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Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 14:55

just for fun used SheepShaver to install the Macintosh version - interesting, even VSC 3.x retail distribution comes with VSC 2.1 for Macintosh. So, that makes the only known version for Mac to be 2.1. the sound bank in Mac is called "VscStdSet", but it's actually "vsc88" from VSC 2.x for Windows. …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 07:32

OMG, while looking to make more sense of the Sound bank unencrypted header, I noticed another flaw in Roland encryption - due to the nature of the data and the encryption algorithm, as a side effect, the encryption key gets stored in plain text in the encrypted data section at offset 0x50 in the …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 06:30

Here is the list of GS standard drum sets (later SC devices of course expanded it) 0 Standard Kit 8 Room Kit 16 Power Kit 24 Electronic Kit 25 TR-808 /909 Kit 32 Jazz Kit 40 Brush Kit 48 Orchestra Kit 56 Sound FX Kit 127 CM-64/CM-32L Many thanks, that fully explains it - basically both " CM-64/CM- …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 05:49

likely that you have found the reference text for the GS standard TR-808/909 drum kit that can be found on any SC devices starting from SC-55 at channel 10/Program 25. So no full emulation , just samples for a drum kit. I see, I really hope, someone that actually have good knowledge about those …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 05:25

In this post I want to compare differences between some of the available VSC Sound Banks. Instead their actual filename, I will use descriptive name - for example "vsc100_sc55_trial", which is self-explanatory and obviously means "SC-55 Sound bank from VSC version 1.00 Trial". offset 0x10 : 0x30 …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 04:48

In this post I want to make list of All VSC Sound Banks that are available and can be used in Format analysis effort: VSC 1.00 Trial ("VSC55T.EXE") : SC-55 Sound bank "vsc.dat", size: 1,452,448 bytes VSC 1.00 to 1.20 Update ("v5up120e.exe"): no new Sound bank is included with the update VSC 1.20 …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 03:42

@Stretch thank you, at the moment, the 2nd post is useful to me, because it shows where in the VST DLL v1.60 the Sound Bank data are embedded. I think to prepare post, were I collect information for all VSC Sound Banks available and especially those that allow direct comparison between their …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-23, 03:32

@Falcosoft , thanks for the info. I guess is some compatible with "CM-32/64 sound bank" definition, but as you said nothing close to the real device or what Munt is capable to do. I guess same is with TR-808/909 text I found in the VSC Sound Bank - interesting, now Roland has VST that is TR-808 …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 20:30

I figured out few bytes from the Sound Bank Header: * there is text string "0.97" (VSC 1.x), "1.01" (VSC 2.x), etc, which obviously is the Version of the Sound Bank * also the Sound Bank Size is very obvious, for example there is "A0 29 16 00", which written as 001629A0 in hex is 1452448 decimal …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 18:55

BTW, the VSC decrypted Sound Banks contain information about "CM-64/32L", possible copy of its ROM (maybe Roland included their own "MUNT" in the VSC soft-synth, who knows?!) - to show the encrypted section and the one decrypted with "vscdec.c" i am attaching the corresponding screenshots.

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 18:16

I was wondering how you'd concluded it was decrypted, being that you don't know the format of the data? by getting readable ASCII strings in the data. [EDIT] add screnshots to make it more clear - how Encrypted and Decrypted data block looks like. it's the same with VSC Sound Banks - I am not sure …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 16:48

I am releasing my decryption code - it's attached to this post. Contrary to the old 'sm0n' release: https://www.vogons.org/viewtopic.php?t=13865 it doesn't use hard-coded decryption key, but rather it is able to find the key. That allows it to work not only with VSC 3.x as the old 'sm0n' release, …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 13:28

Big news (at least to me, maybe it was done in the past, but I am not aware of it - if you know, let me know, to prevent me reinventing the wheel): So, I was able to decrypt small portion of the Sound bank from ROM dump from real SC-55 hardware device! Yes, only "small portion" for the moment, …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 11:10

for completeness, i've just found this link in the web-archives: https://web.archive.org/web/20050205022507/http://www.edirol.com/products/info/archive/vsc88h3.html indeed VSC 3.x was released for MacOS too. So, that's consistent with what 'Jo22' poster earlier in this forum thread: https://www. …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 09:06

Guys, I've already moved several steps further from what 'sm0n' did, all those years ago, here : https://www.vogons.org/viewtopic.php?t=13865 We're very lucky that in VSC 3.x Roland messed up the Sound Bank encryption big time (thank you, whoever Roland employee did that! BTW, when such thing …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-22, 05:34

mattw, there is code posted in vogons.org which decodes the bank format here: Virtual Canvas Sound Banks @Stretch, big thank you! And even Bigger thank you to the person made that post with full details for the encryption algorithm almost 15 years ago!! Wow, it's amazing that the Sound banks from …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-21, 13:59

Roland Virtual Sound Canvas 3.x I fully covered in the first 3 posts, as well as subsequent and last from the series Roland Virtual Sound Canvas MP1 (Multi-pack V1), which is VSC 3.23 + VST version of the soft-synth. So, I have nothing to add. Now, we can only hope someone will reverse-engineer the …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-21, 13:10

Roland Virtual Sound Canvas VSC-88 (Official name) Roland Virtual Sound Canvas 2.x (Unofficial name) Year of Release: 1997 (I must say very impressive, because according to Roland Help files, it emulates Roland SC-88VL, which means that less than 1 years after they released the SC-88VL hardware, …

Re: About Roland Virtual Sound Canvas 3

Posted on 2020-09-21, 11:08

OK, in the next several posts, I will post version by version all the information I collect, starting here with: Roland Virtual Sound Canvas VSC-55 (Official name) Roland Virtual Sound Canvas 1.x (Unofficial name) Year of Release: 1996 Features (from the Roland Help File): Number of parts: 16 …

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