I Am Sitting in a Room
The piece features Lucier recording himself narrating a text, and then playing the tape recording back into the room, re-recording it. The new recording is then played back and re-recorded, and this process is repeated. Since all rooms have characteristic resonance or formant frequencies (e.g. different between a large hall and a small room), the effect is that certain frequencies are emphasized as they resonate in the room, until eventually the words become unintelligible, replaced by the pure resonant harmonies and tones of the room itself.
Lucier was originally inspired to create I am sitting in a room after a colleague mentioned attending a lecture at MIT in which Amar Bose described how he tested characteristics of the loudspeakers he was developing by feeding back audio into them that they had produced in the first place and was picked up via microphones.
Recordings and Performances
A second, higher fidelity recording of I am sitting in a room lasting over 45 minutes was released in 1981.
Lucier specified that a performance need not use his text, and that the performance may be recorded in any room.
The text spoken by Lucier describes the process of the work, concluding with a reference to his own stuttering:
I am sitting in a room different from the one you are in now. I am recording the sound of my speaking voice and I am going to play it back into the room again and again until the resonant frequencies of the room reinforce themselves so that any semblance of my speech, with perhaps the exception of rhythm, is destroyed. What you will hear, then, are the natural resonant frequencies of the room articulated by speech. I regard this activity not so much as a demonstration of a physical fact, but more as a way to smooth out any irregularities my speech might have.
In its repetition and limited means, I am sitting in a room ranks with the finest achievements of Minimal tape music. Furthermore, in its ambient conversion of speech modules into drone frequencies, it unites the two principal structural components of Minimal music in general.— Strickland (2000), 
In popular culture
In 2010, a YouTube user created an homage to I am sitting in a room entitled "VIDEO ROOM 1000", in which he uploaded a video of himself speaking text similar to Lucier's original to YouTube, then manually downloaded and re-uploaded it 1,000 times in sequence over the course of a year, in order to demonstrate the resulting digital artifacting of audio and video analogously to Lucier's original demonstration of analog artifacting of audio.
- Strickland, Edward (2000). Minimalism--Origins, p.281. ISBN 978-0-253-21388-4. "After speaking/stammering his statement, Lucier himself performs no more."
- Arts at MIT (2014-11-04). "Alvin Lucier on 'I am sitting in a room' - YouTube". Retrieved 2016-09-22.
- Lucier, Alvin. I am sitting in a room. Lovely Music, Ltd., 1990. CD.
- "DRAM: Notes for "Alvin Lucier: I am sitting in a room"". Dramonline.org. Retrieved 2010-03-02.
- Andrea Miller-Keller (15 January 2012). Alvin Lucier: A Celebration. Wesleyan University Press. pp. 43–. ISBN 978-0-8195-7280-6.
- "Amazon.com: I am sitting in a room: Alvin Lucier: Music". Retrieved 2016-03-18.
- "Seeing/Sounding/Sensing - Arts at MIT". Retrieved 2016-09-22.
- Strickland (2000), p.199.
- "VIDEO ROOM 1000 COMPLETE MIX -- All 1000 videos seen in sequential order! - YouTube". 2010-06-09. Retrieved 2016-03-18.
- "Ontologist: Music, Video, and Meaning | VIDEO ROOM 1000 FAQ". 2010-06-02. Retrieved 2016-03-18.