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Jonatan Krogh

Im using Splat~ with @overdubmode accum. If i record at standard speed it all works well, but if i record at lower speed so the interpolation kicks in, then the overdubbed sound gets louder. The slower it records, the louder and glitchier it gets. 

Also, Im using the trick from the iPoke documentation of connecting a signal from the patcher playing back the sound to the poker, to force it to play before recording. Seems a bit dodgy though so would love to know if there's a better solution.

jkPoker_test.maxpat

Im using Splat~ with @overdubmode accum. If i record at standard speed it all works well, but if i record at lower speed so the interpolation kicks in, then the overdubbed sound gets louder. The slower it records, the louder and glitchier it gets. 

Also, Im using the trick from the iPoke documentation of connecting a signal from the patcher playing back the sound to the poker, to force it to play before recording. Seems a bit dodgy though so would love to know if there's a better solution.

Im using Splat~ with @overdubmode accum. 

splat-overdub-gets-louder-when-interpolating

I think this may be expected behaviour?  If you slow the write speed down, then you are effectively pouring more samples into an equivalent space of the buffer.  Imagine you are icing a cake: the slower you move the icing tip, the thicker the icing will be, because more of it accumulates on top of each other. 

If it helps: The splat~ op in gen basically just spreads the input sample value between the two nearest sample slots in a buffer, with a linear mix between them, and the overdubmode=accum means that it adds to the existing data in the buffer.  

If you wanted to counteract this and balance the amount regardless of the speed, you'd need to attenuate the signal before it goes into splat~, with some factor that inversely proportional on the write speed.  

Thats what i thought was going on behind the scenes too, but it doesn't seem like the most intuitive behaviour or something I'd do on purpose, more like an oversight. 

I implemented this in the example, and it does indeed seem to work as expected when overdubbing. If this is the intended functionality, why is it only happening when overdubbing, and not when replacing? If overdub is zero, it's recording at normal volume, so to get the "expected" behaviour i need to interpolate between 1 and the speed-compensated gain. (second example).

Another confusing behaviour is that if record with overdub 0.  (replacing) at low speed, then jump to a higher speed, the old audio stays. Again the behind the scenes explanation makes sense, it's just skipping samples, but since it's supposed to be "interpolated overdubbing", this is not what i would expect. 

Splat~ Overdub gets louder when interpolating. 

UnUnUnium

Sometimes my RNBO export bar goes blank - I can't seem to figure out any sort of reproducible pattern to it.

The problem seems to fix itself when I restart Max - and the same patch that wasn't showing an export bar before starts to work.

Sometimes my RNBO export bar goes blank - I can't seem to figure out any sort of reproducible pattern to it.

The problem seems to fix...

rnbo-export-bar-inexplicably-blank

RNBO export bar inexplicably blank

Todd Krupa

Hi, I wanted to point out a potential issue exporting RNBO patchers containing Granulator~.   During the build process (Xcode) I get:

Non-void function does not return a value in all control paths

It's a factory function using a classname if that helps, and other factory functions not containing granulator seem to be fine.   The function in question involves @interp and the conditionals for specifying a mode.  By adding a default to the end (either 0 or one of the conditional interp functions), the issue can be resolved and the code builds. 

Here is the code with a manual patch at the very end.

template <typename T> inline SampleValue bufferreadsample(
    T& buffer,
    const SampleValue sampleIndex,
    const Index channel,
    const SampleIndex start,
    const SampleIndex end,
    const int interp
) {
    if (sampleIndex < 0.0) {
        return 0.0;
    }

    SampleIndex truncIndex = (SampleIndex)(trunc(sampleIndex));

    if (interp == 5) {
        return buffer->getSample(channel, truncIndex);
    } else {
        number frac = sampleIndex - truncIndex;
        number wrap = end - 1;

        if (interp == 0) {
            SampleIndex index1 = (SampleIndex)(truncIndex);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            return this->linearinterp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2)
            );
        } else if (interp == 1) {
            SampleIndex index1 = (SampleIndex)(truncIndex - 1);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            SampleIndex index3 = (SampleIndex)(index2 + 1);

            if (index3 > wrap)
                index3 = start;

            SampleIndex index4 = (SampleIndex)(index3 + 1);

            if (index4 > wrap)
                index4 = start;

            return this->cubicinterp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2),
                buffer->getSample(channel, index3),
                buffer->getSample(channel, index4)
            );
        } else if (interp == 6) {
            SampleIndex index1 = (SampleIndex)(truncIndex - 1);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            SampleIndex index3 = (SampleIndex)(index2 + 1);

            if (index3 > wrap)
                index3 = start;

            SampleIndex index4 = (SampleIndex)(index3 + 1);

            if (index4 > wrap)
                index4 = start;

            return this->fastcubicinterp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2),
                buffer->getSample(channel, index3),
                buffer->getSample(channel, index4)
            );
        } else if (interp == 2) {
            SampleIndex index1 = (SampleIndex)(truncIndex - 1);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            SampleIndex index3 = (SampleIndex)(index2 + 1);

            if (index3 > wrap)
                index3 = start;

            SampleIndex index4 = (SampleIndex)(index3 + 1);

            if (index4 > wrap)
                index4 = start;

            return this->splineinterp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2),
                buffer->getSample(channel, index3),
                buffer->getSample(channel, index4)
            );
        } else if (interp == 7) {
            SampleIndex index1 = (SampleIndex)(truncIndex - 2);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            SampleIndex index3 = (SampleIndex)(index2 + 1);

            if (index3 > wrap)
                index3 = start;

            SampleIndex index4 = (SampleIndex)(index3 + 1);

            if (index4 > wrap)
                index4 = start;

            SampleIndex index5 = (SampleIndex)(index4 + 1);

            if (index5 > wrap)
                index5 = start;

            SampleIndex index6 = (SampleIndex)(index5 + 1);

            if (index6 > wrap)
                index6 = start;

            return this->spline6interp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2),
                buffer->getSample(channel, index3),
                buffer->getSample(channel, index4),
                buffer->getSample(channel, index5),
                buffer->getSample(channel, index6)
            );
        } else if (interp == 3) {
            SampleIndex index1 = (SampleIndex)(truncIndex);

            if (index1 < 0)
                index1 = wrap;

            SampleIndex index2 = (SampleIndex)(index1 + 1);

            if (index2 > wrap)
                index2 = start;

            return this->cosineinterp(
                frac,
                buffer->getSample(channel, index1),
                buffer->getSample(channel, index2)
            );
        }
    }

    // Added a default return value if none of the above conditions are met.  Also works with one of the expressions from conditions
    return 0.0;
}


Is there anything in the patcher I could do to prevent this?  I've tried explicitly setting @interp on the granulator.

Hi, I wanted to point out a potential issue exporting RNBO patchers containing Granulator~.   During the build process (Xcode) I...

granulator-example-patch-compilation-errors-in-xcode

Granulator~ example patch compilation errors in Xcode

Joachim Budweiser

can someone confirm this? if i build my test-patch (doing nothing except for an fft and its inverse) as recommended in the rnbo-fft-tutorial 

https://rnbo.cycling74.com/learn/using-the-fft

, the sound gets chopped/ring-moddy as if the windowing wasn't in phase. if i export to vst3, it has the same effect. is this a known bug or a windows-issue (win10)?

hi there

can someone confirm this? if i build my test-patch (doing nothing except for an fft and its inverse) as recommended in the...

fft-hann-window-not-working-properly

fft hann window not working properly

Oni Shogun

for some reason, RNBO is not available on my system since upgrading to Max 9.

The objects cannot be found, no autocompletion suggestions, the package manager offers 

Would be very cool to use the RNBO Trialversion as long as I'm able ;)

RNBO not available even after fresh install

rnbo-not-available-even-after-fresh-install

Peter Nyboer

https://rnbo.cycling74.com/explore/raspberry-pi-oscquery-example

I know I'm able to communicate with my instance on the Raspberry Pi: I can send a parameter to the synth at rnboplay.local:1234 with something like:

and see the slider change in the web interface, and hear the result.

However, when I try to add a listener with 

I would expect parameter data coming out of [udpreceive 8003] when I make changes in the web interface on the instance or when I send a parameter over osc as above.  

Additionally, using the above "add" commands, I'd expect changes in the JSON when I load the URL rnboplay.local:5678/rnbo/listeners/entries but it remains the same before I added any entries.  Similarly, the osc command "/rnbo/listeners/entries" doesn't return any data. 

Any help would be appreciated. It just seems like the listeners aren't working.

raspberry pi oscquery listeners with udpreceive

raspberry-pi-oscquery-listeners-with-udpreceive

TremensS

I just upgraded to Max 9, so this is a fresh install (9.0.0) of Max and RNBO (1.3.3).

This is the first time I'm trying RNBO so I cannot say if the problem is related to this specific release... but I can barely do anything with it so far:

- I'm working on Windows 11, with a RME Fireface UC. OS and drivers are up-to-date.

- by default I'm using the RME and ASIO drivers, but the problem is the same if I try other drivers (MME...), so I don't think it is hardware or driver related

- from a fresh patch, I just add a RNBO~ object

- in the RNBO~ subpatch, as soon as I put 

 MIDI input object, compilation freezes and Max crashes within a couple of seconds. 

i.e. I can put a metro, midiout, noteout, param... no problem. 

But as soon as I put a midiin or notein, compilation will fail and Max will crash.

- the problem occurs both with auto-compile on and off (if off: crash will happen a couple of second after I trigger compilation)

- if I place my objects, save the RNBO patch before compiling, quit Max and reload my patch, it will crash a few seconds after I place the object (and, I guess, attempts to compile in the background)

I am probably not the only one trying to use MIDI in RNBO 😅

Hello,

I just upgraded to Max 9, so this is a fresh install (9.0.0) of Max and RNBO (1.3.3).
This is the first time I'm trying RNBO so I...

rnbo-crashing-as-soon-as-compiling-any-midi-input-object

RNBO crashing as soon as compiling any MIDI input object

Griffin Barbieri

Howdy all. I just got into RNBO this week and I've been having an issue wherein patches I render as VSTs do not produce audio. This screenshot of my Ableton session is my best attempt at showing what's wrong without an audio example. In Ableton, after every plugin in the chain, there's a measure of volume (the green monitors), and as you can hopefully see my RNBO plugin doesn't get any output. There is no sound, no levels, nothing.

Here's what my patch looks like, I've tried making many other patches but below is my desperate attempt to try to get audio working.

Like ?????? what is going wrong here????? Some things I'm considering:

Howdy all. I just got into RNBO this week and I've been having an issue wherein patches I render as VSTs do not produce audio. This...

RNBO Forum