From the "Troubleshooting" section of the jBridge site....an interesting comment:
23 – “I am using a 32bit operating system that only detects 3.5Gb of RAM, although I have 8Gb in my machine. Will I be able to use more than 3.5Gb of RAM in my 32bit OS with jBridge?”
- No, this is not possible. jBridge can only use the RAM your OS can provide, therefore, a 64bit operating system is strongly recommended.
The answer by JBridge squares with everything I've learned except from this site.
Aside on the original poster's question: I'm not sure where they got 3.5 Gb; the available RAM on a typical 32-bit OS would normally be lower than that, after some is appropriated by Windows.
BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.
I have 32 bit windows 7 myself and no point in even buying jbridge as software like sampletank 3 won't even install on my OS, get error message that it needs 64 bit OS.
I did ask a question along these lines a week or so ago and both Matt and Rharv confirmed what I thought.
Windows 10 (64bit) M-Audio Fast Track Pro, Band in a Box 2025, Cubase 14, Cakewalk and far too many VST plugins that I probably don't need or will ever use
Besides it being obviously true - why exactly is it interesting?
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
The JBridge site confirms exactly how it worked with Ableton before they finally did a real 64-bit version. I could reliably crash JBridged Kontakt loading a large orchestral template. That is what led me to ditch Ableton and move to Cubase back then. And really, getting even 3.5G required doing some tricks to load stuff into high memory.
Instead of trying to use JBridge to make a 32-bit BIAB work with 64-bit VSTs, the correct decision *should* have been to make a 64-bit BIAB, and use JBridge to connect to legacy VSTs that were 32-bit only.
Based on everything I've read, and a support chat I had with Andrew a few months ago about 64-bit, I expect to see a 64-bit BIAB by roughly the middle of never. He cited 2,000 or 20,000, or some ridiculous number of VSTS that 'could never run' on a 64-bit BIAB.
RAM and memory management may be different animals. It may be possible in principle to design some wrapper handling some big GB data via swapping like hell with a 32 bit OS. The litmus test would be some benchmarks with a variety of genuine 64 bit big data plugins.
Are such benchmarks available with jBridge? I'm not sure about the memory requirements of those listet at www.pgmusic.com/jbridge.htm.
I figured that was the implied reason for the post in the first place: just a continuation of the other uh,hmm… "discussion" thread about 32 bit BIAB.
1. What was said above by the JBrdige developer and allow me to quote the quote (and if the quote is wrong then it was first posters mistake):
"- No, this is not possible. jBridge can only use the RAM your OS can provide, therefore, a 64bit operating system is strongly recommended."
2. The above statement does NOT, in my simple minded opinion, contradict anything Peter said. I am not going back through the rat's nest of the previous thread to find other statements so I assume it was Peters statements you are thinking of? If not than mea culpa. But then again ONLY Peter's and PG's comments mean anything on the topic until users can definitively show that JBRIDGE, from within BIAB, CANNOT access more than 4 GB of softsynth instruments/samples. As an FYI, on my PC using ST3 and 64 BIT Kontatk5 (which is not a nice VSTi in the first place - it is the worst memory hog I run) and BIAB 2015 (v412) and JBRIDGE I can load and listen to more than 4GB's of sampled instruments in BIAB. I even mixed it up and used ALL ST3, ALL Kontack 5 and a mix each of ST3+Kontact5 I used those VSTi's because they have some large instruments in their library's and they let me see/know how much RAM is being used.
3. Here's what I THINK JBridge did say in those few words quoted above:
JBridge can only use the RAM (up to individual physical MoBo limit) that the OS (Win 7 64, Win 8 64, Win X,...) allows. And within those 64-bit OS allowances, which we all know is bigger than 4 GB, then JBridge , and JBRDIGE is all it said, can and should be able to access more than 4 GB (or 3.5 or whatever it is on each MoBo. Please, let' s not split hairs we'll just call it the 32 bit "wall" of 4 GB). Additionally, the JBridge developer goes on to say that a 64 BIT OS (again Win 7 64, win 8 64, Win X…) is recommended.
More precisely to my point, NOWEHERE does the JBridge developer make ANY claims, statements, assertions, assumptions about PG 32 bit BIAB or Cakewalks 32 bit version of Sonar 32, or any other mfg's 32 bit application - he was only talking about the OPERATING SYSTEM. He not only does not mention 32 bit APPLICATIONS, he makes no claims, statements, assertions, assumptions that those same applications cannot use JBridge to access as much memory as the OS allows, in spite of JBridges' instantiation being called up by a 32 bit application.
Larry
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
Wise words, thanks. I looked and couldn't find the exact text, so I am very comfortable admitting that this is all very confusing. I was a comp sci prof and thought I understood something about the architecture of a 32-bit OS but if a utility can overcome its limitations, then that's outstanding. I wish I could test it myself but I've been on 64-bit Windows, and all 64-bit apps and plugins except for BIAB, for several years. The one thing I trust without hesitation is that Dr. Gannon will do the right thing as best his company can.
BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.
You have it right, a utility can't overcame limits of 32 bit OS - that's what he said and I concur
But BIAB as we all know is not an OS - just an app. so we have one app, JBridge , working to gap the limits of another app, BIAB within a 64 bit OS
Larry
And I ain't no comp sci weenie just a lowly re- re-retired mathematician/ops. researcher
Ps when are you ever going to give a review of the Integra 7 over Fantom XR ?
Last edited by Larry Kehl; 12/16/1406:42 PM.
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
Someone asked me before if using jBridge in Windows XP 32bit in a computer with 8Gb of RAM would allow him to use ALL the installed RAM.
The last time I checked, in my laptop, Windows XP/Vista/7 32bit only "see" a maximum of 3.5Gb, even if the computer has more RAM installed ( I am not getting into details such as memory remap or PAE, in some cases a 32bit OS can "see" more than 4Gb of RAM, but with the 32bit versions of XP/Vista/7 you're limited to less than 4Gb ).
So, to have all that RAM available you should use a 64bit version of Windows, which can "see" all the RAM, and can still run your 32bit applications.
Suppose you have 16Gb in you machine, you're running a 64bit version of Windows, and you want to use BIAB ( which is a 32bit application ):
A 32bit application is theoretically limited to 4Gb of addressable RAM ( depending on some technical factors, some 32bit applications can crash if they use more than 1.2Gb of RAM ), but the advantage of running a 64bit OS is that you can run several 32bit applications, each one using up to 4Gb, so you'd have 4Gb+4Gb+4gb+4Gb, etc.
That is, if you use bridging in BIAB in a 64bit OS, you can certainly use all the RAM available, but keep in mind that if you're bridging a 32bit plugin, each instance of that 32bit plugin should not exceed a certain amount of RAM usage ( I've seen 32bit plugins going above 3GB without any problems, I've seen some older ones becoming unstable after 1.5Gb ). You can use several instances of the plugin to workaround that issue.
But, if you're bridging a 64bit plugin to a 32bit DAW, no such limitation applies, a 64bit plugin can use all the RAM your system has available in a single instance, no matter if you're bridging it to a 32bit DAW, since it runs in its own 64bit process. :-)
The image below is vastly over simplified, but may clear up a couple things.
If the the OS is 32 bit, 4 Gig is all you have available to work with. If the OS is 64 bit you can have more, but BiaB can only access the same as the 32bit OS, as it is a 32 bit app. So No matter whether you have a 32 bit OS or 64bit OS, BiaB only uses the same amount as a 32 OS would on that system (we can argue all day on whether that is 3.5, 3.8 or 2.8 gig .. it is under 4 gig for sure). But being a 32 bit app BiaB only uses (and needs) under 4 gig, so no problem.
The issue is when a plugin is 64 bit (and you have a 64bit OS) Biab used to limit you to the 32bit memory limit, so the 64 bit app wouldn't run. JBridge allows the 'plugin' to use more RAM, even though BiaB technically doesn't. So it 'appears' as though BiaB has access to more RAM, but really it is the plugin that does. This is fine (since BiaB needs less than 4 gig of RAM to run itself; only additional plugins can raise it over that limit).
JBridge is not just a '3rd party solution'. It is integrated into BiaB and RB so it appears you are not using a 3rd party app .. it just loads the 64 bit plugin into the song and works. IMO this is what is meant by natively supported.
In a 64 bit OS I think it works like this:
I do not work here, but the benefits are still awesome Make your sound your own!
On a 64 bit OS, Band-in-a-Box 2015 (with jbridge) lets you use a 64 bit plugin that might (for example) use 28 GB of memory, or any huge amount that you have on your PC. You're not limited to 4GB with. 64 bit plugin. There should be no difference between how this would behave if BiaB was a 64 bit app or a 32 bit app. As a bonus your 32 bit VSTs also work with BiaB.
Thanks, I think I understand this now. So for Jbridge (the version you get here) to access more than 4GB for a specific plugin used in BIAB 2015, the operating system has to be 64-bit and the plugin has to be 64-bit and of course, you need more than 4GB RAM installed. Is that right?
BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus 192 & Faderport 8, Royer 121, Slate VSX, Adam Sub8 & Neumann 120 monitors.
(can't wait until some asks: "can BIAB 32 work with WIN 8/Win X to talk to the newer models of external MIDI sound modules and workstations)
Larry
Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20
Band-in-a-Box 2026 for Windows Special Offers End Tomorrow (January 15th, 2026) at 11:59 PM PST!
Time really is running out! Save up to 50% on Band-in-a-Box® 2026 for Windows® upgrades and receive a FREE Bonus PAK—only when you order by 11:59 PM PST on Thursday, January 15, 2026!
We've added many major new features and new content in a redesigned Band-in-a-Box® 2026 for Windows®!
Version 2026 introduces a modernized GUI redesign across the program, with updated toolbars, refreshed windows, smoother workflows, and a new Dark Mode option. There’s also a new side toolbar for quicker access to commonly used windows, and the new Multi-View feature lets you arrange multiple windows as layered panels without overlap, making it easier to customize your workspace.
Another exciting new addition is the new AI-Notes feature, which can transcribe polyphonic audio into MIDI. You can view the results in notation or play them back as MIDI, and choose whether to process an entire track or focus on specific parts like drums, bass, guitars/piano, or vocals. There's over 100 new features in Band-in-a-Box® 2026 for Windows®.
There's an amazing collection of new content too, including 202 RealTracks, new RealStyles, MIDI SuperTracks, Instrumental Studies, “Songs with Vocals” Artist Performance Sets, Playable RealTracks Set 5, two RealDrums Stems sets, XPro Styles PAK 10, Xtra Styles PAK 21, and much more!
Upgrade your Band-in-a-Box for Windows to save up to 50% on most Band-in-a-Box® 2026 upgrade packages!
Plus, when you order your Band-in-a-Box® 2026 upgrade during our special, you'll receive a Free Bonus PAK of exciting new add-ons.
If you need any help deciding which package is the best option for you, just let us know. We are here to help!
Band-in-a-Box® 2026 for Windows® Special Offers Extended Until January 15, 2026!
Good news! You still have time to upgrade to the latest version of Band-in-a-Box® for Windows® and save. Our Band-in-a-Box® 2026 for Windows® special now runs through January 15, 2025!
We've packed Band-in-a-Box® 2026 with major new features, enhancements, and an incredible lineup of new content! The program now sports a sleek, modern GUI redesign across the entire interface, including updated toolbars, refreshed windows, smoother workflows, a new dark mode option, and more. The brand-new side toolbar provides quicker access to key windows, while the new Multi-View feature lets you arrange multiple windows as layered panels without overlap, creating a flexible, clutter-free workspace. We have an amazing new “AI-Notes” feature. This transcribes polyphonic audio into MIDI so you can view it in notation or play it back as MIDI. You can process an entire track (all pitched instruments and drums) or focus on individual parts like drums, bass, guitars/piano, or vocals. There's an amazing collection of new content too, including 202 RealTracks, new RealStyles, MIDI SuperTracks, Instrumental Studies, “Songs with Vocals” Artist Performance Sets, Playable RealTracks Set 5, two RealDrums Stems sets, XPro Styles PAK 10, Xtra Styles PAK 21, and much more!
There are over 100 new features in Band-in-a-Box® 2026 for Windows®.
When you order purchase Band-in-a-Box® 2026 before 11:59 PM PST on January 15th, you'll also receive a Free Bonus PAK packed with exciting new add-ons.
Upgrade to Band-in-a-Box® 2026 for Windows® today! Check out the Band-in-a-Box® packages page for all the purchase options available.
Band-in-a-Box 2026 Video: The Newly Designed Piano Roll Window
In this video, we explore the updated Piano Roll, complete with a modernized look and exciting new features. You’ll see new filtering options that make it easy to focus on specific note groups, smoother and more intuitive note entry and editing, and enhanced options for zooming, looping, and more.
Band-in-a-Box 2026 Video: AI Stems & Notes - split polyphonic audio into instruments and transcribe
This video demonstrates how to use the new AI-Notes feature together with the AI-Stems splitter, allowing you to select an audio file and have it separated into individual stems while transcribing each one to its own MIDI track. AI-Notes converts polyphonic audio—either full mixes or individual instruments—into MIDI that you can view in notation or play back instantly.
Bonus PAK and 49-PAK for Band-in-a-Box® 2026 for Windows®
With your version 2026 for Windows Pro, MegaPAK, UltraPAK, UltraPAK+, Audiophile Edition or PlusPAK purchase, we'll include a Bonus PAK full of great new Add-ons for FREE! Or upgrade to the 2026 49-PAK for only $49 to receive even more NEW Add-ons including 20 additional RealTracks!
These PAKs are loaded with additional add-ons to supercharge your Band-in-a-Box®!
This Free Bonus PAK includes:
The 2026 RealCombos Booster PAK:
-For Pro customers, this includes 27 new RealTracks and 23 new RealStyles.
-For MegaPAK customers, this includes 25 new RealTracks and 23 new RealStyles.
-For UltraPAK customers, this includes 12 new RealStyles.
MIDI Styles Set 92: Look Ma! More MIDI 15: Latin Jazz
MIDI SuperTracks Set 46: Piano & Organ
Instrumental Studies Set 24: Groovin' Blues Soloing
Artist Performance Set 19: Songs with Vocals 9
Playable RealTracks Set 5
RealDrums Stems Set 9: Cool Brushes
SynthMaster Sounds Set 1 (with audio demos)
Android Band-in-a-Box® App (included)
Looking for more great add-ons, then upgrade to the 2026 49-PAK for just $49 and you'll get:
20 Bonus Unreleased RealTracks and RealDrums with 20 RealStyle.
FLAC Files (lossless audio files) for the 20 Bonus Unreleased RealTracks and RealDrums
MIDI Styles Set 93: Look Ma! More MIDI 16: SynthMaster
MIDI SuperTracks Set 47: More SynthMaster
Instrumental Studies 25 - Soul Jazz Guitar Soloing
Artist Performance Set 20: Songs with Vocals 10
RealDrums Stems Set 10: Groovin' Sticks
SynthMaster Sounds & Styles Set 2 (sounds & styles with audio demos)
One of our representatives will be happy to help you over the phone. Our hours of operation are from
6:00AM to 6:00PM PST (GMT -8) Monday thru Friday, and 8:00AM to 4:00PM PST Saturday. We are closed Sunday. You can also send us your questions via email.
One of our representatives will be happy to help you on our Live Chat or by email. Our hours of operation are from
6:00AM to 6:00PM PST (GMT -8) Monday thru Friday; 8:00AM to 4:00PM PST (GMT -8) Saturday; Closed Sunday.