Chorus Filter Improvements

I know Taktik and everyone is busy at work with the amazing new release and bravo for that…I am also aware I have been MIA 4 a while and my first post is a complaint/ desire for improvement, however, I have just realised that a feature I have been looking 4 is in one of the Renoise Native DSPS and not its sister DSP!!

I will explain…take the Flanger DSP, run a signal thru it and switch the built in filter to HP…sweep up to 5000hz or so and you will hear the low end remains dry as it should…you will notice this more if your test signal is mono. This is ideal as it gives complete control over what parts of the signal is affected by the er…effect.

Take its sister DSP Chorus(which is a flanger minus the addition of post modulated signal, its younger sister if you will), turn the wet to 100 percent and do the same experiment as above…the result being that the low end dissappears completely! Turn the filter all the way up and the sound disappears. This is in my opinion renders the addition of the built in filter useless as we already have filters for frequency removal purposes.

My idea: Eliminate the dry/wet function as it doesn’t offer that much control…or leave it as many users might still want this function.
DO however, implement the same filter behaivor as the Flanger DSP…I have not found vsts with this kind of built in filter and this surely make the Renoise Chorus a top notch, ultra-versatile effect.

What are your thoughts guys? maybe now is not the time, however, do you think this would be difficult to implement…I nothing of coding or the dedication it requires, however, my hunch is that this one the easier requests…could be wrong though.
Hope all are well,

Post an example .XRNS please :)

Brilliant idea as always Dblue!!

This is a bit tricky, due to the fact that Flanger and Chorus behave in slightly different ways by design. In the case of Chorus, you are not really meant to crank it up to 100%, because the chorus effect itself comes from mixing the dry (unmodulated) and wet (modulated) signals together. A setting of 50% in that case means half dry + half wet, and it’s the combination of those two signals that actually produces the chorus. The filters in both effects only really operate on the wet portion of the signal, so when you set 100% on the chorus then you only get the filtered wet signal. The flanger simply doesn’t function in quite the same way. Kinda tricky to suggest what to do here without changing the fundamental behaviour of the effects. hmm.

Ok, gotcha…point taken.

My point is however, the chorus filter does indeed operate on the wet portion, hence why it disappears when fully high passed on 100% wet.

However, as you have heard in the example, the flanger filter behaves differently. It determines what frequency range of the signal is affected by the flanger.
This is why when the high pass filter is at the top of the sweep, the signal sounds 90% dry +/- (not completely as the filter goes only to 13khz +/- thus leaving just the very highest bits of signal affected)
Obviously I could be wrong, however, I have done all sorts to prove my theory and I believe I am correct…listen again and/or do other tests…for ex…you could use a kick drum, sweep the flanger HP 2pole(which seems to have the steepest cutoff) to 2khz or whatever and the phase fluctuations and stereo in the lower end greatly decrease, almost nil…sweep it back down and the spreading of stereo and flanging effects thru the lower parts of the signal are evident.

Edit: here is the example! :)

Edit edit: I used the HP Moog in this ex(by accident), however, the demonstrantion is still clear as you can hear the stereo spread and flange spread to the low end as the cutoff sweeps down!

I have thought long and hard about what you said regarding the different behaivours of both effects before I made another reply.
The behaivors of the effects themselves are indeed different, however, don’t you think the chorus dsp would be more versatile if you could use could apply the modulated delayed signal to certain parts of the frequency spectrum only?

Interested to hear your thoughts and hope you are well…thx for your ring and filter modules, sure I will get plenty of use out of them…haven’t tried them yet though!

ps… I am aware I can put the chorus on a send and do it that way, however, its much easier doing frequency specific processing with the flangee dsp…while were at it, it would be gr8 if the phaser could do this as well!!! :w00t: