REGISTER now for FREE 
|
FREE patent keyword monitoring and additional FREE benefits. REGISTER now for FREE
|
|
|
Electrical Audio Signal Processing Systems And Devices > Binaural And Stereophonic > Quadrasonic > Matrix MatrixMatrix patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/15/07 - 20070263877 - Multichannel spectral mapping audio apparatus and method A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other ... 09/13/07 - 20070211905 - Multichannel spectral mapping audio apparatus and method A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other ... 09/06/07 - 20070206812 - Multichannel spectral mapping audio apparatus and method A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other ... 06/21/07 - 20070140498 - Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener An active audio matrix decoding method and apparatus to generate multi-channel audio signals from a stereo channel audio signal. The method includes extracting characteristics of a plurality of speaker signals and angles of each of a plurality of multi-channel speakers from arbitrary signals reproduced by the multi-channel speakers, decoding a ... 05/17/07 - 20070110250 - Transaural stereo device A method of creating an impression of sound from an imaginary source to a listener. The method includes the step of determining an acoustic matrix for an actual set of speakers at an actual location relative to the listener and the step of determining an acoustic matrix for transmission of ... 03/29/07 - 20070071247 - Slot position coding of syntax of spatial audio application Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., ... 07/27/06 - 20060165237 - Methods for improved performance of prediction based multi-channel reconstruction For a multi-channel reconstruction of audio signals based on at least one base channel, an energy measure is used for compensating energy losses due to an predictive upmix. The energy measure can be applied in the encoder or the decoder. Furthermore, a decorrelated signal is added to output channels generated ... 06/22/06 - 20060133618 - Stereo compatible multi-channel audio coding A parametric representation of a multi-channel audio signal having parameters suited to be used together with a monophonic downmix signal to calculate a reconstruction of the multi-channel audio signal can efficiently be derived in a stereo-backwards compatible way when a parameter combiner is used to generate the parametric representation by ... 12/15/05 - 20050276420 - Audio channel spatial translation Using an M:N variable matrix, M audio input signals, each associated with a direction, are translated to N audio output signals, each associated with a direction, wherein N is larger than M, M is two or more and N is a positive integer equal to three or more. The variable ... ### FreshPatents.com Support |