Master Thesis - Loudspeaker Characterization For Public Venues

DSP and Acoustic

2 students completing 30/60 credits (20/40 weeks) each.

Background

Spinorama measurements describe a loudspeaker’s frequency response and sound radiation across different angles. They are commonly used for cabinet speakers in domestic listening environments, but public indoor and outdoor venues often use other loudspeaker types and installation setups. This thesis will explore how measurement methods can be adapted to evaluate these systems and their performance in real applications.

Goal

The objectives below are suggestions rather than strict requirements. We will decide together which objectives to focus on and whether to adjust them to fit your interests and the direction of the thesis.

• Review existing measurement methods, including Spinorama, and assess their suitability for loudspeakers used in public venues, such as ceiling speakers, column speakers and distributed systems.
• Investigate how installation, venue acoustics, audience coverage, and indoor or outdoor conditions affect measurement results.
• Develop or evaluate curves and metrics that describe application-specific performance, such as frequency-response consistency and coverage across audience areas.
• Measure and/or simulate selected configurations, compare conventional and proposed methods, and recommend approaches to support the acoustic and signal-processing design of future Axis Communications products.

Who are you?

For this Thesis proposal we target students with a strong interest in acoustics and digital signal processing of audio signals. Most likely you are studying a Master Program in Signal Processing, Acoustics or Engineering Physics.

OK, I am interested! What do I do now?

• Applications are accepted in both Swedish and English, and you apply via the proposal advert.
• The announced thesis is open only to students affiliated with a Swedish University/College either directly or via an exchange program.
• When the thesis proposal states that it includes two students working together, we would like you to apply in pairs. In these cases, send one application each but make sure to clearly state in your application who your co-applicant is. If you have any questions regarding this, please do not hesitate to contact us.
• Please attach your CV and University/College grade summary.

Who to contact for any questions regarding the position!

Please contact Henrik Liberg, henrik.liberg@axis.com, +46 46 272 36 43.

Certain roles at Axis require background checks, which means applicable verifications will be done in these recruitments. Notice will be provided before we take any action.

We enable a smarter and safer world by creating innovative solutions for improving security and business performance. As a network technology company and industry leader, we offer solutions in video surveillance, access control, intercom, and audio systems, enhanced by intelligent analytics applications.

With around 6,000 committed employees in over 50 countries, we collaborate with partners worldwide. Together, we thrive in our friendly, open, and collaborative culture and inspire each other to think beyond the expected. United by our commitment to inclusion, diversity, and sustainability, we consistently seek to develop our skills and way of working.

For more information about Axis, please visit our website www.axis.com.

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