https://hdl.handle.net/2123/8175 Sun, 07 Jun 2026 22:16:20 GMT 2026-06-07T22:16:20Z https://hdl.handle.net/2123/8431 Initial Tech Review Croteau, Matthew Mon, 25 Jun 2012 00:00:00 GMT https://hdl.handle.net/2123/8431 2012-06-25T00:00:00Z https://hdl.handle.net/2123/8402 Spatial chorus effect with fractal modulation and enhanced user functions (revised version) Taylor, Robert Walter The underlying strategy of the stereo chorus effect is to emulate the combination of multiple similar voices in unison and provide an extended stereo image. Like it’s close cousin the flanger, it also uses a system whereby a signal is added to a dynamically delayed exact replica of itself. One important distinguishing factor between the two effects however lie in the way the delay line duration is modulated. For a chorus effect to attempt to recreate the realism and tiny discrepancies of a multi-layered ensemble, the modulation must be generally faster, and provides a superior result if the modulation has a random character, rather than a regular periodic character. Chorus effects in general give the user little control over both the modulation signal and the spatial aspects inherent in chorusing. This paper will discuss a new design for a ‘spatial’ chorus effect that incorporates a modulation signal derived from a fractal algorithm with resonant low-pass filter control on the modulation signal. The implementation provides extensive user controls and parameters that center around the de-correlation of left/right signal paths resulting in a spatially enhanced outcome. Fri, 15 Jun 2012 00:00:00 GMT https://hdl.handle.net/2123/8402 2012-06-15T00:00:00Z https://hdl.handle.net/2123/8300 Envelope Controlled Filtering Cuthbert, Grant Initial Review - GCuthbert Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8300 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8314 3d audio with headphones-Boey-final Song, Zhibo this report showcases a review on using digital signal process to produce 3D audio in headphones. an introduction on the development of 3D audio with headphones is initially outlined. the rationale then focuses on how the hearing system works an d how to simulate it using digital ways. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8314 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8307 Initial Techonology Review Rizo Barbosa, Jose Dario This is the document after the improvements of the a draft of the same document Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8307 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8301 Digital Delay Effects Marlan, Oliver This is an investigating into the use of the audio delay effect in digital audio processing. I have included a brief history of analog and digital delay effects, how we experience them in modern times, different types of delay effects that can be executed in the digital domain, how they differ and Matlab functions that we can use to create the effects ourselves. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8301 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8321 Spatial chorus effect with fractal modulation and enhanced user functions Taylor, Robert Walter The underlying aim of the stereo chorus effect is to emulate the combination of multiple like voices in unison and provide an extended stereo image. Like it’s close cousin the flanger, whose job is to ‘confuse the ear’s time-correlation mechanism’[1], it also uses a system whereby a signal is added to a dynamically delayed exact replica of itself. One important distinguishing factor between the two effects however lie in the way the delay line duration is modulated. For a chorus effect to attempt to recreate the realism and tiny discrepancies of a multi-layered ensemble, the modulation must be generally faster and random. Chorus effects in general give the user little control over both the modulation signal and the spatial aspects inherent in chorusing. In this paper I will be discussing a new design for a ‘spatial’ chorus effect that incorporates a modulation signal derived from a fractal algorithm with low-pass filter control, and the implementation of extensive user controls and parameters that center around the de-correlation of left/right signal paths resulting in a spatially enhanced outcome. Digital Audio Systems DESC9115, Semester 1 2012 Graduate Program in Audio and Acoustics Assignment 1: Initial technology review Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8321 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8320 Delays; Vibrato Gonzalez, Oscar Final Submission of the initial technology review Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8320 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8297 Musical Reverberation: Automated Panning of Convolution Reverb to Achieve Movement in Stereo Width Sjarif, Nathaniel This piece of work will explore the natural phenomena of Reverberation and its recreation within Digital Signal Processing. The history of refabricating acoustic spaces through analogue and mechanical means will be examined; as well as a thorough dissemination of the physical and mathematical components of reverberation. Spatial audio will also be discussed in terms of musical utilization of moving reverb to create a sense of change in stereo width. With Digital signal processing has come major advancements in synthesizing reverberation effects as well as emulating not only mechanical reverberations but also actual acoustic spaces with the application of convolution. Automation (specifically panning automation) has made it easier and much more prevalent to create stereo effects in modern music and would not be possible without the advancements in DSP. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8297 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8295 Tsun Kit Lam - Initial Technology Review (Distortion) Lam, Tsun Kit This paper reviews the underlaying technologies used in digital distortion Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8295 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8304 Initial Technology Review Tweedley, Hayden This report presents a review of the technology for which the Author intends to develop a digital simulation. The technology being treated is the original Leslie rotary loudspeaker. The Leslie rotary loudspeaker is an analogue electromechanical system utilizing rotating sound sources to modify sound which is passed through it. Included in this report is a consideration of prior art in digital simulation of the Leslie rotary loudspeaker and recommendations for further development thereof. The intended digital simulation platform for further development is functional script for the Matlab R2011b environment. Final Revision Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8304 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8324 Ryan Brennan Review Assignment Rotary loudspeaker Brennan, Ryan Review assignment 1 on rotary loudspeaker If there are two copies this is the one to look at. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8324 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8302 Digital Implementation of Vibrato Clarke, Adrian Digital Audio Effects are often discussed in audio production circles by their acoustical effect on an input signal. As opposed to discussing what is happening acoustically, this report aims to delve deeper into the DSP (Digital Signal Processing) algorithms underlying an effect to explain how it is being created. The focus of this report is on the digital implementation of a vibrato effect. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8302 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8299 Initial Technology Review: Distortion Ahmadi, Koosha one PDF file Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8299 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8312 Spatial Effects: Binaural Simulation of Sound Source Motion Fernandes, Daniel This report considers the technology needed to achieve binaural simulation of sound source motion based on a single-channel audio input. To do so will require an understanding of Interaural Time Differences, Interaural Level Differences, spectral cues, falloff with distance and the Doppler Effect. Binaural reproduction will be discussed as well as the outline of a simple simulation setup. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8312 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8308 Initial Technology Review- Amplitude and Frequency Modulated Vibrato Leong, Justin Initial Technology Review Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8308 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8294 SPATIAL EFFECTS: 3D MOVEMENT OF A VIRTUAL SOUND SOURCE Jimenez, Daniel R. This document intends to give the reader a first approach into the spatial effects aimed to recreate three dimensional sound atmospheres using a set of headphones as the auditory source for the listener. Throughout this document the reader will find an introductory approach to the spatial audio effects that will directly affect the results expected of a well-designed simulated 3D sound environment. The analysis of these effects will allow the reader a better understanding of the expected outcome of their application in recreating such environment through a set of headphones. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8294 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8298 Technology Review of Dynamic Range Compression Stedman, Christopher Compressors and limiters are audio hardware / software devices, which fall under the broader category of dynamics processors. In their various forms, they find use in all aspects of sound production and system engineering. They produce at their output a copy of the input with some level dependent gain attenuation applied. The user typically has some control over the amount of attenuation and the manner in which it is applied. This report will cover the various forms and uses of these devices, along with an investigation of the mathematical basis upon which one may emulate an analogue hardware compressor in a programming environment. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8298 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8296 Initial Technology Review - Vocoder Carney, Thomas Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8296 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8310 Ryan Brennan Review Assignment Rotary loudspeaker Brennan, Ryan Review assignment 1 of the rotary loudspeaker effect Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8310 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8311 Envelope Controlled Filtering Cuthbert, Grant Assignment 1: Initial Technology Review, "Envelope Controlled Filtering" Amended: Missing reference Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8311 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8306 DESC9115 2012 DIGITAL AUDIO SYSTEMS ASSIGNMENT 1: INITIAL TECHNOLOGY REVIEW Chang, Yu-Hsiang Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8306 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8293 Modeling Dynamic Range Compression in the Digital Domain Pierce, McLean Dynamic range compression is a common and practical tool used to reduce the dynamic range of an audio signal and increase the final loudness. Compression has a long history of use in audio recording and broadcast and has been implemented through a variety of methods in the analog and digital domain. In this paper, the basics of compression are discussed, along with some drawbacks of the technology and the means of implementing dynamic compression technologies in the digital domain. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8293 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8315 DESC9115 Initial Technology Review - Limiter Rasa, Alexander James DESC9115 Initial Technology Review - Limiter. Alexander James Rasa. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8315 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8303 DESC 9115 2012 Initial Review Report Yu-Hsien, Chang Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8303 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8323 Assignment 1 Initial Review Delays Johnson, Samuel In many physical acoustic spaces, sound waves will often reflect off surfaces causing a perceived delay to the human ear. These delays have various effects in the physical domain, but are sometimes desired in the digital domain for musical effects, to compliment a post production visual for continuity, or even just to make something sound different and unique. It is important to replicate these delayed sounds in a realistic way and realistic way to let the listener know what is happening, rather than having an unnatural sounding output. By using a mix of acoustical phenomena and digital algorithms, a digital system will be able to take an input signal and replicate some of these sounds caused by a “digital delay”. Tue, 08 May 2012 00:00:00 GMT https://hdl.handle.net/2123/8323 2012-05-08T00:00:00Z https://hdl.handle.net/2123/8252 DESC9115 2012 Initial Review Report Chang, Yu-Hsien Wed, 25 Apr 2012 00:00:00 GMT https://hdl.handle.net/2123/8252 2012-04-25T00:00:00Z