Low Frequency Simulations for Ambisonics Auralization of a Car Sound System

Pinardi, Daniel; Farina, Angelo; Park, Jong-Suh

doi:10.1109/i3da48870.2021.9610959

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…In [ 3 ], the HRTFs are used inside the car to obtain an immersive reproduction exploiting binaural techniques, while in [ 4 ], the HRTFs are needed to recreate a virtual environment in order to evaluate the human being’s perception of a sound system. In recent years, studies on spatial sound and auralization systems in the car cockpit have been investigated and implemented, as reported in [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

HRTFs Measurement Based on Periodic Sequences Robust towards Nonlinearities in Automotive Audio

Cecchi

Bruschi

Nobili

et al. 2023

Sensors

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The head related transfer functions (HRTFs) represent the acoustic path transfer functions between sound sources in 3D space and the listener’s ear. They are used to create immersive audio scenarios or to subjectively evaluate sound systems according to a human-centric point of view. Cars are nowadays the most popular audio listening environment and the use of HRTFs in automotive audio has recently attracted the attention of researchers. In this context, the paper proposes a measurement method for HRTFs based on perfect or orthogonal periodic sequences. The proposed measurement method ensures robustness towards the nonlinearities that may affect the measurement system. The experimental results considering both an emulated scenario and real measurements in a controlled environment illustrate the effectiveness of the approach and compare the proposed method with other popular approaches.

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Section: Introductionmentioning

confidence: 99%

HRTFs Measurement Based on Periodic Sequences Robust towards Nonlinearities in Automotive Audio

Cecchi

Bruschi

Nobili

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…Indeed, they are used for dereverberation or echo reduction [1]- [4] and speech recognition [5]. Other applications include Active Noise Control (ANC) [6], [7], multi-channel audio recording [8], beamforming [9]- [11], acoustics simulations [12], and structural health monitoring [13]. Arrays of microphones also allow determining the Direction of Arrival (DoA) of sound [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Full-Digital Microphone Meta-Arrays for Consumer Electronics

Pinardi

Toscani

Binelli

et al. 2023

IEEE Trans. Consumer Electron.

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Microphone arrays of various sizes and shapes are widely employed in consumer electronics devices such as smart speakers, speakerphones, smart TVs, smartphones, PCs, and headphones. Therefore, the possibility of creating arrays of arrays (i.e., meta-arrays), by easily connecting several smaller units, is particularly interesting: it allows for different shapes, with an increased number of microphones and improved performance, while keeping costs low. In this paper, full-digital microphone meta-arrays are presented: they are constituted by an arrangement of several triangular units, each featuring four digital Micro Electro-Mechanical Systems (MEMS) capsules connected in daisy-chain through the Automotive Audio Bus (A 2 B). Two prototypes have been built: a planar meta-array made of seven triangles (28 capsules) and a 3-dimensional meta-array with 14 triangles (56 capsules). Numerical simulations were carried out and compared against experimental measurements performed on the prototypes, showing an excellent matching. Finally, the 3-dimensional meta-array was compared with a spherical microphone array widely considered the state-of-the-art equipment in the last decade, demonstrating its potential in telecommunication applications.

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“…These applications are also important for automotive scenario, since the car is nowadays the most used audio listening environment. Automotive audio has been attracting a great deal of attention in recent years as well as the application of immersive audio in the car cockpit, as reported in [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Using Periodic Sequences for HRTFs Measurement Robust Towards Nonlinearities in Automotive Audio Applications

Cecchi

Bruschi

Nobili

et al. 2022

2022 IEEE International Workshop on Metrology for Automotive (MetroAutomotive)

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Head Related Transfer Functions (HRTFs) are a mathematical representation of the acoustic transfer functions between a sound source and the listener's ears. They play an important role for both creating immersive audio scenarios and evaluating the perception of a sound system from human being point of view. These applications are also important for automotive scenario, since the car is nowadays the most used audio listening environment. Automotive audio has been attracting a great deal of attention in recent years as well as the use of HRTFs inside the car for creating these immersive scenarios. In this context, we proposed a technique for HRTFs measurement based on perfect or orthogonal periodic sequences that allows an effective measurement robust towards system nonlinearities. Experiments with an emulated scenario and measurements performed in real environments illustrate the validity of the approach in comparison with other competing HRTFs measurement methods of the state of the art.

show abstract

Low Frequency Simulations for Ambisonics Auralization of a Car Sound System

Cited by 9 publications

References 6 publications

HRTFs Measurement Based on Periodic Sequences Robust towards Nonlinearities in Automotive Audio

HRTFs Measurement Based on Periodic Sequences Robust towards Nonlinearities in Automotive Audio

Full-Digital Microphone Meta-Arrays for Consumer Electronics

Using Periodic Sequences for HRTFs Measurement Robust Towards Nonlinearities in Automotive Audio Applications

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