AlphaSynth.Synthesis.Synthesizer.NoteOn C# (CSharp) Метод

        public void NoteOn(int channel, int note, int velocity)
        {
            // Get the correct instrument depending if it is a drum or not
            var sChan = _synthChannels[channel];
            Patch inst = SoundBank.GetPatchByNumber(sChan.BankSelect, sChan.Program);
            if (inst == null)
                return;
            // A NoteOn can trigger multiple voices via layers
            int layerCount;
            if (inst is MultiPatch)
            {
                layerCount = ((MultiPatch)inst).FindPatches(channel, note, velocity, _layerList);
            }
            else
            {
                layerCount = 1;
                _layerList[0] = inst;
            }

            // If a key with the same note value exists, stop it
            if (_voiceManager.Registry[channel][note] != null)
            {
                var node = _voiceManager.Registry[channel][note];
                while (node != null)
                {
                    node.Value.Stop();
                    node = node.Next;
                }
                _voiceManager.RemoveFromRegistry(channel, note);
            }
            // Check exclusive groups
            for (var x = 0; x < layerCount; x++)
            {
                bool notseen = true;
                for (int i = x - 1; i >= 0; i--)
                {
                    if (_layerList[x].ExclusiveGroupTarget == _layerList[i].ExclusiveGroupTarget)
                    {
                        notseen = false;
                        break;
                    }
                }
                if (_layerList[x].ExclusiveGroupTarget != 0 && notseen)
                {
                    var node = _voiceManager.ActiveVoices.First;
                    while (node != null)
                    {
                        if (_layerList[x].ExclusiveGroupTarget == node.Value.Patch.ExclusiveGroup)
                        {
                            node.Value.Stop();
                            _voiceManager.RemoveVoiceFromRegistry(node.Value);
                        }
                        node = node.Next;
                    }
                }
            }
            // Assign a voice to each layer
            for (int x = 0; x < layerCount; x++)
            {
                Voice voice = _voiceManager.GetFreeVoice();
                if (voice == null)// out of voices and skipping is enabled
                    break;
                voice.Configure(channel, note, velocity, _layerList[x], _synthChannels[channel]);
                _voiceManager.AddToRegistry(voice);
                _voiceManager.ActiveVoices.AddLast(voice);
                voice.Start();
            }
            // Clear layer list
            for (int x = 0; x < layerCount; x++)
                _layerList[x] = null;
        }