sound

You Did It

Thu, 2014-10-23 10:59

Working on more ways to turn perfectly good audio into messy noise.

simple little thing

Wed, 2014-10-15 21:52

hex schmidt trigger

Sun, 2014-10-05 21:58

Finally soldered together something that makes sound! Pretty good noise from this super simple circuit based on a hex schmidt trigger IC.

rpm2013 ends

Fri, 2013-03-01 20:07

February is over, and that means RPM 2013 is, too. I only managed three tracks, but at least I did spend some good time thinking about sound.

My tracks are here.

second RPM2013 track

Thu, 2013-02-21 21:12

This is track #2 for my RPM 2013 Challenge sound pieces.

It comes with a video, created at the same time.

Headphones are recommended.

Ten balls move linearly at various constant speeds, bouncing off the sides. Every triangle formed by these balls is drawn, the color determined by how equilateral the triangle is (redder = more equilateral). A sound event is generated for each triangle, twice per frame, determined by the size, location and equilaterality (?) of the triangle.

Made with Csound (audio) and processing (video).

You can see it bigger if you click through to Vimeo.

triangular composition from Matthew Conroy on Vimeo.

sound files!

Sun, 2011-06-05 20:49

Now that the quarter is over, I took a moment to put all my tracks from the 2011 RPM Challenge up on the site. They are all here. Let me know if you'd like a link to a zip file so you can download them all at once.

track six: Four Prepared Music Boxes

Fri, 2011-02-25 11:37

Track six is up at RPM Challenge 2011. This one is a recording of four prepared music boxes. I prepared them by taking out the guts, removing the plate with the plucky bits, and turning it over, so high pitched notes are now low pitched, and vice versa. The plucky bits are made so that bending in the usual direction is easier than the reverse direction, so in this track you hear the plucky bits putting up a fight. Also, I use binder clips to hold the plate to the rest of the mechanism (since the holes for the screws which normally hold it in place are offset, and do not align when the plate is inverted). The binder clips resonate in their own way with the sound from the music box, and add to the general cacophony.

track five: Pride and Enjoyment

Thu, 2011-02-24 11:21

Track five is up at RPM 2011. It is called "Pride and Enjoyment" from the sample I used as the source audio. I used Csound to generate many layers of rhythms made from sub-samples of one main sample. I threw some ring modulation in the middle to make things more crunchy.

track four: Finger Rodeo

Thu, 2011-02-17 13:17

Track four is up at RPM Challenge 2011. It is called "Finger Rodeo".

It was recorded on a dare. I should take more dares.

track three: linear transformation noise

Sun, 2011-02-13 17:03

Another track at RPM Challenge 2011.

This one uses linear transformations to manipulate the audio spectrum from one instant to the next. The result would be asymptotically static, so I added injections of coherent sound periodically (every second). Noisy, but with a nice feel, I think.