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Electrical Audio Signal Processing Systems And Devices > Binaural And Stereophonic > Quadrasonic > 4-2-4 > > With Encoder With EncoderWith Encoder 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.10/04/07 - 20070230710 - Method, device, encoder apparatus, decoder apparatus and audio system A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (Lo, R0). A first signal and a third signal are added in order to ... 09/06/07 - 20070206816 - 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 - 20070206815 - 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 ... 07/26/07 - 20070172071 - Complex transforms for multi-channel audio An audio encoder encodes a combined channel (e.g., a sum channel) for a group of plural physical audio channels. The encoder determines plural parameters for representing individual physical channels of the group as modified versions of the encoded combined channel. The plural parameters comprise ratios of power in each individual ... 07/19/07 - 20070165869 - Support of a multichannel audio extension The invention relates to methods and units supporting a multichannel audio extension. In order to allow an efficient extension requiring a low computational complexity, it is proposed that at an encoding end, at least state information is provided as side information for a provided mono audio signal (M) generated out ... 06/21/07 - 20070140499 - Multichannel audio coding Multiple channels of audio are combined either to a monophonic composite signal or to multiple channels of audio along with related auxiliary information from which multiple channels of audio are reconstructed, including improved downmixing of multiple audio channels to a monophonic audio signal or to multiple audio channels and improved ... 03/08/07 - 20070053521 - Audio signal processing apparatus In an audio signal encoding apparatus, a first audio signal and a second audio signal are added into an addition-result signal. The first audio signal is subtracted from the second audio signal to generate a subtraction-result signal. A first difference signal is generated which represents a difference in the addition-result ... 02/15/07 - 20070036360 - Encoding audio signals The encoder transforms the audio signals (x(n),y(n)) from the time domain to audio signal (X(k),Y(k)) in the frequency domain, and determines the cross-correlation function (Ri, Pi) in the frequency domain. A complex coherence value (Qi) is calculated by summing the (complex) cross-correlation function values (Ri, Pi) in the frequency domain. ... 01/11/07 - 20070009105 - Apparatus and method of encoding and decoding audio signal In one embodiment, at least first and second channels in a frame of the audio signal are independently subdivided into blocks if the first and second channels are not correlated with each other. The first and second channels are corresponding subdivided into blocks such that the lengths of the blocks ... 11/16/06 - 20060256972 - Method and apparatus for providing a motion signal with a sound signal using an existing sound signal encoding format A method for providing a motion signal with a sound signal using an existing sound signal encoding format. The method comprises providing the motion signal, providing the sound signal, inserting the motion signal in an available data field provided in the existing encoding algorithm, encoding the sound signal with the ... 11/16/06 - 20060256971 - Method for deciding time boundary for encoding spectrum envelope and frequency resolution A frame type for a current SBR frame is determined according to a type of end border of a previous frame, as well as presence of a transient in the current SBR frame. A start border is determined according to the end border of the previous SBR frame. For a ... 10/19/06 - 20060233380 - Multi-channel hierarchical audio coding with compact side information A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel ... 10/19/06 - 20060233379 - Adaptive residual audio coding An audio signal having at least two channels can be efficiently down-mixed into a downmix signal and a residual signal, when the down-mixing rule used depends on a spatial parameter that is derived from the audio signal and that is post-processed by a limiter to apply a certain limit to ... 09/07/06 - 20060198528 - Interactive content sound system A sound encoding and decoding technique for interactive content according to the present disclosure provides additional sound channels encoded in real time from 3D audio vector and level information. The additional channels are encoded into the native sound channel format for compatibility with legacy equipment. Decoding equipment compatible with the ... 08/03/06 - 20060171542 - Coding of main and side signal representing a multichannel signal The present invention relates to a method of encoding a main and a side signal that are generated by the first step of parametric stereo encoding. when encoding according to the present invention, firstly, the relation between the power spectral energies of the main and the side signal is kept ... 07/27/06 - 20060165238 - Method for coding and decoding the wideness of a sound source in an audio scene A parametric description describing the wideness of a non-point sound source is generated and linked with the audio signal of said sound source. A presentation of said non-point sound source by multiple decorrelated point sound sources at different positions is defined. Different diffuseness algorithms are applied for ensuring a decorrelation ... 07/13/06 - 20060153392 - Method and apparatus for encoding and decoding multi-channel signals A method of encoding multi-channel signals having two or more channels into a first signal and a second signal, and an apparatus to perform the method, the method including generating the first signal by performing a first operation using a first channel signal in the multi-channel signals; and generating the ... 07/06/06 - 20060147048 - Audio coding Parametric stereo coders use perceptually relevant parameters of the input signal to describe spatial properties. One of these parameters is the phase difference between the input signals (ITD or IPD). This time difference only determines the relative time difference between the input signals, without any information about how these time ... 07/06/06 - 20060147047 - Coding an audio signal In the method of coding the audio signal, the values of first parameters (P1,1), which represent aspects of the audio signal at a first instant (ti), are calculated to obtain first calculated values (A1,i). The values of second parameters P2,i), which represent the aspects of the audio signal at a ... 06/01/06 - 20060115092 - Encoding device and decoding device The present invention relates to an encoding device for saving the number of bits of codes. In step S11, the differential value between a normalization coefficient Bi to be encoded and a normalization coefficient Bi-1 for an encoding unit Ai-1 in a band adjacent to the lower side of an ... 04/27/06 - 20060088168 - Multichannel spectral vector 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 ... 04/20/06 - 20060083385 - Individual channel shaping for bcc schemes and the like At an audio encoder, cue codes are generated for one or more audio channels, wherein an envelope cue code is generated by characterizing a temporal envelope in an audio channel. At an audio decoder, E transmitted audio channel(s) are decoded to generate C playback audio channels, where C>E≧1. Received cue ... 04/20/06 - 20060083384 - Amplitude and phase compensator for btsc encoder A BTSC encoder includes a sum channel (L+R), a difference channel (L−R), and one or more of a phase compensator and an amplitude compensator. The sum channel (L+R) has a L audio input for receiving a digital L audio signal, a right (R) audio input for receiving a digital R ... 03/16/06 - 20060056640 - Configurable recursive digital filter for processing television audio signals A television audio signal encoder includes a device that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The device also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes ... 03/02/06 - 20060045277 - Multichannel spectral mapping audio encoding apparatus and method with dynamically varying mapping coefficients 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 ... 02/02/06 - 20060023891 - Efficient and scalable parametric stereo coding for low bitrate audio coding applications The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, which are transmitted and subsequently used for control of a stereo generator at the decoder ... 01/19/06 - 20060013405 - Multichannel audio data encoding/decoding method and apparatus A multichannel audio data encoding and/or decoding method and apparatus. The encoding method includes: encoding mono and/or stereo audio data; and encoding extended multichannel audio data other than the mono and/or stereo audio data. The decoding method includes: decoding mono and/or stereo audio data; examining whether there is extended multichannel ... 11/24/05 - 20050259828 - Multi-channel compatible stereo recording An encoder for mixing a plurality of independent mono audio channels into a stereo recording and generating a restricted set of additional parameters used to master an audio track of a storage device is described. The plurality of independent mono audio channels are constructed such that the storage device can ... 10/20/05 - 20050232433 - Configurable filter for processing television audio signals A television audio signal encoder includes a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes ... 10/13/05 - 20050226426 - Parametric multi-channel audio representation Multi-channel audio signals are coded into a monaural audio signal and information allowing to recover the multi-channel audio signal from the monaural audio signal and the information. The information is generated by determining a first portion of the information for a first frequency region of the multi-channel audio signal, and ... 09/08/05 - 20050195981 - Frequency-based coding of channels in parametric multi-channel coding systems For a multi-channel audio signal, parametric coding is applied to different subsets of audio input channels for different frequency regions. For example, for a 5.1 surround sound signal having five regular channels and one low-frequency (LFE) channel, binaural cue coding (BCC) can be applied to all six audio channels for ... 07/21/05 - 20050157884 - Audio encoding apparatus and frame region allocation circuit for audio encoding apparatus An audio encoding apparatus for stereo audio encoding an L-channel PCM signal and an R-channel PCM signal efficiently allocates encoded data of the L-channel and the R-channel without varying an existing format and performs MS stereo on/off control and controls of a bit allocation amount or a frame region for ... 06/30/05 - 20050141722 - Signal processing Sum/difference coding of a compatible signal, typically in case of a dominant centre signal or dominant surround situation of a multi-channel audio stream to be decoded by both a stereo decoder and by a multi-channel decoder, to provide improved encoding of multiple input signals employing compatibility matrixing. ... 06/23/05 - 20050135630 - Btsc encoder and integrated circuit A BTSC encoder includes dual channel ADC, sync separator, audio processor, filtering device, and a composite audio signal generating device. The filtering device includes a first filter for providing a filtered L+R signal, and a second filter for providing at least one of: i) a filtered and combined pilot and ... ### FreshPatents.com Support |