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Sound Pixel Project

Sound Pixel Project. NSF REU JULY 27 th , 2012. Building a Frame. Design Concept Transportable, study, and easily constructed Material: 80/20 Lightweight aluminum alloy composite T-slot framing Speakers Original Concept: independent sound emitters In Use: six sets of stereo speakers

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Sound Pixel Project

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  1. Sound Pixel Project NSF REU JULY 27th, 2012

  2. Building a Frame • Design Concept • Transportable, study, and easily constructed • Material: 80/20 • Lightweight aluminum alloy composite • T-slot framing • Speakers • Original Concept: independent sound emitters • In Use: six sets of stereo speakers • Speaker Mounting • Cable wiring and cable ties

  3. The Speaker Grid

  4. Music Mixing • Concept • Enable multiple audio files to mix and create a unified track • Default Track • Signed 16-bit at a 44100 Hz • Clipping Prevention • Determines max sample value of the mixed track • If the max surpasses the threshold the rest of the track is divided by the ratio of (max/threshold)

  5. Networking • Concept • A client and server capable of streaming audio to individual speakers • Streaming • Each client manages a single speaker and is fed a raw audio stream • Audio Playback • ALSA captures data sent to virtual devices and packages it for soundcard playback

  6. Conclusion • The Sound Pixel Project is fully functioning • All audio tracks must be pre-loaded into the server then sent to be played • Future Projects: • Real-time mixing • Application interfaces to manage tracks • Expanding the speaker grid • Track motion with a Kinect

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