Effects of noise and distortion in measurement of room impulse response by swept sine technique

Ćirić, Dejan; Pantić, Aleksandar; Radulović, Dragana

doi:10.1504/ijris.2013.055124

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A Instrument Dynamic Range and Frequency Response1

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2022

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“…The total lack of spurious peaks over the entire time length of the loopback impulse response indicates the lack of significant distortions in the measurement system [34], [36], [38].…”

Section: A Instrument Dynamic Range and Frequency Responsementioning

confidence: 99%

A Low-Cost System for Quick Measurements on Noise Barriers in Situ

Guidorzi

Garai

2022

IEEE Trans. Instrum. Meas.

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This paper describes the development of a low-cost device for measuring the acoustic intrinsic characteristics of noise barriers. The system is based on the Teensy 4.1 microcontroller combined with a few other components. The measurements are carried out using a vertical linear microphone antenna housing 6 microphones and a lightweight loudspeaker, wireless connected to the main unit. Both the main system unit and the amplified loudspeaker are powered from normal 5 V USB battery packs, which are easily rechargeable and interchangeable. The system measures 6 impulse responses using an MLS signal and performs a series of calculations and frequency analyses to characterize the device under test, following a simplified version of the European standards EN 1793-5 and EN 1793-6 (commonly referred to as the 'Adrienne method'). One measurement takes few minutes, obtaining results comparable to those obtained with the Adrienne method, which requires a more complicated and heavy measuring equipment and is much more expensive and time consuming.

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“…The total lack of spurious peaks over the entire time length of the loopback impulse response indicates the lack of significant distortions in the measurement system [34], [36], [38].…”

Section: A Instrument Dynamic Range and Frequency Responsementioning

confidence: 99%

A Low-Cost System for Quick Measurements on Noise Barriers in Situ

Guidorzi

Garai

2022

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

show abstract

Effects of noise and distortion in measurement of room impulse response by swept sine technique

Cited by 1 publication

References 0 publications

A Low-Cost System for Quick Measurements on Noise Barriers in Situ

A Low-Cost System for Quick Measurements on Noise Barriers in Situ

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