weird sound / pitch up on some patches

[Multimode27]

hello

i have now the second TI (first desktop - now polar). both have the following problem:

the most patches i can play without problems (midi+audio - no usb). but on some patches i get weird "pitchup" / soundchanging.

perhaps someone can try the sound:

ROM M 35 - DSCTHEQMS

when i play only this sound with max. 2 notes everything is ok. but when i play more than 2 notes on this sound or i use 1-2 notes on this patch + another patch on another midichannel i got a weird changing/pitchup sound

so far i have this on 3-4 sounds - all other play normal.
i have this problem with desktop ti and polar - so i thinks its not a hardware defekt.

sorry for bad english ;)

[ben crosland]

This has always been the case in multi mode with the Virus. Certain sounds don't seem to like being played more than monotimbrally. The solution has always been the same - record that part to audio.

At least this is a doddle now with the TI. ;)

[ten]

This happened to me a lot when I first got the TI - since turning off 'legacy usb support' in the bios though its very very rare - worth checking out if you have this option or something similar, it seems to perform alot better with just dedicated usb2 support enabled only.

ten

[Multimode27]

i use only a midi and audio cable

so this has nothing to do with usb i think :)

[grs]

This pitch up bug you mention when sending two midi chanels sounds to me like voice allocation problems. If anyone knows a lot about how a multi timbral synths holds patch data in voice you'll know a new voice is used for each key or unison layer for that one patch. If your still with me, I think that the dynamic dsp allocation is getting patch data for each new voice which is needed but sometimes missing some parameters or not refreshing them in time to play a new voice.

In another thread I mentioned the 'loss of knob control on long notes' bug. When I lost control the only way the changes made were evident was to play a new midi key - new dsp voice and the patch data up to date with the tweeks. somehow the old voice, the one that was held down had been forgotten.

The insides of the TI are still around 90% baked. When you push it you get a few 'what the..'

[Multimode27]

what i don`t understand is that i have the problem only on a few patches

even when i only press 3 or 4 keys on my polar the sound pitchup on ROM M 35 - DSCTHEQMS. so it happen without midicable too.

when it`s a voice allocation problem - why it`s happen only on few patches :(

[ben crosland]

It has only ever happened with certain kinds of patches - kick drums made with resonant filter sweeps are typical culprits.

It's just one of those things - my advice is just to bounce that part and be done with it.

[ben crosland]

Oops - sorry. I see what you mean about this patch - that is quite a strange effect! Certainly it is made worse by virtue of the fact that it's 4 voice Unison. Reducing the number of voices helps.

[ten]

Why should we have to use work arounds though, Ben.....what is the problem that these things cannot be located and fixed, especially if like you say its been happening in previous revisions of the virus.

ten

[pseudonym]

My god, someone else is having the same problem!

Hmm, I have been on support with Access about this problem, and it was suggested I send the unit back to the shop.

If others are experiencing this problem, then perhaps the virus isn't faulty at all. If this is a known problem how come Access didn't tell me about it before I boxed the damn thing and arranged for Digital Village to pick it up! :(


ten, would you mind elaborating on how you fixed this problem? Is it PC only BIOS you're talking about, or the BIOS on the Virus TI itself?

Thanks

[ben crosland]

Why should we have to use work arounds though, Ben.....what is the problem that these things cannot be located and fixed, especially if like you say its been happening in previous revisions of the virus.

ten

Well, perhaps it can be improved, I don't know. All I can say is that there have always been one or two sounds that cause trouble unless they are played solo, and thinking about it, I remember coming across sounds on the B and C that didn't behave well beyond a few voices either.

The way I see it, the Virus synth engine is a hugely complex beast, and although the possibilities are seemingly endless, there will be times where you discover the 'edge of the universe' so to speak. So, if there is a workaround, I'm happy to just use it and move on.

[ben crosland]

My god, someone else is having the same problem!

Hmm, I have been on support with Access about this problem, and it was suggested I send the unit back to the shop.

If others are experiencing this problem, then perhaps the virus isn't faulty at all.

To be fair, pseudonym, your list of problems involves a lot more than this one!

[pseudonym]

but it was this particular issue that Access couldn't reproduce and claimed was totally unnormal (their words), hence suggesting I had unique problems and should send the unit back.

The other issues, such as exploding noise, sluggish timing and being unable to use it with the EMI 2|6 sounds like it's more related to the Virus Control s/w, rather than the keyboard itself.

hmmm - I don't know what to think now... :(

[ben crosland]

The other issues, such as exploding noise, sluggish timing and being unable to use it with the EMI 2|6 sounds like it's more related to the Virus Control s/w, rather than the keyboard itself.(

What about the 'INIT patch playing across all patches'?

Did you solve this issue?

[pseudonym]

This seems to have stopped since I removed the EMI 2|6 Drivers (and USB), repaired disc permissions and reinstalled the MT4 Drivers.

I tried hooking the virus up to an iBook last night to test whether I could recreate the same problems - the patch pitch thing happened again, but Virus Control seemed fine (although very slow on the G3 iBook).

I'm going to try a complete system reinstall on the G5 with nothing but the TI and Logic pro...

[ben crosland]

What about the 'INIT patch playing across all patches'?

Did you solve this issue?

Or could this have been because you were in multi mode (no VC), had forgotten to turn Local Control = Off, and your sequencer was sending back note messages to a different channel at the same time you were playing the INIT sound on the current internal channel?

[pseudonym]

well, this is what a friend and I thought it could have been, but we had no init patch selected, and MIDI note data wasn't registering in Logic at all. It seemed as though the INIT patch was sounding independently of MIDI transmission, and when it then hung and resulted in a loud noise, we figured the thing was just buggered up internally.

I continue to find that note data isn't being sent to logic, so this is something I want to make sure isn't my setup by doing a clean reinstall this evening. I am running other esoteric applications such as SuperCollider and Max/MSP, so this may be causing problems.

[Multimode27]

My god, someone else is having the same problem!

Hmm, I have been on support with Access about this problem, and it was suggested I send the unit back to the shop.

If others are experiencing this problem, then perhaps the virus isn't faulty at all. If this is a known problem how come Access didn't tell me about it before I boxed the damn thing and arranged for Digital Village to pick it up! :(


ten, would you mind elaborating on how you fixed this problem? Is it PC only BIOS you're talking about, or the BIOS on the Virus TI itself?

Thanks

i think its not a hartware problem because i have the same problem on virus ti desktop (i send it back..) and now on the polar. they can be both faulty - but... 90% or more of the patches make no problems - so i think its the problem that ben said.

[Multimode27]

Oops - sorry. I see what you mean about this patch - that is quite a strange effect! Certainly it is made worse by virtue of the fact that it's 4 voice Unison. Reducing the number of voices helps.

yes when i use off or twin it`s much better :D

[grs]

Ben, reducing voices / bouncing. That's not the reason I went and bought a TI. Everything you say is like the anti advert for www.access-music.de

Right now there are a few extra bugs than your virus b and c. Some of them in stand alone mode, no usb. Access is going to have to look at the 'engine' and work outward, toward the edge of their universe or stop advertising their universe.