I realise that the way the Subject line is worded might make it seem that NoteWorthy Composer (NWC) is the cause of the problem but I don't believe that to be the case. I have used it for decades and know that accidentals have to be matched across bar lines or the problem will occur so I am always careful when incorporating tied notes in my compositions.
I was recently forced to consider buying a new computer after my 13-year old Windows XP machine started giving me serious trouble. It incorporated a Creative Soundblaster 'Audigy 1' soundcard and after updating the driver early on I was very pleased with the sounds it produced when using NWC. My compositions tend to be mainly electronic/synth in nature although some of them are piano based. My new computer contains an ASUS motherboard with a quad core Intel i5-6400 @ 2.7 GHz CPU and 8 GB of DDR3 RAM. The sound system is an on-board Realtek so-called 'High Definition Audio' and I'm very pleased with it's performance. The operating system is 64-bit Windows 10 Pro.
When I first used the new computer, I knew nothing about VirtualMIDISynth and the Microsoft GS Wavetable Synth was the only MIDI output device available for use with NWC. A short time with it made me realise that there had to be something better as it was awful. I joined the NoteWorthy Composer forum and soon learnt about VirtualMIDISynth and the whole new world of soundfonts, which I previously hadn't been aware of. I tried one or two of the latter that had been suggested but I didn't like them as they didn't produce the sounds I was used to. Then someone told me about three Creative soundfonts ha had and he even set up links so I could download them and I now use one of them continually set up in VirtualMIDISynth. I have set up the latter as the default playback MIDI device in NoteWorthyComposer and I am now hearing sounds that are very similar to those I used to hear in specific compositions.
However, unfortunately, every so often - and totally out of the blue - I am confronted with what I term 'stuck notes' where a note will continue to sound long after it should have ceased and in many instances the only way to stop it is to close NoteWorthy Composer, then reopen it. Merely stopping the work from playing (pressing F6) does not stop the sound. To make matters worse, it is intermittent and does not always occur in the same place each time. Not surprisingly, its presence is spoiling my enjoyment. Recently I read an article comparing VirtualMIDISynth and BASSMIDI and this very problem was mentioned with regard to VirtualMIDISynth and that BASSMIDI did not suffer from it.
Incidentally, I've tried changing some of the settings in VirtualMIDISynth but I haven't been able to eliminate the problem. I really like the program so hope a solution can be found.
Thank you.
Johnno