Measuring absorption below 100Hz with a particle velocity-pressure sensor

Conference item


Shearer, DJ and Dance, S (2016). Measuring absorption below 100Hz with a particle velocity-pressure sensor. INTER-NOISE and NOISE-CON Congress and Conference Proceedings,. Hamburg, Germany 21 - 24 Aug 2016 London South Bank University. pp. 3678-3688
AuthorsShearer, DJ and Dance, S
Abstract

© 2016, German Acoustical Society (DEGA). All rights reserved.Absorption is a difficult quantity to measure. The standards based on reverberation chamber measurements are limited to those above 100 Hz. Those based on commercially available impedance tubes are limited to 63 Hz and above. The Microflown impedance gun offers a newer approach to the measurement of absorption coefficients, but is limited to 300-8000 Hz in its commercial form. An extension to the commercial instrumentation to lower the operational range to 40 Hz is proposed. Measurements have been undertaken of dissipative type absorbers and panel absorbers to determine if this method can be used in the 40-100 Hz range. Results are reported and discussed along with the uncertainty in the measurement.

Year2016
JournalProceedings of the INTER-NOISE 2016 - 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future
PublisherLondon South Bank University
Accepted author manuscript
License
CC BY 4.0
Publication dates
Print21 Aug 2016
Publication process dates
Deposited22 Aug 2017
Accepted21 Jul 2016
Page range3678-3688
Permalink -

https://openresearch.lsbu.ac.uk/item/872vq

  • 0
    total views
  • 7
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Related outputs

Henry Wood Hall: The Creation of a Flexible Acoustic Using Airbeds
Shearer, D J, Gomez-Agustina, L, Ballestero, E and Dance, S (2019). Henry Wood Hall: The Creation of a Flexible Acoustic Using Airbeds. Internoise 2019. Madrid, Spain 16 - 19 Jun 2019
Post occupancy perception of acoustics, ventilation and overheating within residential dwellings
Dance, S and Coleman, K (2019). Post occupancy perception of acoustics, ventilation and overheating within residential dwellings. Acoustics 2019. Milton Keynes 13 - 14 May 2019
A new kind of low frequency absorber design suitable for music recital halls
Dance, S, Shearer, D and Menin, P (2019). A new kind of low frequency absorber design suitable for music recital halls. Acoustics 2019. Milton Keynes 13 - 14 May 2019
Face the Music: A 12 year study of the sound of performance and hearing of classical music
Dance, S., Shearer, D. and Zepidou, G. (2019). Face the Music: A 12 year study of the sound of performance and hearing of classical music. International Congress on Acoustics. Aachen, Germany 09 - 13 Sep 2019
Experimental validation of deep-subwavelength by diffsuion by acoustic metadiiffusers
Dance, S., Ballestero, E., Aygun, H., Jimenez, N., Groby, J-P. and Romero-Garcia, V. (2019). Experimental validation of deep-subwavelength by diffsuion by acoustic metadiiffusers. Applied Physics Letters. 115 (8).
Novel sound absorption materials from air laid non woven feather fibres
Dance, S, Dieckmann, E, Sheldrick, L and Cheeseman, C (2018). Novel sound absorption materials from air laid non woven feather fibres. Heliyon. 9 (4).
Acoustic conditions in orchestra pits: are metadiffusers a potential solution?
Dance, S, Ballestero, E, Shearer, D and Aygün, H (2018). Acoustic conditions in orchestra pits: are metadiffusers a potential solution? Auditorium Acoustics 2018. Hamburg, Germany 04 - 06 Oct 2018
A methodology to objectively assess the performance of sound field amplification systems demonstrated using fifty physical simulations of classrooms
Dance, S, Backus, B and Morales, L (2018). A methodology to objectively assess the performance of sound field amplification systems demonstrated using fifty physical simulations of classrooms. Noise and Health. 20 (94), pp. 77-82.
Towards a Novel Acoustic Absorber Using a Magnetically Induced Geometric Nonlinearity in an Elastic Membrane
Shearer, DJ, Dance, S, Gomez-Agustina, L and Randell, J (2018). Towards a Novel Acoustic Absorber Using a Magnetically Induced Geometric Nonlinearity in an Elastic Membrane. Euronoise 2018, the 11th European Congress and Exposition on Noise Control Engineering. Crete, Greece 27 - 31 May 2018 London South Bank University.
Community response from noise emissions from London heliport operation
Gomez-Agustina, L and Dance, S (2018). Community response from noise emissions from London heliport operation. International Conference on Sound and Vibration. Hiroshima, Japan 08 - 12 Jul 2018
Specialist Interest Group in Rooms and Comms - Challenges in Acoustics
Dance, S (2018). Specialist Interest Group in Rooms and Comms - Challenges in Acoustics. Institute of Acoustics, Acoustics 18. City Hall, Cathays Park, Cardiff 23 - 23 Apr 2018 London South Bank University.
Noise and Vibration from Urban Wind Turbines
Dance, S and Dymock, B (2018). Noise and Vibration from Urban Wind Turbines. 47th International Congress and Exposition on Noise Control Engineering. Chicago, USA 26 - 30 Aug 2018 London South Bank University.
Singing and loudness: a short study with the royal opera house
Dance, S, Bernays, J and Liu, S (2018). Singing and loudness: a short study with the royal opera house. Institute of Acoustics - Acoustics 2018. Cardiff 23 - 24 Apr 2018
An investigation of the noise from London Heliport and the Effect on the Local Residents
Dance, S and Gomez-Agustina, L (2018). An investigation of the noise from London Heliport and the Effect on the Local Residents. The 11th European Congress and Exposition on Noise Control Engineering. Crete 27 - 31 May 2018
Urban Wind Turbines: A feasibility study
Dance, S and Dymock, B (2018). Urban Wind Turbines: A feasibility study. CIBSE Technical Symposium 2018 Stretching the envelope. London 12 - 13 Apr 2018 London South Bank University.
Head-tracked auralisations for a dynamic audio experience in virtual reality sceneries
Ballestero, E, Robinson, P and Dance, S (2017). Head-tracked auralisations for a dynamic audio experience in virtual reality sceneries. 24th International Congress on Sound and Vibration. London 23 - 27 Jul 2017 London South Bank University.
Facing the music: Helping classical musicians comply with the Control of Noise at Work Regulations
Dance, S (2016). Facing the music: Helping classical musicians comply with the Control of Noise at Work Regulations. Inter-Noise 2016. Hamburg 21 - 24 Aug 2016 London South Bank University. pp. 6876-6882
A revised speech spectrum for STI calculations
Morales, L, Leembruggen, G, Dance, S and Shield, B (2017). A revised speech spectrum for STI calculations. Applied Acoustics. 132, pp. 33-42.
Impact that Acoustic Design has on Higher Education for Non-English Speaking Students
Dance, S and Sanchez-Pizani, R (2017). Impact that Acoustic Design has on Higher Education for Non-English Speaking Students. International Congress on Sound and Vibration. London 23 - 27 Jul 2017 London South Bank University.
An Investigation into the Effect of Acoustics on Vocal Strain of Opera Singers
Dance, S and Okten, G (2017). An Investigation into the Effect of Acoustics on Vocal Strain of Opera Singers. Internationl congress on Sound and Vibration. London 23 - 27 Jul 2017 London South Bank University.
Face the Music: A before and after study of the hearing acuity of Classical music students
Dance, S (2017). Face the Music: A before and after study of the hearing acuity of Classical music students. International Congress on Sound and Vibration 24. London 23 - 27 Jul 2017 London South Bank University.
A comparison of the hearing acuity of classical musicians
Dance, S (2016). A comparison of the hearing acuity of classical musicians. Acoustics Bulletin. 41 (2), pp. 43-46.
The suitability of additive manufacturing materials in a 1:10 scale reverberation chamber
Brown, S and Dance, S (2016). The suitability of additive manufacturing materials in a 1:10 scale reverberation chamber. INTER-NOISE. Hamburg, Germany 21 - 24 Aug 2016 London South Bank University. pp. 4149-4159