Method for optimizing speech pickup in a communication device
AssigneeEPOS Group A/S
InventorsAnders Røser Hansen, Poul Peder Hestbek, Casper Fynsk
Life of this patent
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Abstract
A method for optimizing speech pickup in a speakerphone system, wherein the speakerphone system comprises a microphone system placed in a specific configuration, wherein the method comprising receiving acoustic input signals by the microphone system, processing said acoustic input signals by using an algorithm for focusing and steering a selected target sound signal towards a desired direction, and transmitting an output signal based on said processing.
Claims20
A method for optimizing speech pickup in a communication device utilizing a loudspeaker system, wherein the communication device comprises a microphone system placed in a specific configuration, wherein the method comprising:
- receiving acoustic input signals by the microphone system,
- providing a directional output signal based on signals from said microphone system,
- providing an omnidirectional output signal based on signals from said microphone system,
- processing said acoustic input signals by determining a mixing ratio according to a determined reverberation level in a room in which the microphone system is placed, and mixing said directional output sound signal with said omnidirectional output signal based on the determined mixing ratio, the mixing ratio defining a ratio of omnidirectional output signal to the directional output signal, and
- transmitting an output signal based on said processing.
A system for optimizing speech pickup in a loudspeaker-based communication device of the system, comprising:
- an input unit comprising a microphone system placed in a specific configuration and adapted for receiving audio input signals and providing electric audio input signals;
- a mixing unit for determining a mixing ratio based on a determined reverberation level in a room in which the input unit is placed, and mixing on the basis of the determined mixing ratio a directional signal obtained from said electric audio input signals with an omnidirectional signal obtained from said electric audio input signals, and
- an output unit for providing an output signal perceivable by a user as sound representative of said electric audio input signals or a processed version thereof.
A loudspeaker-based communication device for optimizing speech pickup in said communication device, wherein the communication device comprises:
- an input unit comprising a microphone system placed in a specific configuration and adapted for receiving audio input signals and providing electric audio input signals;
- a mixing unit for determining a mixing ratio based on a determined reverberation level in a room in which the input unit is placed, and mixing on the basis of the determined mixing ratio a directional sound signal obtained from said electric audio input signals with an omnidirectional signal obtained from electric audio input signals, and
- an output unit for providing an output signal perceivable by a user as sound representative of said electric audio input signals or a processed version thereof.
Dependencies are inferred from the claim text.