https://hdl.handle.net/2123/18342 Sun, 07 Jun 2026 22:53:17 GMT 2026-06-07T22:53:17Z https://hdl.handle.net/2123/24667 Assignment Two – Audio Systems Design and Evaluation Ghanavi, Reza Emerging audio systems in stadiums and auditoriums in the last century have been met with several technological and acoustical limitations. In the past decades, high quality digital audio systems, array speakers and computer aid simulations created greater flexibility where high-quality audio systems were in demand. Nowadays, array speakers with their cylindrical sound propagation are more popular in large halls due to lower sound attenuation by distance (3dB attenuation with doubling the distance) and their ability to produce a wide range of frequency bands and physical coverages. Wed, 17 Mar 2021 00:00:00 GMT https://hdl.handle.net/2123/24667 2021-03-17T00:00:00Z https://hdl.handle.net/2123/24666 Individual major audio production project Ghanavi, Reza The main sound design ideas for the provided short episode of Cosmos War of the Planets, directed by Alfonso Brescia (1978), have been developed based on the existing visual cues to reflect realistic acoustics by creating mysteries sound effects and music. Wed, 17 Mar 2021 00:00:00 GMT https://hdl.handle.net/2123/24666 2021-03-17T00:00:00Z https://hdl.handle.net/2123/19864 Studio 405 – Wilkinson Building Ghanavi, Reza Studio 405 is located on the southern part of level 4 of the Wilkinson building (Faculty of Architecture, Design and Planning of the University of Sydney). This six-level building is constructed of a reinforced concrete frame and level 4 with 1866 m^2 is about 15.5% of the total building floor area. This level consists of Studio 405 and several other offices and facilities. The main entrance of Studio 405 is in lobby 400 which is accessible from either staircase 400A or the elevator. The total volume of the Studio is 2025 m^3 (H=3.6m from floor to floor) and its usable volume is 1599m^3 (H=2.8m from floor to the false ceiling). The net usable area of Studio 405 is about 569m^2. The studio is connected to fire exit stairs 430 & 440 from the west and south sides. The studio has a high angle view (H~19m) to Maze Crescent Roade from the southern and eastern windows and limited view to City Road from the southwestern windows. The shape of the Studio is similar to an irregular pentagon with three right angles. A smaller scaled, identical polygon structure (windows area = 62 m^2) is located at the center of the studio. Skylight Dome for capturing daylight energy for the surrounding zones is located directly above the central structure. Glass windows constitute the majority of the south-eastern to north walls (100 m^2) but 30% of these windows are internally shaded by the false ceiling. 17 awning windows conduct the prevalent south eastern and northern winds into the building. The southwestern part of the Studio is connected to the outside courtyard through several windows (12.5m^2) including three awning windows which are the only openings toward prevalent western winds. A narrow window (8.5m^2) is placed on the studio’s southern wall and awning windows on this wall are not usable (locked). All windows are made of aluminum frames and glazed with 6mm tinted glass. The window to wall ratio for tall walls with windows is 0.34. The studio’s floor is covered with a dark carpet and the main area has been partitioned into several adjustable zones. Each partition consists of two or three blocks (1.7*0.6*2m). These blocks are wooden shelves and their back sides are covered with PET (Polyethylene terephthalate) felt panels with 1cm thickness. Students can place their belongings in the shelves and pin sheets on the PET panels. These panels can also absorb sound energy. In addition, the southern walls are all covered with the same material. The false ceiling acoustic panels are made of compressed straws. Fluorescent lights and other facilities such as fire sensors, wifi boosters and air conditioning vents have been installed on the false ceiling and other related electro-mechanical systems and ducts have been installed behind the false ceiling. The artificial illumination of the studio is provided with a total number of 260 (252 *38 W + 8 * 20W) florescent lamps. Studio 405 is used for a variety of functions. The division of the space into factions makes it suitable for use as classrooms where lessons, presentations, seminars and workshops are carried out. Currently, 100 white portable study tables are in use in the studio which provide a total of 162m^2 of desktop space for up to 150 users. The flexible arrangement of furniture allows for groups to use this space for meetings and discussions. There is no computer room in this studio and students use their own devices. There are 9 portable large screen monitors and a sun emulator for educational purposes. Mon, 26 Nov 2018 00:00:00 GMT https://hdl.handle.net/2123/19864 2018-11-26T00:00:00Z https://hdl.handle.net/2123/19861 Sonification of Real-Time Physiological Data for Meditation Practice Ghanavi, Reza Translating biophysical data to meaningful audible pieces has been under investigation in plants, animals and humans [2]. For example, the electrical signal resulting from changing the galvanic response of human skin (GSR) [3] by a physical or emotional stimulus can be used for mapping the parameters of a musical piece [6]. In a similar manner, the temperature change created by the human breath can be translated to audible signals. On this basis a scenario has been developed for a real-time sonification of breathing patterns and GSR data to create an audible reflection of the unconscious mind. This instrument can be a practical device to enhance the power of self-control in meditation practice as mapping the user’s psychophysical signals to musical notes can be a powerful way to control stress by enhancing mindfulness about internal layers of psychological patterns [1]. Mon, 26 Nov 2018 00:00:00 GMT https://hdl.handle.net/2123/19861 2018-11-26T00:00:00Z https://hdl.handle.net/2123/19863 STI Measurement in The Car Ghanavi, Reza In modern car industries, the intelligibility of sound inside the cabin of vehicles has been known as a factor of comfort [6]. One of the known objective methods for evaluating speech intelligibility inside cars is the speech transmission index STI which is the main subject of this report. The measurement aim is to predict the STI in a running car as a factor of speed (background noise). For this purpose, a series of audio- acoustical measurements have been conducted inside a five-door car (Mazda) based on the European standard IEC 60268-16 [4]. As the harshness of background noise in different speeds, compartment reverberation time and speech level are accounted for in the STI calculation, the resulting data can be interoperated as the quality of sound in the car [6]. Further investigations have been done for better understanding the effect of source spectrum and direction on the transmission index and finally the direct measurement method in aarae has been compared with a similar method in Arta (Audio Measurement and Analysis Software) in the room space. Mon, 26 Nov 2018 00:00:00 GMT https://hdl.handle.net/2123/19863 2018-11-26T00:00:00Z https://hdl.handle.net/2123/19862 Video Game Audio Ghanavi, Reza Game sound is the last step in game production industries which plays an important role to enhance the sense of immersion or emotional involvement in most recent games. This feeling can be enhanced by adding ambience and interactive music with the correct transitions. Apart from providing sound materials, the role of a sound designer is to create smooth musical transitions for complex interactive events. Nowadays, the trend of game engines that can implement a real time transformation in acoustical and sound parameters has been increased [6,7,12]. Designing nonlinear sounds for video games can be challenging, especially when sound diversity for interactive scenes and characters is viable. This assignment has been scheduled to be complete individually. Although most of the audio materials have been created by author, some of the music and sound effects have been downloaded from online sources. The asset list and time schedule has been printed in appendices A and B. Mon, 26 Nov 2018 00:00:00 GMT https://hdl.handle.net/2123/19862 2018-11-26T00:00:00Z https://hdl.handle.net/2123/18487 Final Report-Wireless Digital Equalizers XIE, Tian Equalizers are commonly used for manipulating audio effects. (Reiss, McPherson, 2015, p89) However, along with the growth of wireless device in individuals lives, it should be possible to transplant a wireless digital equalizer into smartphone or mobile device to process audios as soon as they need, rather than bring the equalizer device or computer. In this proposal, there will specific analyze the current problems, the specifications of equalizers and the implementation about wireless digital equalizers. Fri, 15 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18487 2018-06-15T00:00:00Z https://hdl.handle.net/2123/18486 Final Report-Wireless Digital Equalizers Xie, Tian Equalizers are commonly used for manipulating audio effects. (Reiss, McPherson, 2015, p89) However, along with the growth of wireless device in individuals lives, it should be possible to transplant a wireless digital equalizer into smartphone or mobile device to process audios as soon as they need, rather than bring the equalizer device or computer. In this proposal, there will specific analyze the current problems, the specifications of equalizers and the implementation about wireless digital equalizers. Tue, 03 Jul 2018 00:00:00 GMT https://hdl.handle.net/2123/18486 2018-07-03T00:00:00Z https://hdl.handle.net/2123/18411 Echo Location Hickey, Ryan Echolocation using digital signal processing has been effectively demonstrated in areas like radar, sonar, seismology and medical imaging where the digital generation of the echo pulse is used for mapping those unique environments; aircraft movement, the ocean floor, the substructure of the earth, or the interior of the human body. But can this same process be applied more directly to room geometry? Proposal for development of a mobile device app designed to map complex room geometry Wed, 27 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18411 2018-06-27T00:00:00Z https://hdl.handle.net/2123/18397 The Doppler Effect: Simulation, Prediction and Relationship to Source Parameters WARREN, REBECCA This report has successfully demonstrated the implementation of programming for the development of a user interface to allow assessment of effect the occurrence and perceptibility of the Doppler effect, including source frequency, velocity, distance, path length and pitch. The parameters to be input into the GUI interface have been investigated, to demonstrate effectiveness of the concept itself, and a range of parameters have been recommended for use in the associated Matlab files to successfully analyse different parameter specifications in the modelling of the Doppler effect. Sun, 24 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18397 2018-06-24T00:00:00Z https://hdl.handle.net/2123/18347 DESC9115 Final Proposal Yichen, Che Because of the good performance of vocoder and the potential value of time and pitch shifting, this paper attempts to create a phase vocoder APP through MATLAB, which is used for teaching or research in the initial stage. The main expectation of this APP can achieve sound, Window type, Spectrogram and Waveform real-time contrast and the diagram (or sound) fast switching. Later stages can be developed as a stand-alone vocoder, or as a Third-party plug-in. Hence, there are three problems in here. Firstly, what is the principle of the phase vocoder? Then, how to implement it in MATLAB? Finally, how to integrate these function into the GUI interface. The results show that GUI interface as expected, waveform, spectrogram, sound and window functions can appear simultaneously, and switching speed as expected. The drawback is that the overall design of the interface is not very intelligent, so it needs to be improved in the future. Fri, 08 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18347 2018-06-08T00:00:00Z https://hdl.handle.net/2123/18348 Final Proposal of a new natural equalizer Zhang, Yingda Fri, 08 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18348 2018-06-08T00:00:00Z https://hdl.handle.net/2123/18345 DESC9115 -Final Proposal-Virtual Studio Sound with Headphone Frew, Alexander The below product proposal is inspired by the Waves NX application and plugin (Waves, 2018). It aims to show the digital audio signal processes that the author has implemented and researched over the Semester for this specific application. Final Proposal for Digital Audio Systems DESC9115, 2018 Fri, 08 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18345 2018-06-08T00:00:00Z https://hdl.handle.net/2123/18343 Final Proposal for Digital Audio Systems, DESC9115, 2018 Ghanavi, Reza Time Warp is a fantastic plugin that converts your digital audio workstation (DAW) to a powerful time stretcher system. The function offers a reliable algorithm based on Filter Bank (sum of sinusoids in frequency domain), the technique that can implement high-fidelity time scaling on a variety of sound sources such as synchronizing the audio with video content and tempo adjustment of the music. Thu, 07 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18343 2018-06-07T00:00:00Z https://hdl.handle.net/2123/18344 Final Proposal Stereo Chorus Hutchens, Thomas Thu, 07 Jun 2018 00:00:00 GMT https://hdl.handle.net/2123/18344 2018-06-07T00:00:00Z