BSM-iMagLS: ILD Informed Binaural Signal Matching for Reproduction with Head-Mounted Microphone Arrays - Supplemental Material

Auralization Examples

These auralizations were generated using the image source method in a simulated room of dimensions 10 × 6 × 3 meters, with a reverberation time (T60) of 0.48 seconds.

Stimuli:

• Castanets

• Female Speech

Algorithms:

• HOA (High-Order Ambisonics) – Reference signals generated using 35th-order Ambisonics rendering.

• FOA (First-Order Ambisonics) – Signals simulated using a first-order Ambisonics array with 4 microphones.

• BSM_LS – Binaural Signal Matching (BSM) signals captured with a 4-microphone head-mounted array (simulated using the EasyCom ATF). LS refers to the Least Squares method used to calculate the BSM filters.

• BSM_MLS – Similar to BSM_LS, but using the Magnitude Least Squares (MagLS) method for computing the BSM filters.

• BSM_iMLS – The proposed method from this paper, optimizing the BSM filters for both MagLS and interaural level difference (ILD) error reduction. See the main text for further details.