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chapelier fou

I never worked with clocks and Max/MSP before so pardon my newbiness inthe domain... 

but whenever I start the metro, notes are blocked. Maybe because of the "per channel" nature of Live's tracks ? i guess that MIDI clock doesn't have a channel... 

But is there a way ? I've seen this device 

https://maxforlive.com/library/device/6651/clock

I never worked with clocks and Max/MSP before so pardon my newbiness inthe domain... 
I thought this rough patch would work : 

but whenever I start the metro, notes are blocked. Maybe because of the "per channel" nature of Live's tracks ? i guess that MIDI clock doesn't have a channel... 
But is there a way ? I've seen this device https://maxforlive.com/library/device/6651/clock so it must be possible. 

I never worked with clocks and Max/MSP before so pardon my newbiness inthe domain... 
I thought this rough patch would work : 
 
but wheneve

m4l-how-to-send-midi-clock-to-a-synth-from-a-track

[rtin] is not working in a M4L context so I assume that clock messages are blocked too.
It's really  a pity that the tempo information from Live to MIDIout doesn't pass through the tracks.
You cannot (in my opinion) catch/send them.

The CLock device  uses Imp.midi and is just working for external synths.


Yep, meanwhile, I tried with imp.midiout and it works ! 

M4L : How to send MIDI clock to a synth from a Track ?

Julien Bayle

we just found something we didn't know about preset interpolation.

In my example below, if [matrixctrl] is 8x8 .. no problem.

If it is bigger (we didn't dig the exact limits), interpolation doesn't work.

Maybe it also happens with other objects.

Actually, we tested with a (BIG) multislider with 1000 ... it works fine.

Hi there,

we just found something we didn't know about preset interpolation.

In my example below, if [matrixctrl] is 8x8 .. no...

matrixctrl-and-presets-interpolation-problems

[matrixctrl] and Preset's interpolation problems

Robert Rethwisch

hey folks! i’m wondering if anyone who’s run tests on this can lay out for me what exactly the rules are for when/where receive~ objects will add a vector of delay. I’m working on a system/rig in which each “channel” is its own top level patcher window. Hence, the only way to sum or route audio is via s~ and r~. I’m running into some confusion because when sending audio between patchers, most receive~ objects will have zero latency but will be inexplicably delayed in others, even when there is no apparent feedback loop. I’d like to create a sort of automatic system for delay compensation but i can’t do that if the behavior is unpredictable. 

This is all using mc.send~ and mc.receive~ but i don’t know if that makes a difference.

hey folks! i’m wondering if anyone who’s run tests on this can lay out for me what exactly the rules are for when/where receive~ objects...

receive-mcreceive-latency

receive~ / mc.receive latency

Eric Sterling

I imagine this has been answered before, but what is the preferred way to load static data into a Data object in gen (in my case it will be some tuning values)

I imagine this has been answered before, but what is the preferred way to load static data into a Data object in gen (in my case it will be...

populating-data-objects

Populating Data Objects

Iwan Paturel

I'm using the RNBO export function and the VCV rack SDK to translate my RNBO patches into Rack modules. I'm trying to hack a little bit into the system (module.cpp, rnbo_source.cpp and others) in order to be able to control the appearance of the final module directly from the parameters or in/outlets metadata field. 

The issue is that there is no implementation of the "meta" field in the rnbo c++ export. Well, it does exist in the "description.json", but there is no solution implemented to access it easily, meaning that the field doesn't exit in the "rnbo_source.cpp", neither in the "ParameterInfo" struct in "RNBO_Types.h" : 

struct ParameterInfo
	{
		ParameterType type;
		IOType ioType = IOTypeUndefined;
		ParameterValue min = 0.;
		ParameterValue max = 1.;
		ParameterValue initialValue = 0.;
		ParameterValue exponent = 1.;
		int steps = 0; // 0 = continuous, 1 = toggle, 2+ indicates steps in the normalized representation
		bool debug = false;
		bool saveable = false;
		bool transmittable = false;
		bool initialized = false;
		bool visible = false;
		const char **enumValues = nullptr;
		const char *displayName = "";
		const char *unit = "";
		SignalIndex signalIndex = INVALID_INDEX;
	};


As these files are generated by RNBO during the export, I cannot modify them in order to have the informations needed. I don't want my first option to be to parse the .json file... Is there any way that I could get the metadata directly from the RNBO export in a way similar to the ParameterInfo struct ? 

Hi everyone, 

I'm using the RNBO export function and the VCV rack SDK to translate my RNBO patches into Rack modules. I'm trying to hack a...

getting-the-rnbo-parameters-metadata-with-a-getter-from-the-rnbosourcecpp-or-similar

Getting the RNBO parameters metadata with a getter from the rnbo_source.cpp (or similar)

berane9

I want to play the audio in a slow speed of the song. How can i do that in 

I want to play the audio in a slow speed of the song. How can i do that in mubu.play~ ? Thanks

how-to-change-the-time-point-of-trasport-object-in-mubuplay

how to change the time point of trasport object in mubu.play~

Timothy Place

Building on my previous filter design videos (see below), I use the 

 objects to make a crossover filter that is perfect for use in multi-band EQ's, compressor/limiters or sound design applications. By using these tools to create a Linkwitz-Riley filter system, join me for a 20-minute trip into examining, testing and ultimately building a filter that doesn't otherwise exist in Max.

Make a crossover filter that is perfect for use in multi-band EQ's, compressor/limiters or sound design applications. 
Get the Package used in this tutorial: https://cycling74.com/2016/09/13/crossover-filter-design-video-tutorial/

Crossover Filter Design

Building on my previous filter design videos (see below), I use the filterdesign, filterdetail and gen~ objects to make a crossover filter that is perfect for use in multi-band EQ's, compressor/limiters or sound design applications. By using these tools to create a Linkwitz-Riley filter system, join me for a 20-minute trip into examining, testing and ultimately building a filter that doesn't otherwise exist in Max.

Download the Package used in this tutorial.

Watch other filter design videos: A Tour of Filtering Tools and Demystifying Filters.

crossover-filter-design-video-tutorial

these are a great set of tutorials tim. long may they continue. (do you take requests?!).

i implemented trond's linkwitz-riley in genexpr a while back, and use it for all my multiband processing needs.

last year we released a few additions to the oscillot package including a crossover based on it. attached is a max patch version of this module from the package, in case anyone else is interested.

nowhere near as useful as the one in your tutorial as the coefficients are calculated at signal rate (!!), but maybe someone will find it interesting to rip out the genexp code and take a look. if not should at least be compatible with beap. also paired here with graham's 2-pole crossover from the gen~ examples.

This is fabulous!  Thanks for sharing @STKR!


This filter series is really awesome.  I don't understand the maths, but this series explains filters in a way that focuses on the use and outcome instead of the mathematics at work.

Maybe this is the discussion of a future tutorial, but how could I use the Linkwitz-Riley crossover to divide an audio stream into more than two parts (eg low-mid-high)?  Intuitively, it seems like I could again divide one of the streams, like the low pass stream, and divide it again into a low and high stream, resulting in a low pass, a middle bandpass and a high pass.  Will my three audio streams remain in phase?  Do I need to add delay to the high pass side to compensate for the extra filters on the low-pass side?

more than two bands... just chain the crossovers serial.


Nice article. Is there a way to easily implement other type of filters like Bessel (std and norm), Linkwitz-Riley, Elliptical and All-Pass. Chebyshev 1 and 2 are already included in filterdesign~ I see.

Your video has been incredibly useful for helping me with my studies! I am creating a crossover simulator at the moment and I wondered if you know of a way to implement a Bessel filter? Any information you have would be incredibly useful.  Many thanks.

I haven't implemented a Bessel filter for Max. Depending on your application for the filter you could generate biquad~ coefficients using Octave's besself function ( https://octave.sourceforge.io/signal/function/besself.html ).

The same is true for an elliptical filter.

If you want to have a filter than can be dynamically modified (as the filters in filterdesign are) then it will take some significant math chops. A good starting place (apart from the Octave besself code) is this: https://vibrationdata.wordpress.com/2012/11/11/bessel-lowpass-filter/

Thank you Tim for this very insightful and helpful tutorial. I tried to run the "3 - crossovers - gen~" tutorial patch for the Linkwitz-Riley crossover but I am getting the wrong frequency response as you see from the attached screenshot. The java script seems to be OK as I get the correct response in the "2 - crossovers - lr" tutorial patch  using the filterdetail object. I am running as required at 44100 Hz and have changed the  I/O and signal vector sizes to various values in Audio Status but nothing changes and the problem remains. I am puzzled at what could be causing this. Any insight would be appreciated. (Max 7.3.5, Mac OS 10.12.6). 

i am posting this question here because it is releated to a similar context:

how far away is a "regular" biquad from a butterworth (read: cascades of 2) when it comes to its main property, the absolute frequency flatness at the crossover point / rated frequency?


I updated Max 7.3.5 to 7.3.6 and the  problem I reported above went away. The spectral plot now shows the same curves as in the tutorial.  Does anyone have a clue why?

I found out that the issue with the wrong curves in the spectral plot~ I reported earlier has nothing to do with the version number of Max but rather the signal vector size. For the spectral plot in that tutorial patch to display the correct curves the signal vector size must be 256 or smaller. 

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