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Hi Blake: No can do with MME. ASIO buffer size is 4096. The same ASIO driver is used in both BIAB and RealBand, so I don't feel that it is to blame. Seems something inherent in BIAB (and not in RealBand) is behind this particular problem, no?

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Quote:

Interesting update:

I made separate files of the RT and midi 12-bar chart, and then listened to them in RealBand. First, both played flawlessly. Second, in each case the melody track was approximately 18 bars long and contained notes stretching beyond the 12 bar ending. I have no idea where these came from, but they are there in RB. Deleting them in RB made no difference: in each case, the triplets were replicated correctly.




I see exactly what you mean. Here is Jeff's Lick in RB:




Unfortunately, no explaination.


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Bob,

I have no more ideas. Sorry. The file works fine for me so that seems to indicate that it might be something in your set-up.

Some questions spring to mind ...

1. Have you installed the latest update for your version of BIAB?

2. Have you restarted your computer from its fully off status and not suspend?

3. Does the problem persist with other RT styles?

In one of your above posts, you mentioned some other thoughts. They sounded good.

I agree with you. Try installing ASIO4ALL and seeing if it makes a difference. ASIO is a strange animal and it's caused many people issues here in the forums.

You mentioned above that you were creating a new song file. To be honest, if I was having this problem, that's exactly what I'd be doing now. I wouldn't be copying and pasting anything though as the very nature of copy/paste means it's possible to transfer the issue.

Kind regards,
Noel


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Bob_B Offline OP
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Hi Noel et al:

First and foremost to all who have offered ideas and suggestions: THANK YOU! I greatly appreciate your efforts. Noel, to address your questions: Yes to all three. I think I have to look at my preferences in BIAB. Since both midi and RT files play correctly in RealBand, which uses the same hardware and driver to render audio, I conclude that BIAB is where the problem lies. So, just as soon as I can, I plan to reset everything to factory default settings, using the ALL setting in the reset option. Once reset, I'll use the ASIO4ALL driver and ForteDXi with the prediction this configuration will work. If so, I'll add back in succession the M-Audio ASIO drivers, the Ketron SD2 patch map, etc., and start changing to suit my preferences. Hopefully, through this process, I'll find what is creating the RT/melody issue. I'm somewhat comforted by knowing that the tracks work in RealBand. That at least gives me some assurance that it isn't a general hardware issue. (Ditto for Sonar X1c. No problems whatsoever with it either.)

If anyone has additional thoughts or opinions, please share them. I'll post back with the results. Wish me luck,


Bob aka jazzwombat

Last edited by jazzwombat; 12/28/11 07:50 AM.
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Hi jazzwombat,

If possible, try setting the buffer size lower - 512 would be a good place to start. You will need to close and re-open Band-in-a-Box after changing this setting.

1024, 2048, or 4096 may be a more stable setting for you, but this would just be a troubleshooting step.


Blake

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Bob_B Offline OP
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Thanks Blake. I'll give it a try. Would you mind explaining why a small ASIO buffer might rid this problem? I ask simply to learn more about what's going on 'under the hood' with ASIO drivers?

Cheers,

Bob

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Having an overly large buffer size (2048 being considered large) can lead to poor midi timing from the DXI VSTi synth.

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Thanks, but I thought, since I use a hardware synth (Ketron SD2) and not a software synth, that wouldn't be an issue. Wrong?

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Your right hardware would unaffected by ASIO buffer size. I'll see what else I can find out for you.

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I changed from using the M-Audio Fasttrack ultra ASIO driver and Ketron SD2 patch map to the ASIO4ALL driver (12 ms latency), the default patch map, and Forte DXi synth. This combination _works flawlessly_ with both the midi and RT styles used previously.

I then switched to the M-Audio ASIO driver: the RT-melody problem returned. I confirmed this was not due to the Ketron SD2 patch file nor the Ketron SD2 itself. So, it appears to be a direct result of the M-Audio driver (I guess... second opinions welcomed).

The question becomes: what can I do? I have the latest driver version (5.10.0.5100; firmware 1.51). I don't want to buy another hardware audio interface or synth (the Fasttrack is less than 1/2 year old and I'm happy with the Ketron SD2); however, I am unwilling to live with this problem. There are not many things I can (as a user) to change the settings on this driver: I have options for sample rate (currently 44.1 kHz and not changeable), ASIO/WDM buffer size (currently 4096 samples; I tried going down to 512, this didn't help), clock (set to internal not changeable); "enable asio direct monitoring" (currently off; tried turning it on -- didn't help), and "effects" (currently "Echo" with duration, feedback, and volume set to minus infinity. There is "no effect" setting; the default is "Echo"). The driver panel allows monitoring of the eight channels on the Fasttrack. I have the volume sliders for channels 1-2 (mic in, when I use a mic) and channels 5-6 (Ketron in) set to max. There is a set of knobs below each channel labeled "send": channels 1,2,5, and 6 are all set to minus infinity. The master out volume is at max and its return set to minus infinity. That's all I can alter. Anyone see anything that might be wrong with these settings?

Anyone have suggestions on how to proceed?


Thanks for the help!

Bob aka jazzwombat

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I'd be checking the M-Audio support page on their website to see if they haven't released an updated driver for the device.

There may also be *more than one* driver published, sometimes they leave up an older one that is known to work better with some systems as well as the latest one. So check what version number the driver you already have against any new ones posted there.

If there is a difference, try downloading and installing the new driver.

Sometimes simply reinstalling the same version driver can correct problems as well, in the event that a driver file becomes corrupted.


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But the driver works in Real Band, right ?

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Mitch: Yes, you have it correct. The driver works fine in Real Band (and with Sonar X1c, as far as I am aware). Go figure. lol.

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Thanks Mac. I'll be doing that on Saturday, when I have a bit more time to go over things. I know you're a big one for pressing "return to factory settings" when problems in BIAB arise. I have not done a complete reset. What do you think, would this be worth a try? Maybe before reloading the driver or trying older versions?

Bob aka jazzwombat


addendum: Just checked the M-Audio site, there is but one driver for the Fast Track Ultra, with no beta drivers listed. Well, that eliminates one possibility, although I may take the time to reinstall it, just to be doubly safe.

Last edited by jazzwombat; 12/29/11 09:44 AM.
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Bob,

It's safe to do a full reset as BIAB saves the pre-reset set-up these days. This means you can always return to what you had if the full reset does nothing.

Regards,
Noel


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I think I _may_ have solved the problem. (At the very least, the real tracks backing with the original melody currently sounds fine.) Here's what I did:

I read the FastTrack Ultra Manual several times. Not the best user manual, I must say. From that, I reset the driver configuration to:

bypass on channels 1/2 and 3/4 (this removes all send to the internal FastTrack DSP)
ASIO buffer size set to 256
enable asio direct monitoring

all other parameters were left as originally indicated in my previous posts

I am at a loss to explain why these changes now have corrected the problem. So, I only tentatively offer this as a solution. I'll shutdown and restart my computer, and I'll post back what happens. Wish me luck.

BTW, Noel: thanks. Yes, I agree with you, resetting to factory defaults in 2011 is much better than in years gone by, much better.

Bob aka jazzwombat

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Bob did you happen to change the actual usb plug you were using during this?

Lots of problems seem to arise when you say install slip printer 1 into usb 2,then one day flop that and the other printer around during a reconfig and nothing works until they go back to their 'home' spot. Weird or what?


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Hi John,

No, I did not change the usb plug's location (physical port on the computer), but I agree that doing so frequently causes problems and the reinstallation of usb drivers.

I listened to the RT style with the melody this morning, and I'm happy to say that the fix has stuck and all sounds good. So, I have corrected the strange melody problem in BIAB. Honestly, I don't know which of the changes made the difference, and I guess I shouldn't care too much. It's working, so all is good.... for now. lol.


Bob aka jazzwombat

P.S. I will delete the soundclick files pertaining to this problem Jan 8, 2012.

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