US 11,457,325 B2 · Dynamic time and level difference rendering for audio spatialization

Abstract

A system is disclosed for using an audio time and level difference renderer (TLDR) to generate spatialized audio content for multiple channels from an audio signal received at a single channel. The system selects an audio TLDR from a set of audio TLDRs based on received input parameters. The system configures the selected audio TLDR based on received input parameters using a filter parameter model to generate a configured audio TLDR that comprises a set of configured binaural dynamic filters, and a configured delay between the multiple channel. The system applies the configured audio TLDR to an audio signal received at the single channel to generate spatialized multiple channel audio content for each channel of the multiple audio channel and presents the generated spatialized audio content at multiple channels to a user via a headset.

Claims20

Dependent claims

A method comprising:

selecting an audio time and level difference renderer (TLDR) from a set of one or more audio TLDRs based on one or more received input parameters;
configuring the selected audio TLDR based on the one or more received input parameters using a filter parameter model, the configured audio TLDR comprising:
a set of configured binaural dynamic filters, wherein the binaural dynamic filters in the set are coupled via multiple channels for receiving input audio signals that are split from a single channel, wherein the multiple channels comprise a left channel and a right channel;
and
a configured delay between the multiple channels;
applying the configured audio TLDR to an audio signal received at the single channel to generate spatialized audio content for each channel of the multiple channels;
and
presenting the generated spatialized audio content at multiple channels to a user via a headset.

5 more elements

A system comprising:

an audio controller configured to:
select an audio time and level difference renderer (TLDR) from a set of one or more audio TLDRs based on one or more received input parameters;
configure the selected audio TLDR based on the one or more received input parameters using a filter parameter model, the configured audio TLDR comprising:
a set of configured binaural dynamic filters, wherein the binaural dynamic filters in the set are coupled via multiple channels for receiving input audio signals that are split from a single channel, wherein the multiple channels comprise a left channel and a right channel;
and
a configured delay between the multiple channels;
apply the configured audio TLDR to an audio signal received at the single channel to generate spatialized audio content for each channel of the multiple channels;
and
a transducer array configured to present the generated spatialized audio content to a user.

6 more elements

A non-transitory computer-readable medium comprising computer program instructions that, when executed by a computer processor of an audio system, cause the audio system to perform steps comprising:

selecting an audio time and level difference renderer (TLDR) from a set of one or more audio TLDRs based on one or more received input parameters;
configuring the selected audio TLDR based on the one or more received input parameters using a filter parameter model, the configured audio TLDR comprising:
a set of configured binaural dynamic filters, wherein the binaural dynamic filters in the set are coupled via multiple channels for receiving input audio signals that are split from a single channel, wherein the multiple channels comprise a left channel and a right channel;
and
a configured delay between the multiple channels;
and
applying the configured audio TLDR to an audio signal received at the single channel to generate spatialized audio content for each channel of the multiple channels;
and
presenting the generated spatialized audio content at multiple channels to a user via a headset.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/379,730Filed 19 Jul 2021 · us provisional application

Priority

20 Jul 2020

Published

US 2022/0021996 A120 Jan 2022

Granted

27 Sep 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04S 1/005
Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution: for headphones
H04S 7/304
Tracking of listener position or orientation: for headphones
H04S 7/301
Control circuits for electronic adaptation of the sound field: automatic calibration of stereophonic sound system, e.g. with test microphone
H04S 2400/01
Details of stereophonic systems covered by H04S but not provided for in its groups: multi-channel, i.e. more than two input channels, sound…

Dynamic time and level difference rendering for audio spatialization

Life of this patent

Dynamic time and level difference rendering for audio spatialization

Life of this patent

Abstract

Claims20