US Patent Application 18027249. Parametric Spatial Audio Rendering with Near-Field Effect simplified abstract
Contents
Parametric Spatial Audio Rendering with Near-Field Effect
Organization Name
Inventor(s)
Mikko-Ville Laitinen of Espoo (FI)
Parametric Spatial Audio Rendering with Near-Field Effect - A simplified explanation of the abstract
This abstract first appeared for US patent application 18027249 titled 'Parametric Spatial Audio Rendering with Near-Field Effect
Simplified Explanation
This patent application describes an apparatus that processes audio signals from multiple microphones to create output audio signals with enhanced spatial perception.
- The apparatus obtains two or more audio signals from a microphone array.
- It calculates the inter-channel difference, which is a measure of the difference between the audio signals from different microphones.
- It also obtains parameter values associated with the audio signals.
- Based on these parameter values, it calculates the inter-aural difference, which is a measure of the difference in sound arrival time and level between the left and right ears.
- The apparatus then generates at least two output audio signals by controlling the inter-aural level differences, using the inter-channel difference and inter-aural difference values.
- The goal is to reproduce sounds that are closer to the microphone array with a higher inter-aural difference in the output audio signals, enhancing the perception of spatial location.
Original Abstract Submitted
An apparatus including circuitry configured to: obtain two or more audio signals, wherein each audio signal is associated with a microphone array; obtain at least one value associated with an inter-channel difference based on the two or more audio signals; obtain at least one parameter value associated with the two or more audio signals; obtain at least one value associated with an inter-aural difference based at least on the at least one parameter value; generate at least two output audio signals by controlling inter-aural level differences of the generated at least two output audio signals based on the at least one value associated with the inter-channel difference and the at least one value associated with the inter-aural difference, such that sounds nearer to the microphone array are reproduced with a higher inter-aural difference at the at least two output audio signals.
