Patent ID: 9313599
Filing Date: 2016-04-12
CPC Classification: H04R,H04S

Claim Text:
1. An apparatus, comprising: one or more processors; and one or more memories including computer program code, the one or more memories and the computer program code configured, with the one or more processors, to cause the apparatus to perform at least the following: accessing at least two audio signals captured using at least two omnidirectional microphones and corresponding to a received sound, wherein the at least two omnidirectional microphones are effective for capturing the at least two audio signals coming from all directions; determining a directional estimation based on subbands between the at least two audio signals and wherein one or more dominant sound source directions are determined, each of the one or more dominant sound source directions being dependent on a direction of the received sound, where the received sound can come from potentially all directions; determining a first signal based at least in part on the directional estimation wherein the determined first signal comprises emphasized subbands having the one or more dominant sound source directions relative to subbands that deviate from the one or more dominant sound source directions, wherein the subbands that deviate from the one or more dominant sound source directions are attenuated, and wherein the emphasized subbands include a mid signal of the received sound; determining a second signal wherein an ambience component is introduced for a sound image, wherein the ambience component includes a side signal of the received sound; and creating a resultant audio signal for the sound image using the first and second signals wherein the resultant audio signal is at least one multichannel signal having the ambience component including the side signal, the emphasized subbands having the one or more dominant sound source directions including the mid signal and the attenuated subbands that deviate from the one or more dominant sound source directions.