Monday, January 19, 2009


2012-tweetup by visda

2012 Tweetup is a pluderphonics tape piece made of the sonification of Twitter data. Data of the Twitter followers of the people or events that have been trendy in 2012 demonstrates the development and popularity of the events on social media. The sonic interpretation of this development is created by mapping the twitter data to the parameters that modulate(using granular synthesis) the audio recordings related to each specific trend. Using simple granulation techniques on the data, a variety of interesting timbres and textures are obtained. Gap size, grain size, amplitude, and the random spread of the grains are controlled by the data. Where the number of followers are higher, the samples are played back as recognizable parts of the recorded tracks.
The trends are chronologically ordered in the piece as the twitter data. The piece includes the following tweets:
- Tweets from Mars: NASA’s Jet Propulsion Laboratory live-tweeted as the Mars rover, Curiosity, made its descent onto the Red Planet. The world received Twitter updates directly from the shuttle’s command center. @MarsCuriosity has more than 1.2 million followers.
- Farewell to Whitney Houston: the day the R&B superstar died, tweets about her death peaked at 73,3662 per minute. Nearly 2 million tweets were sent during her televised funeral on Feb. 19.
- The U.S. presidential elections: The first presidential debate between President Obama and Republican presidential candidate Mitt Romney generated 10 million tweets.
- Superstorm Sandy from space: The International Space Station (ISS) captured live images of the storm as it tore its way up the East Coast. The astronauts tweeted live images to the world.
- When Felix Baumgartner made his record-breaking skydive from space, people all over the world took to Twitter to witness the event unfold.
- President Obama’s simple election night message: “Four more years.”

junkman is an installation in the listening room. this room is very special to me because i can take advantage of 16 speakers. speakers are in octagonal setup 92 inches apart in three vertical spaces around the room, above the room and under the room. i had a a mixed media piece for 16 channels audio + text-based visuals + paper junkmail covering the hallway. my installation was called "junkmail" as a reaction to the fact that "it takes more than 100 million trees to produce the total volume of junk mail that arrives in american mailboxes each year.” this fact and a lot more on this topic can be found on forest ethics.
shootingstars by visda

this piece is composed for an open air concert 'Transitions:' an evening of computer music outdoors by CCRMA in the Knoll courtyard. We have had an 8 channel surround system and projections, and space for the audience to lay out on their blankets.

    this piece is written for stanford laptop orchestra (slork) with two types of instruments and live vocals. one is smashing instrument that works by smashing on the laptop which uses the sensors of macbook as input to manipulate the drum sounds. the second one is a granulator that can change the length of the grains, pitch and their randomness which is used on vocal sounds. the piece is based on a poem by rumi (a persian sufi poet.) details about the instruments could be found on slork's website, a video of the performance is available on youtube.
    chuckucello by visda

    this is an electroacoustic piece composed for cello and laptop. the code for laptop is written in chuck and performed in real time. thanks to "broer oatis" for performing the cello part. this recording of the piece is from an IPL concert in spring 2009.
    this piece is originally written for 8 channels and performed at ccrma stage where 8 channels were available. here is a stereo version of it. the fire sounds are originally fire and the sound of burning, the rest is extracted from kurdish music.
    for this assignment we were supposed to create a live generative music system; i built three types of instruments. one has a drones sound, the second one sounds like particles with very sharp sound created by random numbers in a specific scale. another one is rendering drum buffers. the challenge in this project was to make my instruments work with computer's keyboard. for this S.M.E.L.T website has the best examples for chuck. here is my chuck code.
    this week in ge's class (compositional algorithms) we explored different filters and timbre escapes using fm synthesis. for our assignment we had to make a music of changes, just like john cage.
    in my music of changes, the sound are somewhat random, but not so much to interrupt the flow of the piece. it starts with drones sound made by fm synthesis, followed by quarks sounds that i randomly generate and add a rhythmic features to it using shakers from chuck. for related chuck files, check out the website.
    this composition is generated by computer generated sounds welcoming people to ccrma in different languages. this piece is originally in 16 channels and is presented in ccrma's listening room. the goal was to pan voices from different parts of the world so that the listening room works as a simulation of the surrounding world.

    this sound is composed by using some real sounds of caltrain from san francisco to palo alto and some ambient sounds in both places. the sounds are recorded by homebrew microphone then synthesized by chuck files partly inspired by steve reich's piano phase.

    this composition is generated by two chuck files, one generating a rhythmic and the other one an arythmic sound. the combination is supposed to give the listener a spacey sound space.

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