I got a question the other day about how it is possible to record a sonifyed video file based on my sonification module for Jamoma for Max. I wrote about my first experiments with the sonifyer module here, and also published a paper at this year’s ACHI conference about the technique. It is quite straightforward to record a video file with the original video + audio using the jit.vcr object in Max....
Yesterday I was teaching a workshop on laptop orchestra performance for the students in Live electronics at the Norwegian Academy of Music. I usually start such workshops by playing the piece Clix by Ge Wang (see e.g. here for a performance of it). It is a fun piece to play, and it is nice to show the students something else than Max patches. Unfortunately, while setting up for the workshop I had problems getting Chuck to work on my new laptop....
A couple of days ago I presented the paper “Motion-sound Interaction Using Sonification based on Motiongrams” at the ACHI 2012 conference in Valencia, Spain. The paper is actually based on a Jamoma module that I developed more than a year ago, but due to other activities it took a while before I managed to write it up as a paper. See below for the full paper and video examples. The Paper Download paper (PDF 2MB) Abstract: The paper presents a method for sonification of human body motion based on motiongrams....
I am using the Phidgets eletronics kits when teaching sound programming, and have now made two small videos demonstrating some basic principles. First, there is a getting started with Phidgets in Max video in Norwegian: And I have also made a video demonstrating the Phidgets2MIDI application that I developed earlier this year: I am planning to make some videos showing some more musically interesting use of the electronics and software.
I have made a new Jamoma module for sonification of motiongrams called jmod.sonifyer~. From a live video input, the program generates a motion image which is again transformed into a motiongram. This is then used as the source of the sound synthesis, and “read” as a spectrogram. The result is a sonification of the original motion, plus the visualisation in the motiongram. See the demonstration video below: The module is available from the Jamoma source repository, and will probably make it into an official release at some point....
I am teaching a course in sound theory this semester, and therefore thought it was time to update a little program I developed several years ago, called SoundAnalysis. While there are many excellent sound analysis programs out there (SonicVisualiser, Praat, etc.), they all work on pre-recorded sound material. That is certainly the best approach to sound analysis, but it is not ideal in a pedagogical setting where you want to explain things in realtime....
I am trying to debug a Max patch that does video analysis. For some reason many of the exported text files containing the analysis results contain exactly 4314 lines. This is an odd number for a computer program to dislike, so I am currently going through the patch to figure out what is wrong. The first thing I thought about was the text object, which is used for storing the data and write to a text file....
Kristian Nymoen have updated the Jamoma modules for recording and playing back GDIF data in Max 5. The modules are based on the FTM library (beta 12, 13-15 does not work), and can be downloaded here. We have also made available three use cases in the (soon to be expanded) fourMs database: simple mouse recording, sound saber and a short piano example. See the video below for a quick demonstration of how it works:
Inspired by the work [[[Static no. 12 by Daniel Crooks that I watched at the Sydney Biennale]{.entry-content}]{.status-content}]{.status-body} a couple of weeks ago, I have added the option of scanning a single column in the jmod.motiongram% module in Jamoma. Here is a video that shows how this works in practice: About motiongrams A motiongram is a way of displaying motion (e.g. human motion) in the time-domain, somehow similar to how we are used to working with time-representations of audio (e....
In video analysis I have been working with what is often referred to as “quantity of motion” (which should not be confused with momentum, the product of mass and velocity p=mv), i.e. the sum of all active pixels in a motion image. In this sense, QoM is 0 if there is no motion, and has a positive value if there is motion in any direction. Working with various types of sensor and motion capture systems, I see the same need to know how much motion there is in the system, independent of the number of variables and dimensions in the system studied....