Is there a way to stop BIAB sending a forced sample rate change to my Audio interface (i/f) ?

I need to hold the i/f sample rate at 48khz (using with a keyboard that is fixed at 48 - and if the i/f goes to 44.1, I get fuzzy sound)

I notice that each time a song with real tracks (audio) gets played it automatically resets the audio i/f to 44, so can this be blocked or stopped somehow? I know BIAB is locked to 44, but can I stop it controlling my i/f?

Thanks

Band in a Box is locked to only 44.1KHz sample rate.

I don't understand what you are trying to say about having a keyboard that is locked to 48KHz. Doesn't make sense that this should bother BB at all.

If you give the make and model of keyboard, plus how you are connecting that keyboard to your computer, we can likely get to the bottom of this problem.

This sounds like a Setting in your Audio Interface is not set properly to use both BB and this keyboard. For example, use of ASIO sound drivers and a Setting in the Spound Device's Control Panel to lock at 48KHz is not the way to go with BB. Instead, a setting that allows host programs to control the rate should be used, or MME drivers.

And here again we need more information - Make and Model of the Sound Device would allow for posters to give you more specified information on how to get it all up and running properly.


--Mac

Hi Mac...

Okay - 1, as you would know, if audio sample rates between two devices are mismatched you get all sorts of artefacts and digital noise. I am using the spdif out from my keyboard to the Presonus Firestudio M. The keyboard has a FIXED sample rate over spdif of 48, ergo the PFM also needs to be at 48.

2. I am using BIAB for the playback of songs only, NO recording...and in essence a wav/wma file at 44 will still play fine if a device is set to 48, or even 96. I can understand if I was recording audio but I am only playing back.

3. All audio interfaces can ONLY operate at one sample rate at a time - they cannot accept multiple sample rates concurrently as you would know, so both items (BIAB and the Keybaord need to be both at 48)

I did think of a work around last night though, as it is only playback I might be able to get by with using MME (as PG music seem to still be in the dark ages with audio - no WDM and no WASAPI) and then use the laptop headphone out port, but this is a "sticky" solution at best.

As I see it there is no alternative, at this stage, other than to look at an alternative to BIAB.

I did try Realband as it will allow both devices to run at 48, BUT it is horrendously slow at loading realtracks. Certainly not acceptable for using live....

I cannot use the normal analogue L/R out of the keyboard (Kurzweil PC3) as they are quite "noisy" at stage levels, and I think you will understand what I mean by that . The sPdif gives me a really nice solid and noise free output....

Cheers
Dennis

Lot of assumptions going on there, Dennis.

I use the PC3's analog outputs to stage amps quite a bit and mine is not noisy.

If yours is, something is either amiss in your Gain Staging, Amplifier Input or the likes. How much noise do you get on them? There might be something in need of repair, or it might be one of the already mentioned things.

There is no real need to use the Spudiff output in live or even in recording. Sure it would be nice, but if the chosen software can't support it, I'd go with the analog outputs of the keyboard.


--Mac

I notice the noise when the i/f is ramped a bit...if I go from the PC3 LE outs straight to a powered FOH, it is not as noticeable I must admit.

I have sorted it in any case Mac, as I have gone a tweaked a few levels here and there to get the best s/n I can get, and it is quite acceptable.

One thing I did find out was using balanced cables with the Kurz is an absolute MUST!!

I suspect most of the noise was coming from the use of unbalanced cables, even though only about 3 feet long and not going anywhere near power cables.

So 44 is now not that big a deal, but it still would be nice to get 48. It would save the Presonus FSM resettting all the time when swapping from Sonar to BIAB

Thanks for you help m8

Dennis

PS: Do you happen to use the Soundtower editor? I am having lots of issues with it "dropping" the USB Midi after a few edits...I am speaking with ST now but all they seem to want to do is find something else to blame I am running the latest Kurz OS, and W7 is 100% UTD!! I even have USB selective suspend set to off as well...

Sonar otoh, is rock solid with using the USB midi connection with the PC3...

Quote:

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One thing I did find out was using balanced cables with the Kurz is an absolute MUST!!

I suspect most of the noise was coming from the use of unbalanced cables, even though only about 3 feet long and not going anywhere near power cables.

PS: Do you happen to use the Soundtower editor? I am having lots of issues with it "dropping" the USB Midi after a few edits...I am speaking with ST now but all they seem to want to do is find something else to blame I am running the latest Kurz OS, and W7 is 100% UTD!! I even have USB selective suspend set to off as well...

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I have the full PC3 not the LE version and I've never had any noise at all but I did have some noise with my new Behringer B208D's that I use for stereo on stage monitoring. I switched to balanced cables and that went away. My main speaker is the EV ELX112P and while I never heard any noise, switching to a 10' balanced cable seemed to give me a bit more power. Not much but I noticed it.

I have the ST editor and it seems to work fine but I'm hardly an expert with it. Some of the pro's over at Sonikmatter say that it's buggy when using it for some deep editing but other than that it works fine. You might want to go over there and do a search before the site goes down forever at the end of the month. A lot of the regulars have already started posting at Keyboard Corner with Kurzweil questions so that may be a good option going forward along with Kurz's Facebook page.

Anyway to your main question I see no need for using spdif.

Bob