Browsing by Author "Manzara, Leonard"
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- ItemOpen AccessActive Noise Control Simulations using the Transmission Line Matrix Method(2016) Gorobets, Militina; Smith, Michael; Nielsen, Jorgen; Manzara, LeonardActive noise control (ANC) focuses on removing unwanted sounds or vibrations in an environment with the use of sensors, actuators and a mathematical algorithm. New algorithms are typically evaluated in simulation prior to implementation. Despite the popularity of this research field, simulations tools are limited, and most verifications are performed using scripts that often simplify the propagation environment. This can lead to a strong mismatch between simulation and measurement results. The transmission line matrix method (TLM2) is a wave propagation algorithm that has previously found success in indoor wireless planning due to its ability to easily model complex environments. This thesis proposes an ANC simulator using the TLM2. Extensive capabilities of the simulator are demonstrated with generic wave propagation scenarios and two ANC algorithms. The simulator is implemented on the GPU to improve execution speed. The simulator is interfaced with MATLAB to enhance testability of new algorithms.
- ItemOpen AccessMUSE: a Music Sandbox Environment for Novices(2017) Popa, Iulius; Boyd, Jeffrey; Eagle, David; Boyd, Jeffrey; Eagle, David; Radford, Laurie; Manzara, LeonardCollaborative musical interfaces for novices allow people with limited to no musical education access to a “walk-up and play” group musical experience. However, research shows that the ease-of-use of an interface tends to be inversely proportional with its creative affordances. My research aims at increasing the level of creative controls in interfaces for novices without compromising the “walk-up and play” characteristic or negatively affecting the perceived quality of the musical output. This thesis proposes a new design paradigm – a “game of music” and presents the design, implementation, and evaluation of MUSE – a real time, collaborative musical interface for novices. Participants in user studies of MUSE found learning and using the interface easy, described the music as pleasant, and reported having creative control over the music output. Further research could explore this new paradigm and its potential to maximize creative affordances when designing new collaborative musical interactions for novices.
- ItemOpen AccessThrough a Window: A Networked Music Composition for Four to Six Instruments and Electronics(2018-09-11) Bosse, Naithan; Eagle, David; Radford, Laurie; Bell, Allan; Fields, Kenneth; Chafe, Chris; Manzara, LeonardThrough a Window is a three movement networked composition for four to six variable instruments and electronics. In this work, musicians are distributed between three performance sites and connected by sending multi-channel audio streams across a high-bandwidth network. The composition explores how the networked setting together with live sound-processing, soundfile playback, amplification, and spatialization creates a unique sonic performance environment. By applying sound-processing differently at each location, the composition creates dynamic configurations in which elements of the work such as harmony and orchestration are perceived differently at each location. As the physical distance between performance sites increases, the time delay required to send audio between the sites also increases. This poses a significant challenge for music performance since tight synchronization becomes impossible. In Through a Window I employ several practical strategies to accommodate ensemble performance in the presence of network latency such as composing audible cues within the music, adopting proportional notation, and using networked stopwatches. Formally, the composition presents a variety of musical processes based upon evolutionary algorithms, recursive algorithms, and swarm algorithms. These processes occupy multiple sections throughout the composition and contribute to aspects of the composition such as the harmony and melodic contours. As the composition unfolds, these algorithmic materials recur in new configurations and contribute to create an interlocking macrostructure in which the musical tension increases and recedes in a pattern inspired by ocean waves.
- ItemOpen AccessThe Tube Resonance Model Speech Synthesizer(2009) Manzara, Leonard