;
                    cs.lastNote = i;
                    cs.noteOnCount-= 1;
                }
            }
        }

        // Calculate the filter coefficient.
        var filterCoeff = (knobSensibility > 0.0f) ? Mathf.Exp (-knobSensibility * Time.deltaTime) : 0.0f;

        // Update the filtered value.
        foreach (var cs in channelArray) {
            foreach (var k in cs.knobMap.Values) {
                k.UpdateFilter (filterCoeff);
            }
        }

        // Process the message queue.
        while (MidiBridge.instance.incomingMessageQueue.Count > 0) {
            // Pop from the queue.
            var message = MidiBridge.instance.incomingMessageQueue.Dequeue ();

            // Split the first byte.
            var statusCode = message.status >> 4;
            var channelNumber = message.status & 0xf;

            // Note on message?
            if (statusCode == 9) {
                var velocity = 1.0f / 127 * message.data2 + 1.0f;
                channelArray [channelNumber].noteArray [message.data1] = velocity;
                channelArray [(int)MidiChannel.All].noteArray [message.data1] = velocity;
            }

            // Note off message?
            if (statusCode == 8 || (statusCode == 9 && message.data2 == 0)) {
                channelArray [channelNumber].noteArray [message.data1] = -1.0f;
                channelArray [(int)MidiChannel.All].noteArray [message.data1] = -1.0f;
            }

            // CC message?
            if (statusCode == 0xb) {
                // Normalize the value.
                var value = 1.0f / 127 * message.data2;

                // Update the channel if it already exists, or add a new channel.
                if (channelArray [channelNumber].knobMap.ContainsKey (message.data1)) {
                    channelArray [channelNumber].knobMap [message.data1].Update (value);
                } else {
                    channelArray [channelNumber].knobMap [message.data1] = new KnobState (value);
                }

                // Do again for All-ch.
                if (channelArray [(int)MidiChannel.All].knobMap.ContainsKey (message.data1)) {
                    channelArray [(int)MidiChannel.All].knobMap [message.data1].Update (value);
                } else {
                    channelArray [(int)MidiChannel.All].knobMap [message.data1] = new KnobState (value);
                }
            }
        }
    }