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PhD full funding openings

Experimental Virtual Archeological-Acoustics : Influence of performance spaces on Historically Informed Performance

Thesis funding : Fall 2019 (2019-2022)

 

Candidatures will be processed starting 3-July-2019 and evaluated as received until the position is filled.

In the context of the collaborative project EVAA, comprising the Institut Jean Le Rond ∂’Alembert, IReMus, and the CRC – Equipe Conservation et recherche, a PhD funding opportunity (2019-2022) is available.

Subject

Experimental Virtual Archeological-Acoustics: Influence of performance spaces on Historically Informed Performance

Context

The research and practice of “historically informed performance” (HIP) has advanced significantly in recent decades. This discipline can be summarized as a regard to performance which aims to be faithful to the approach, manner, and style of the musical era in which a work was originally conceived. Two aspects are typically considered in such efforts: performance practice of musicians and use of period instruments. However, little consideration has been given to the influence of performance space on the performance, instrument, or composition of the time. Using real-time virtual acoustic simulations, EVAA aims to include the performance venue’s acoustics as a third component of study for HIP. Placing musicians in various virtual performance spaces, we examine the impact of the room’s acoustics on performance. Such a study also informs investigations on the evolution of instruments themselves, with respect to the evolution of performance venues. Inclusion of the role of composition completes the circle, as it can be seen as both a driving force of change and a response to the changing physics of the instruments and rooms used for music performance. Extending the methodologies of experimental archeology, recent advances in computational accuracy of acoustic virtual reality simulations offer the possibility to create ecologically valid reconstructions of historic sites. The project will employ an interactive immersive real-time simulator allowing musicians to perform “live” within virtual reconstructions of historic venues. This simulator significantly advances upon previous projects in realistic off-line rendering of historic sites. Observations of the impact of acoustic variations on player performance, and comparisons of resulting performances between historically suitable venues and modern performance spaces from an audience perspective, will complete the feedback loop between performer and listener necessary for a full understanding of the historical musical context. The three participating laboratories bring complementary knowledge and skills to the project. IReMus has developed a musicological expertise on the historical approach of music and acoustics and historically informed performance issues. d’Alembert brings its experience in historical virtual acoustic simulations, physical and musical instrument acoustics, and performer and psychoacoustic studies. CRC brings its notable experience in heritage musical acoustics and heretically accurate facsimile construction as well as initial documentary research on performance venues, present in its permanent collection.

Thesis topic

The PhD project consists of assisting in the creation of a real-time room acoustic simulator for use with musicians, taking into account the musicians movements and the impact of dynamic source directivity. The simulator will be put into use for studying the impact of room acoustics on musicians playing, focusing on comparisons between Baroque chamber music venues and modern day equivalents. The thesis work will contribute to the research and documentation of pertinent venues, acoustic measurements of existing venues, and the creation of ecologically valid geometrical acoustics models of on these venues. The thesis will comprise a series of perceptual studies examining the impact of acoustic variations on playing, in the context of historically informed performance methods.

Candidate

The candidate, with a master’s degree in acoustics or related fields, will need the skills to work at the intersection of room acoustic modelling, psychoacoustics, and archeological acoustics (archeoacoustics). An interest/passion for history and music be an additional asset. The ability to work independantly as well as part of a group is fundamental to a successful candidate. Motivation, self-discipline, and maturity are needed for this highly interdisciplinary and collaborative project.

Supervision

The PhD will be supervised by Brian FG Katz, CNRS Research Director at the Institut d’Alembert, Sorbonne University, and Théodora Psychoyou, Assistant Professor, University of Paris-Sorbonne and IReMus.

Candidature

Please submit a detailed CV, Master’s degree transcript, letter of motivation concerning the proposed subject, and a list of 2 references that can be contacted. Material, PDF format, should be addressed to brian.katz@sorbonne-universite.fr.

Relevant articles

B. N. Postma, S. Dubouilh, and B. F. Katz, “An archeoacoustic study of the history of the Palais du Trocadero (1878-1937),” J. Acoust. Soc. Am., pp. 2810–2821, Apr. 2019, doi:10.1121/1.5095882. SI: Room Acoustics Modeling and Auralization.

B. N. Postma, H. Demontis, and B. F. Katz, “Subjective evaluation of dynamic voice directivity for auralizations,” Acta Acust united Ac, vol. 103, pp. 181–184, 2017, doi:10.3813/AAA.919045.

B. N. Postma and B. F. Katz, “Perceptive and objective evaluation of calibrated room acoustic simulation auralizations,” J. Acoust. Soc. Am., vol. 140, pp. 4326–4337, Dec. 2016, doi:10.1121/1.4971422.

B. N. Postma and B. F. Katz, “Creation and calibration method of virtual acoustic models for historic auralizations,” Virtual Reality, vol. 19, no. SI: Spatial Sound, pp. 161–180, 2015, doi:10.1007/s10055-015-0275-3.

D. Thery, D. Poirier-Quinot, B. N. Postma, and B. F. Katz, “Impact of the visual rendering system on subjective auralization assessment in VR,” in Virtual Reality and Augmented Reality (J. Barbic, M. D’Cruz, M. Latoschik, M. Slater, and P. Bourdot, eds.), no. 10700 (EuroVR 2017) in Lecture Notes in Computer Science (LNCS), pp. 105–118, Springer, 2017, doi:10.1007/978-3-319-72323-5_7.

B. N. Postma, D. Poirier-Quinot, J. Meyer, and B. F. Katz, “Virtual reality performance auralization in a calibrated model of Notre-Dame Cathedral,” in Euroregio, (Porto), pp. 6:1–10, June 2016.

Experimental Virtual Archeological-Acoustics : Influence of performance spaces on Historically Informed Performance

Thesis funding : Fall 2019 (2019-2022)

 

Candidatures will be processed starting 3-July-2019 and evaluated as received until the position is filled.

In the context of the collaborative project EVAA, comprising the Institut Jean Le Rond ∂’Alembert, IReMus, and the CRC – Equipe Conservation et recherche, a PhD funding opportunity (2019-2022) is available.

Subject

Experimental Virtual Archeological-Acoustics: Influence of performance spaces on Historically Informed Performance

Context

The research and practice of “historically informed performance” (HIP) has advanced significantly in recent decades. This discipline can be summarized as a regard to performance which aims to be faithful to the approach, manner, and style of the musical era in which a work was originally conceived. Two aspects are typically considered in such efforts: performance practice of musicians and use of period instruments. However, little consideration has been given to the influence of performance space on the performance, instrument, or composition of the time. Using real-time virtual acoustic simulations, EVAA aims to include the performance venue’s acoustics as a third component of study for HIP. Placing musicians in various virtual performance spaces, we examine the impact of the room’s acoustics on performance. Such a study also informs investigations on the evolution of instruments themselves, with respect to the evolution of performance venues. Inclusion of the role of composition completes the circle, as it can be seen as both a driving force of change and a response to the changing physics of the instruments and rooms used for music performance. Extending the methodologies of experimental archeology, recent advances in computational accuracy of acoustic virtual reality simulations offer the possibility to create ecologically valid reconstructions of historic sites. The project will employ an interactive immersive real-time simulator allowing musicians to perform “live” within virtual reconstructions of historic venues. This simulator significantly advances upon previous projects in realistic off-line rendering of historic sites. Observations of the impact of acoustic variations on player performance, and comparisons of resulting performances between historically suitable venues and modern performance spaces from an audience perspective, will complete the feedback loop between performer and listener necessary for a full understanding of the historical musical context. The three participating laboratories bring complementary knowledge and skills to the project. IReMus has developed a musicological expertise on the historical approach of music and acoustics and historically informed performance issues. d’Alembert brings its experience in historical virtual acoustic simulations, physical and musical instrument acoustics, and performer and psychoacoustic studies. CRC brings its notable experience in heritage musical acoustics and heretically accurate facsimile construction as well as initial documentary research on performance venues, present in its permanent collection.

Thesis topic

The PhD project consists of assisting in the creation of a real-time room acoustic simulator for use with musicians, taking into account the musicians movements and the impact of dynamic source directivity. The simulator will be put into use for studying the impact of room acoustics on musicians playing, focusing on comparisons between Baroque chamber music venues and modern day equivalents. The thesis work will contribute to the research and documentation of pertinent venues, acoustic measurements of existing venues, and the creation of ecologically valid geometrical acoustics models of on these venues. The thesis will comprise a series of perceptual studies examining the impact of acoustic variations on playing, in the context of historically informed performance methods.

Candidate

The candidate, with a master’s degree in acoustics or related fields, will need the skills to work at the intersection of room acoustic modelling, psychoacoustics, and archeological acoustics (archeoacoustics). An interest/passion for history and music be an additional asset. The ability to work independantly as well as part of a group is fundamental to a successful candidate. Motivation, self-discipline, and maturity are needed for this highly interdisciplinary and collaborative project.

Supervision

The PhD will be supervised by Brian FG Katz, CNRS Research Director at the Institut d’Alembert, Sorbonne University, and Théodora Psychoyou, Assistant Professor, University of Paris-Sorbonne and IReMus.

Candidature

Please submit a detailed CV, Master’s degree transcript, letter of motivation concerning the proposed subject, and a list of 2 references that can be contacted. Material, PDF format, should be addressed to brian.katz@sorbonne-universite.fr.

Relevant articles

B. N. Postma, S. Dubouilh, and B. F. Katz, “An archeoacoustic study of the history of the Palais du Trocadero (1878-1937),” J. Acoust. Soc. Am., pp. 2810–2821, Apr. 2019, doi:10.1121/1.5095882. SI: Room Acoustics Modeling and Auralization.

B. N. Postma, H. Demontis, and B. F. Katz, “Subjective evaluation of dynamic voice directivity for auralizations,” Acta Acust united Ac, vol. 103, pp. 181–184, 2017, doi:10.3813/AAA.919045.

B. N. Postma and B. F. Katz, “Perceptive and objective evaluation of calibrated room acoustic simulation auralizations,” J. Acoust. Soc. Am., vol. 140, pp. 4326–4337, Dec. 2016, doi:10.1121/1.4971422.

B. N. Postma and B. F. Katz, “Creation and calibration method of virtual acoustic models for historic auralizations,” Virtual Reality, vol. 19, no. SI: Spatial Sound, pp. 161–180, 2015, doi:10.1007/s10055-015-0275-3.

D. Thery, D. Poirier-Quinot, B. N. Postma, and B. F. Katz, “Impact of the visual rendering system on subjective auralization assessment in VR,” in Virtual Reality and Augmented Reality (J. Barbic, M. D’Cruz, M. Latoschik, M. Slater, and P. Bourdot, eds.), no. 10700 (EuroVR 2017) in Lecture Notes in Computer Science (LNCS), pp. 105–118, Springer, 2017, doi:10.1007/978-3-319-72323-5_7.

B. N. Postma, D. Poirier-Quinot, J. Meyer, and B. F. Katz, “Virtual reality performance auralization in a calibrated model of Notre-Dame Cathedral,” in Euroregio, (Porto), pp. 6:1–10, June 2016.

Senior Application Engineer

Bruel & Kjaer

Location:  Atlanta, GA

 

Subject:  POSITION DESCRIPTION FOR SENIOR APPLICATION ENGINEER

Support Area:  Americas

Company Information: Bruel & Kjaer is a well-established integrated solution provider specializing in sound and vibration measurement market.  Bruel & Kjaer delivers advanced technological solutions and products of renowned quality. Our products cover the entire sound and vibration measurement chain from a single transducer to a complete turnkey system.

  • Products: Our product portfolio covers all of the components and tools required in the measurement and analysis of sound and vibration. It is unique in the industry that you can source all components from one supplier.
  • Systems: Our products are designed to fit together intelligently as systems. This simplifies the process of creating systems optimized to solve specific customer issues.
  • Solutions: In certain instances, we not only supply the systems, but we actually operate them and supply analysis results, meaning that our customers can focus on their core business and don’t have to worry about operating and maintaining equipment.
  • Services: We offer a full range of services for our products and systems, including installation, training, support, and software updates, calibration, planned maintenance, repair, and rental.

Responsibilities:  The Senior Application Engineer position is part of the Americas Support Group and is responsible for supporting both our customers and Sales Engineers in the sale and use of our products.  The position focuses mainly on the following Post-Sale Support Activities

  • Post-Sale Support
    • Technical Support for internal and external customers
      • Providing general support on sound and vibration theory, system usage and applications
      • Resolving software issues through training, bug reporting and development of work arounds
      • Troubleshooting hardware issues on systems and instruments
      • Providing simple solutions to meet customer needs
    • Supporting the North America Service Center on troubleshooting instrument failures
    • Mentoring Application and Support Engineers to build competencies on Sound and Vibration Theory and Product Knowledge

Additional Responsibilities could include the following Pre-Sale and On-Site Services

  • Pre-Sale Activities
    • Developing and delivering high quality technical presentations to customers on advanced solutions and activities.
    • Executing customer demonstrations of working solutions and instruments
    • Presenting Seminars and Webinars on sound and vibration theory, advanced system applications in areas of engineer’s specialty, and Bruel & Kjaer solutions.
    • Training internal sales and support staff on the theory, benefits and usage of solutions
  • On-Site Services
    • Installation of Bruel & Kjaer systems at customer facilities
    • Performing detailed System and/or instrument training on products, applications and solutions
    • Test Service work – performing contracted testing services work at customer facilities
    • Delivering on-site Seminars specific to customer requirements

Qualifications and Skills Required

  • Bachelor Degree in Engineering, Physics or other technical field
  • Minimum 7 Years experience in noise and/or vibration testing
  • Solid knowledge of Sound and Vibration Principles and how they are applied to Measurements
  • Significant experience in Signal Analysis
  • Strong background in Electronics/Circuits and Instrumentation
  • Skilled in demonstrating and running software applications, working with databases, networking and general pc related skills.
  • Experience troubleshooting hardware and software issues
  • Basic commercial understanding
  • Strong written, communication and presentation skills
  • Highly motivated self-starter
  • Ability to work independently
  • Highly organized with the ability to multitask and prioritize in a busy environment
  • Travel required (10% or less)

Apply for Senior Applications Engineer – B&K using the link below:
https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=e665d24f-bc41-4a89-9fc5-7fe9c8f813a7&ccId=19000101_000001&jobId=149016&lang=en_US&source=CC4

 

 

Senior Power Amplifier Engineer (Engr III)

QSC

Location: Boulder, CO

Job Description

Position Title:              Senior Power Amplifier Engineer (Engr III)

Department:                  803 – R&D Electrical Hardware Engineering

FSLA Code:                    Salaried, Exempt

Reports To:                   Director, Hardware Engineering

Revised:                          Sep 10, 2018

Job Summary:

The QSC Senior Power Amplifier Engineer is responsible for creating and implementing electronic hardware products for QSC. The Engineer will design and develop audio specific power supplies and amplifiers with power levels ranging from several watts to tens of kilowatts. A successful candidate needs a broad technical background designing, simulating, fabricating, and testing both switch mode power supplies (SMPS) and class D audio power amplifiers.

Typical responsibilities include analog and digital circuit design, architectural design, schematic capture, circuit modeling and simulation, PCB layout, timing and signal integrity analysis, components evaluation and selection, solving EMC and regulatory issues, bringing up prototypes and troubleshooting, test and validation of the designs.

Engineer is responsible for delivering product design that meets all safety, regulatory, and performance requirements. In addition, the QSC Senior Power Amplifier Engineer will provide guidance to junior team members and technicians.

The position requires the individual to work well within a small, cross-functional team consisting of mechanical, software, and firmware engineers, as well as product managers, program managers, manufacturing engineers, and NPI engineers.  The role requires someone who is self-motivated, has excellent problem solving skills, possesses a keen attention to detail, works well within a small team, and can produce results.

Education and Experience:

  • BSEE required, MSEE preferred
  • 10 + years’ design experience is required
  • Experience with simulation tool(s) is required
  • Extensive experience with schematic capture/PCB layout software required. (Cadence Allegro preferred).
  • Experience with high fidelity analog & digital audio circuit design, operational amplifiers, and high dynamic range audio data converter
  • Experience with audio power amplifier design, such as Class-D amplifiers
  • Solid theoretical and practical knowledge of switch-mode power conversion for use in DC/DC power supplies
  • Magnetic design skills for inductors and transformers required
  • Knowledge of regulatory compliance requirements and test methods including UL, FCC, CE, and others as appropriate
  • Good communication skills, both written and oral, in English
  • Superior problem solving skills: issue identification, problem structuring, analysis, and developing recommendations
  • Ability to produce results in a dynamic work environment
  • VHDL or Verilog experience is a plus
  • Experience with C++ scripting and other high-level programming languages is a plus

Duties and Responsibilities:

  • Designs and implements analog and digital electronic hardware with an emphasis on audio applications
  • Development and analysis of audio electronics components and systems
  • Develops power supplies and amplifiers for use in professional audio products.
  • SMPS topology analysis and selection
  • Design simulation in Micro-Cap
  • Magnetic design and prototype of inductors and transformers
  • Tests, validates, and verifies audio performance of audio systems and subsystems.
  • Test, qualify, and debug supply and amplifier to meet FCC, CE, UL, etc. standards
  • Drives and achieves results that meet aggressive time and cost constraints
  • Works effectively with other design engineers, manufacturing, test engineering and outside suppliers to ensure a high quality, robust solution in minimal time
  • Must be self-motivated in order to achieve assigned objectives with minimal supervision
  • Lead, mentor, and support junior engineers in their career development and project design efforts
  • Travel to Asia and other countries approximately 5% of the time
  • Performs other duties as assigned

 

Please apply by submitting your resume to Matt.Hildebrandt@qsc.com or careers@qsc.com.

These statements reflect the general details considered to describe the principal functions of the job, and are not to be construed as detailed descriptions of all the work requirements that may be inherent in the position.

 

 

 

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