I have a max patch that I would like to transfer to pd and to run it on Raspberry pi.

The max patch is playing a video file that is manipulated ( its rate of playing and jumping frames) based on an input from an external mic). in addition to a midi voice that is playing via the internal sound engine of the computer using [makenote] object.

Is the two things above (playing and manipulating video and playing midi sounds) are possible on pd?

What should I look for?

Thanks

@KMETE Midi objects are part of Pure Data...... it has [makenote] even.
To play video you will need an external library.
The options are Gem (simple to use) and ofelia (powerful but you might need to write lua scripts to achieve what you want).
They can be downloaded and installed by going to "Help" "Find Externals" in the PD top menu.

In Gem you will need the [pix_film] object to play the video. It has a frame input.
Right-click the object and select help and you will have a working video player in Pd.
David.

@whale-av said:

In Gem you will need the [pix_film] object to play the video. It has a frame input.

Be aware though, random frame access in [pix_film] can be slow if the video is high-resolution, and if it has a large gap between keyframes. I had some luck with using ffmpeg to re-encode with smaller frame sizes and a key frame every other frame (key frames are big, so this could make a larger video file).

hjh

Thanks you both,
I hav downloaded the Gem library and place it in my search path:

but for some reason I'm getting this error:

@whale-av said:

@KMETE Midi objects are part of Pure Data...... it has [makenote] even.

In Max MSP when using Mac/pc the [makenote] object is using the internal sound engine of the computer(?) and therefore playing a sound. do you know if this will be the same with Raspberry pi 2 ?

@KMETE said:

In Max MSP when using Mac/pc the [makenote] object is using the internal sound engine of the computer(?)

No, [makenote] doesn't send any MIDI information out. It only generates data internally, inside Pd/Max.

It's [noteout] which uses some device. So this is what you would configure for the desired MIDI output.

But you'd also need to run something in Linux to play the MIDI sounds. There's no default "GS wavetable" in Linux. For that, I don't know, I always avoided default MIDI playback in Mac/PC. It might be easier to roll your own note player in Pd.

hjh

@ddw_music said:

@KMETE said:

In Max MSP when using Mac/pc the [makenote] object is using the internal sound engine of the computer(?)

It might be easier to roll your own note player in Pd.

Any example for a simple midi player in Pd?

Is there any transport and tempo object in PD same as in max?

Is there anyway to do this in pd? (8n 8nt 16n 16nt 4n 4nt)

@KMETE said:

Any example for a simple midi player in Pd?

I'm not completely sure what you mean by "simple MIDI player," but I'll assume you want some Linux software that will play General MIDI sounds.

AFAICS from a quick web search, you would probably have to install a GM soundfont, e.g. sudo apt-get install fluid-soundfont-gm, and play it using software such as FluidSynth.

On my system, it took a little hunting, but I found /usr/share/sounds/sf2/FluidR3_GM.sf2 -- fluid, check, GM, check.

You'd probably have to connect Pd MIDI out to FluidSynth MIDI in. That should do it.

Is there any transport and tempo object in PD same as in max?

"Same as Max" -- well, no. Does Pd have its own way of handling tempo? Yes.

[metro] and [delay] objects respond to "tempo" messages -- see their help files. (Though unfortunately, some other timing-related objects such as [pipe] and [makenote] do not respond to tempo messages.)

Pd doesn't have a global transport. You could make your own bars/beats counter and [send] those values around in the patch. (I'm not sure if you need a master scheduler -- if so, there's one in https://github.com/jamshark70/hjh-abs .)

This appears to handle the different subdivisions.

24-0512-time-notation.pd

hjh

@ddw_music Thanks for that example!