OSC 2 Harmonics: Bug or Feature ?

nemmo · Post by **nemmo** » Thu Mar 15, 2007 7:04 am

The idea is to find out if the extra harmonics in OSC 2 are really a problem or are part of the "radias signature sound".

What do you think ?

slammah2012 · Post by **slammah2012** » Fri Mar 16, 2007 6:56 am

Its a bug that shouldn't affect to many presets if corrected......
the odds that one would have "sine selected in osc 2" without filters and resonance " the quest for real sine" and be upset of a correction I think are very low.....

nemmo · Post by **nemmo** » Sat Mar 17, 2007 6:15 pm

LOL, the results are 5 for bug and 5 for feature. Curious thing.

slammah2012 · Post by **slammah2012** » Sun Mar 18, 2007 6:04 pm

As I said .... the future true capabilities of the machine are at the mercy of its past presetsand patches, Lets get korg to add this harmoniked sine to the pcm list and get a true sine where they say there is to be one...lol

gdh · Post by **gdh** » Sun Mar 18, 2007 9:20 pm

fix the damn thing

Unknown Sound · Post by **Unknown Sound** » Mon Mar 19, 2007 12:40 am

The poll doesn't mean anything because it's can be both a bug and add to the RADIAS character.

Anyway, I sent a bug report to the local Korg distributor asking that it be put through official Korg channels.

I really don't know what sort of response I will get (if any) but at least for my part I have done what I can.

-US.

kvnvk · Post by **kvnvk** » Mon Mar 19, 2007 1:15 am

what would be the possibility of Korg issuing this as a seperate "stand-alone" update if it is determined by them to be a bug? basically so those who are concerened about it affecting the patches they've created can choose whether or not they want to install the "fix"?

nemmo · Post by **nemmo** » Mon Mar 19, 2007 7:37 am

Yup, that sounds like a good idea.

waytho · Post by **waytho** » Tue Mar 20, 2007 5:48 am

because it seems like an obvious oversight by QA at KORG.
Love my Radias, but if I was getting that deep into pure programming - I would care. I like the idea of optional update. . .

waytho

radiasofdoom · Post by **radiasofdoom** » Tue Mar 20, 2007 12:32 pm

It's an annoying bug. I was trying to use the Radias to explain to a synth newbie exactly how the whole thing worked and having the second VCO's sine wave broken didn't help one little bit. If I want it to sound different, I'll do that myself thankyou.

jerrythek · Post by **jerrythek** » Sat Mar 24, 2007 5:32 pm

I checked into this with the developers and this is not a bug, or to be more correct, it is not unintentional. It has to do with the amount of DSP power allocated to the second oscillator, so it cannot be easily changed. That would require reallocating the DSP resources of the whole synth engine to free up some instructions to add to the 2nd osc. So it will not be changed.

Don't shoot the messenger - I'm just reporting what I learned to help answer your inquiries.

Regards,

Jerry

slammah2012 · Post by **slammah2012** » Sat Mar 24, 2007 7:49 pm

Hi Jerry,
Thanks for your response....I am understanding from what you are saying that no corrections to the oscillator / tone generators can be updated due to lack of headroom in DSP resources....

That would require reallocating the DSP resources of the whole synth engine to free up some instructions to add to the 2nd osc

Does that mean there would be no way to allow a (x10) to pitch down the secondary oscillator into <sub>oscillator frequencies which would benefit the ring modulator section???...like on a CS80....where the frequency range of the RM modulator goes from 1 Hz to 2KHz...???

Would this also mean there would be no way to acces a secondary user"pcm" bank on OSC 1 via USB memory sticks, and , does the timbre memory allocation top out at 16x16x4 (A1-P16..4 timbres) or could there be expansion to allow for patch-sets or timbres via USB memory???

Is the modulation section hindered by the DSP s lack of resources???

It would be nice to have lfo speed as a destination to envelopes or aftertouch........

By the Way......
"Thanks for your great messenger service".

Unknown Sound · Post by **Unknown Sound** » Sat Mar 24, 2007 8:19 pm

jerrythek wrote:I checked into this with the developers and this is not a bug, or to be more correct, it is not unintentional. It has to do with the amount of DSP power allocated to the second oscillator, so it cannot be easily changed. That would require reallocating the DSP resources of the whole synth engine to free up some instructions to add to the 2nd osc. So it will not be changed.

Don't shoot the messenger - I'm just reporting what I learned to help answer your inquiries.

Regards,

Jerry

Thank you Jerry. At least I'm happy there has been an 'official' response.

So it appears the resource allocation within the RADIAS is reasonably fixed with only certain functions 'stealing' CPU time when enabled, in essence a deterministic allocation model.

Oh well, at least the RADIAS doesn't suffer the same problems the Virus TI does with voice dropouts and spurious pop & clicks when resources are low.--> '...80 voices under average conditions...'...yeah right! Very non-deterministic for a lot of TI owners.

A solid SINE for OSC2 would have been nice for the RADIAS but I'll live with it. hmmmm RADIAS Plus?? RADIAS Extreme?? I wonder if the EXB-RADIAS board for the M3 will have the same limitation...time will tell....oh God I'm rambling now, time to go.

Thanks again,

-US.

jerrythek · Post by **jerrythek** » Sun Mar 25, 2007 7:56 pm

Hi slammah:

Where is the USB master port on the RADIAS to support USB media devices? That is called a USB A port and the RADIAS doesn't have one... the MIDI transmission port is a USB B port.

So... the answer to those USB-related questions would be no.

Adding more modulation destinations etc. is cool, and I have seen others request a variety of programming enhancements like that. I'm not really sure of the answer to that, and as always, I can't give definitive comments about these types of things. But I do make sure the developers see/read these types of threads. We always learn about your wants and needs from them.

Thanks,

Jerry

slammah2012 wrote:Hi Jerry,
Thanks for your response....I am understanding from what you are saying that no corrections to the oscillator / tone generators can be updated due to lack of headroom in DSP resources....
That would require reallocating the DSP resources of the whole synth engine to free up some instructions to add to the 2nd osc
Does that mean there would be no way to allow a (x10) to pitch down the secondary oscillator into <sub>oscillator frequencies which would benefit the ring modulator section???...like on a CS80....where the frequency range of the RM modulator goes from 1 Hz to 2KHz...???

Would this also mean there would be no way to acces a secondary user"pcm" bank on OSC 1 via USB memory sticks, and , does the timbre memory allocation top out at 16x16x4 (A1-P16..4 timbres) or could there be expansion to allow for patch-sets or timbres via USB memory???

Is the modulation section hindered by the DSP s lack of resources???

It would be nice to have lfo speed as a destination to envelopes or aftertouch........

By the Way......
"Thanks for your great messenger service".

gdh · Post by **gdh** » Thu Mar 29, 2007 1:11 pm

I hope that with the M3 this is fixed.

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OSC 2 Harmonics: Bug or Feature ?

Extra harmonics: Bug or Feature ?

OSC 2 Harmonics: Bug or Feature ?

I Voted "bug"