Forums > MaxMSP

Analyse sound files and environment (micro, camera)

April 8, 2008 | 3:25 pm

Dear Community,

I’m a student and I’m going to realize a project with Max/MSP. The idea is a "Virtual DJ" that analyses sound files from a directory. Depending to their velocity (bpm) and the average frequency of the sound signal I want to classify them into an array.
Second I want to analyse the environment in realtime. With the webcam and the microphone I want to find out the loudness and the average color value.
Everytime when a song ends, the new one should be selected considering the information about songs in the array.

I’m an newbie and don’t know much about Max/MSP. Just some working with the standard objects.I have some programming experience with Java, PHP and a little bit of C.

I would be really appreciated if one of you could help me out with some good tutorials to start with. And with ideas how to realise these analysing issues:

- How to analyse sound files from one directory? BPM and average Freq. of sound signal.
- How to analyse in real time microphone and webcam?

thank you a lot,
Michael


April 8, 2008 | 3:52 pm

For the first analysis task, you might want to look at the MEAP
software:

http://labrosa.ee.columbia.edu/meapsoft/

brad

http://music.columbia.edu/~brad

On Apr 8, 2008, at 11:25 AM, Rubini wrote:

>
> Dear Community,
>
> I’m a student and I’m going to realize a project with Max/MSP. The
> idea is a "Virtual DJ" that analyses sound files from a directory.
> Depending to their velocity (bpm) and the average frequency of the
> sound signal I want to classify them into an array.
> Second I want to analyse the environment in realtime. With the
> webcam and the microphone I want to find out the loudness and the
> average color value.
> Everytime when a song ends, the new one should be selected
> considering the information about songs in the array.
>
> I’m an newbie and don’t know much about Max/MSP. Just some working
> with the standard objects.I have some programming experience with
> Java, PHP and a little bit of C.
>
> I would be really appreciated if one of you could help me out with
> some good tutorials to start with. And with ideas how to realise
> these analysing issues:
>
> – How to analyse sound files from one directory? BPM and average
> Freq. of sound signal.
> – How to analyse in real time microphone and webcam?
>
> thank you a lot,
> Michael
>


April 8, 2008 | 3:54 pm

excellent project

i have a filemaker pro database solution that i made for this (excluding the colors)

i would be very interested in your patch
also
think about including overlaps and drops

there are several beat detectors (based on [bonk~] mostly)
and pitch detectors (based on [fiddle~] mostly)
but
they only work in real time – not on files

for the video patch
checkout benson’s recipies
http://www.cycling74.com/story/2006/2/6/114353/4118
http://www.cycling74.com/story/2006/2/14/161736/108

http://www.cycling74.com/story/2006/2/17/153427/406


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