Trouble with SI-Bass

Working on a project where I want to uswe SI-Bass.  Other projects seem to work normally, but this project, I insert the bass, it plays when I pluck a string, and starts when I start the project with a bass midi line input.  Very soon after starting, it stops reproducing sound.  Nothing I do will bring the sound back.  Opening the interface, the controls respond, but no sound is produced and the string does not vibrate when plucked.  Unlike other projects using public domain midi, this file came from Hit Trax, a retail karaoke source of midi files.  I have looked at the event log for this file and removed control and wheel entries so there is nothing but note events.  Still the midi does not trigger the SI bass.  It is in the SI-Bass as the midi will trigger other synths.  What is wrong with the SI-Bass and how can I get it working?
 
Thanks!!

I've found that with some midi files I have had to transpose the SI-Bass up a full 12 octaves in order to get the notes to play.  It's the little scroll button next to the program name in the SI-Bass interface.  If I don't do that some notes may play and some may not.
Hope that helps.
Terry

Yeah, the notes need to be in the range of the instrument and sfz engine synths (the SI series, DimPro, Rapture, Session Drummer) can go silent if they receive unexpected MIDI data. When they go silent, I believe the only way to get them playing again is to reload the project or replace the synth with another instance.

I've had issues using the SI bass in the past. It seems a little buggy for some reason. On my old computer it would often cause the audio engine to stop. So stopped using for a long time. I tried it the other day with my new computer and it seems fine now. And yes for some reason they have set it in a non standard note values. I have to transpose up 12 ( 1 octave) from what played fine in TTS-1. PS try the Jazz bass patch the default sucks. 

I'm fairly confident that transposition is the correct answer. A lot of bass synths/patches are programmed to sound an octave or more lower than written. I presume the intent is to make them easier to work with on a 61- or 49-key controller. The easiest way to deal with pre-existing MIDI files that don't use this convention is to enter a positive Key Offset value in the MIDI track.

brundlefly
I'm fairly confident that transposition is the correct answer. A lot of bass synths/patches are programmed to sound an octave or more lower than written. I presume the intent is to make them easier to work with on a 61- or 49-key controller. The easiest way to deal with pre-existing MIDI files that don't use this convention is to enter a positive Key Offset value in the MIDI track.

When Mauryw starts the IS Bass, using the midi data, he said that the IS Bass becomes unresponsive. I don't believe that out of range notes will create an unresponsive soft synth. This is a symptom of the intercept NRPNS function. Peace!    

I had a number of similar issues with SI-Bass (although in the case of a Karaoke track, there could be SysEx messing you up as well). I also found that my MIDI buffer caused me problems with this instrument until I set the buffer higher.
 
This is not what you asked, but I bought three Scarbee basses from Native Instruments (Rick, Precision, and J-Bass), and the J-Bass alone covers 90% of my needs (with the disclaimer that SI-Bass sounds more like a Precision bass to me but not as live).  I am a big J-Bass guy and use the Rick for special things.
 
The Gibson 5-String Craig created that is available in the Cakewalk store is also excellent and will probably do most anything you need.  If I had bought it first, I may or may not have bought the Scarbees, but since I am most familiar with them, they tend to be my defaults.

Cactus Music
I've had issues using the SI bass in the past. It seems a little buggy for some reason. On my old computer it would often cause the audio engine to stop. So stopped using for a long time. I tried it the other day with my new computer and it seems fine now. And yes for some reason they have set it in a non standard note values. I have to transpose up 12 ( 1 octave) from what played fine in TTS-1. PS try the Jazz bass patch the default sucks. 

Part of this is that the default preference in sonar for base octave for pitches is (C)0 when the default for the sfz format and synths that run on that spec is (C)-1.  Throw in the fact that NI instruments use c-2 then it gets a bit confounding!