Abstract: A method includes, estimating directional information based on multiple input channel signals representing at least one arriving sound from a sound source captured by respective multiple microphones that have respective known locations relative to each other, wherein said estimating comprises finding a time delay that removes a time difference between said first and second input channel signals; deriving a mid-signal and a side signal on a basis of a first input channel signal, a second input channel signal and said estimated directional information; and generating an output signal comprising a plurality of output channels using said mid-signal, said side signal and said estimated directional information such that the output signal retains a spatial representation of the captured at least one arriving sound. Apparatus and program products are also disclosed.

Abstract: A first apparatus performs the following: determining, using microphone signals corresponding to a left microphone signal from a left microphone and a right microphone signal from a right microphone and using at least one further microphone signal, directional information of the left and right microphone signals corresponding to a location of a sound source; outputting a first signal corresponding to the left microphone signal; outputting a second signal corresponding to the right microphone signal; and outputting a third signal corresponding to the determined directional information.

Abstract: A method includes, for each of a number of subbands of a frequency range and for at least first and second frequency-domain signals that are frequency-domain representations of corresponding first and second audio signals: determining a time delay of the first frequency-domain signal that removes a time difference between the first and second frequency-domain signals in the subband. The method includes forming a first resultant signal including, for each of the number of subbands, a sum of one of the first or second frequency-domain signals shifted by the time delay and of the other of the first or second frequency-domain signals; and forming a second resultant signal including, for each of the number of subbands, a difference between the shifted one of the first or second frequency-domain signals and the other of the first or second frequency-domain signals. Apparatus and program products are also disclosed.

Abstract: Techniques are presented for creating multichannel output signals from input audio signals. A first signal is determined based on a number of subbands into which the input audio signals are divided and based at least in part on a directional estimation wherein the subbands having dominant sound source directions are emphasized relative to subbands having directional estimates that deviate from directional estimates of the dominant sound source directions. A second signal is determined based on the number of subbands wherein an ambient component is introduced to create a perception of an externalization for a sound image. A resultant audio signal is created using the first and second signals. The resultant audio signal is one of a number of multichannel signals. Additionally, it is determined whether binaural audio output or multichannel audio output (or both) is to be output, and the appropriate number of audio output signals are determined and output.

Abstract: Techniques are presented that include determining, using signals captured from two or more microphones configured to detect an acoustic signal from one or more sound sources, one or more prominent sound sources based on the one or more sound sources. The techniques also include determining one or more directions relative to a position of one or more of the two or more microphones for prominent sound source(s). The techniques further include outputting information suitable to be viewed on a display, the information providing for the prominent sound source(s) a visual effect indicating at least in part the one or more directions, relative to a position of one or more of the microphones, of the prominent sound source(s) in the acoustic signal. The information and the corresponding visual effect(s) may be presented on a display, e.g., as part of a screensaver.

Abstract: In accordance with an example embodiment of the present invention, an apparatus is disclosed. The apparatus includes a camera system and an optimization system. The optimization system is configured to communicate with the camera system. At least one microphone is connected to the optimization system. The optimization system is configured to adjust a beamform of the at least one microphone based, at least in part, on camera focus information of the camera system.

Abstract: A method includes, estimating directional information based on multiple input channel signals representing at least one arriving sound from a sound source captured by respective multiple microphones that have respective known locations relative to each other, wherein said estimating comprises finding a time delay that removes a time difference between said first and second input channel signals; deriving a mid-signal and a side signal on a basis of a first input channel signal, a second input channel signal and said estimated directional information; and generating an output signal comprising a plurality of output channels using said mid-signal, said side signal and said estimated directional information such that the output signal retains a spatial representation of the captured at least one arriving sound. Apparatus and program products are also disclosed.

Abstract: An apparatus creates first data stream(s) by processing first audio signal(s) and creates second data stream(s) by processing second audio signal(s). The processing includes detecting phase information from at least one of the second audio signal(s) so as to eliminate the phase information. The second data stream(s) are created without the phase information from the at least one second audio signal. The first and second data streams are output. Another apparatus receives first data stream(s) including first audio signal(s) and receives second data stream(s) including second audio signal(s). The second audio signal(s) include at least one second audio signal where phase information has been eliminated. Phase information is detected from one of a selected first audio signal or a selected second audio signal and is added into the at least one second audio signal. Output audio is rendered using the first and second audio signal(s).

Abstract: A first apparatus performs the following: determining, using microphone signals corresponding to a left microphone signal from a left microphone and a right microphone signal from a right microphone and using at least one further microphone signal, directional information of the left and right microphone signals corresponding to a location of a sound source; outputting a first signal corresponding to the left microphone signal; outputting a second signal corresponding to the right microphone signal; and outputting a third signal corresponding to the determined directional information.

Abstract: A first apparatus performs the following: determining, using at least two microphone signals corresponding to left and right microphone signals and using at least one further microphone signal, directional information of the left and right microphone signals; outputting a first signal corresponding to the left microphone signal; outputting a second signal corresponding to the right microphone signal; and outputting a third signal corresponding to the determined directional information. Another apparatus performs the following: performing at least one of the following: outputting first and second signals as stereo output signals; or converting the first and second signals to mid and side signals, and converting, using directional information for the first and second signals, the mid and side signals to at least one of binaural signals or multi-channel signals, and outputting the corresponding binaural signals or multi-channel signals. Additional apparatus, program products, and methods are disclosed.

Abstract: An apparatus creates first data stream(s) by processing first audio signal(s) and creates second data stream(s) by processing second audio signal(s). The processing includes detecting phase information from at least one of the second audio signal(s) so as to eliminate the phase information. The second data stream(s) are created without the phase information from the at least one second audio signal. The first and second data streams are output. Another apparatus receives first data stream(s) including first audio signal(s) and receives second data stream(s) including second audio signal(s). The second audio signal(s) include at least one second audio signal where phase information has been eliminated. Phase information is detected from one of a selected first audio signal or a selected second audio signal and is added into the at least one second audio signal. Output audio is rendered using the first and second audio signal(s).

Abstract: In accordance with an example embodiment of the present invention, an apparatus is disclosed. The apparatus includes a camera system and an optimization system. The optimization system is configured to communicate with the camera system. At least one microphone is connected to the optimization system. The optimization system is configured to adjust a beamform of the at least one microphone based, at least in part, on camera focus information of the camera system.

Abstract: A first apparatus performs the following: determining, using at least two microphone signals corresponding to left and right microphone signals and using at least one further microphone signal, directional information of the left and right microphone signals; outputting a first signal corresponding to the left microphone signal; outputting a second signal corresponding to the right microphone signal; and outputting a third signal corresponding to the determined directional information. Another apparatus performs the following: performing at least one of the following: outputting first and second signals as stereo output signals; or converting the first and second signals to mid and side signals, and converting, using directional information for the first and second signals, the mid and side signals to at least one of binaural signals or multi-channel signals, and outputting the corresponding binaural signals or multi-channel signals. Additional apparatus, program products, and methods are disclosed.

Abstract: Techniques are presented that include determining, using signals captured from two or more microphones configured to detect an acoustic signal from one or more sound sources, one or more prominent sound sources based on the one or more sound sources. The techniques also include determining one or more directions relative to a position of one or more of the two or more microphones for prominent sound source(s). The techniques further include outputting information suitable to be viewed on a display, the information providing for the prominent sound source(s) a visual effect indicating at least in part the one or more directions, relative to a position of one or more of the microphones, of the prominent sound source(s) in the acoustic signal. The information and the corresponding visual effect(s) may be presented on a display, e.g., as part of a screensaver.

Abstract: Techniques are presented for creating multichannel output signals from input audio signals. A first signal is determined based on a number of subbands into which the input audio signals are divided and based at least in part on a directional estimation wherein the subbands having dominant sound source directions are emphasized relative to subbands having directional estimates that deviate from directional estimates of the dominant sound source directions. A second signal is determined based on the number of subbands wherein an ambient component is introduced to create a perception of an externalization for a sound image. A resultant audio signal is created using the first and second signals. The resultant audio signal is one of a number of multichannel signals. Additionally, it is determined whether binaural audio output or multichannel audio output (or both) is to be output, and the appropriate number of audio output signals are determined and output.

Abstract: A method includes, for each of a number of subbands of a frequency range and for at least first and second frequency-domain signals that are frequency-domain representations of corresponding first and second audio signals: determining a time delay of the first frequency-domain signal that removes a time difference between the first and second frequency-domain signals in the subband. The method includes forming a first resultant signal including, for each of the number of subbands, a sum of one of the first or second frequency-domain signals shifted by the time delay and of the other of the first or second frequency-domain signals; and forming a second resultant signal including, for each of the number of subbands, a difference between the shifted one of the first or second frequency-domain signals and the other of the first or second frequency-domain signals. Apparatus and program products are also disclosed.