Patents Assigned to Waves Audio Ltd.
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Patent number: 9818424Abstract: A method, and one or more non-transitory computer-readable media storing instructions, and a device for removal of unwanted components in an audio signal, the device comprising a processor, coupled to memory, configured to receive reference and processed inputs into memory where the processed input is a result of a reduction process of unwanted components of the audio signal, estimate envelope values for processed and reference inputs at a plurality of time and frequency instances, for each time and frequency instance: compute a first gain in relation to a ratio of the estimated envelope value of the processed input to the estimated envelope value of the reference input, apply a nonlinear process to said first gain to produce a second gain, compute an output gain as the ratio between second gain and first gain and, apply the output gain to processed input, thereby producing a filtered output with unwanted components suppressed.Type: GrantFiled: May 5, 2014Date of Patent: November 14, 2017Assignee: WAVES AUDIO LTD.Inventors: Itai Neoran, Shmuel Nedjar, Roy Yam
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Patent number: 8654990Abstract: A system and method for use in filtering of an acoustic signal are provided for producing an output signal of attenuated amount of diffuse sound in accordance with predetermined parameters of desired output directional response and required attenuation of diffuse sound. The system includes a filtration module and a filter generation module including a directional analysis module and filter construction module.Type: GrantFiled: February 9, 2010Date of Patent: February 18, 2014Assignee: Waves Audio Ltd.Inventor: Christof Faller
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Patent number: 8634568Abstract: A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.Type: GrantFiled: December 13, 2010Date of Patent: January 21, 2014Assignee: Waves Audio Ltd.Inventors: Itai Neoran, Meir Shashoua, Yoad Nevo
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Patent number: 8605914Abstract: In accordance with some embodiments of the present invention there is provided a system, a method and a circuit for processing a stereo audio signal. According to some embodiments, the system for processing a stereo audio signal may include an audio processing circuit. The audio processing module or circuit may be operatively connected to an audio input interface and to an output audio interface. Through the audio input interface, the audio processing circuit may be adapted for receiving a 2-channels stereo audio signal. The audio processing module may be adapted for determining an output mono audio signal representing the center sound and a stereo audio signal representing the stereo sound without the center. Through the output interface the audio processing circuit may provide each of an output mono audio signal representing the center sound and a stereo audio signal representing the stereo sound without the center.Type: GrantFiled: April 19, 2009Date of Patent: December 10, 2013Assignee: Waves Audio Ltd.Inventor: Itai Neoran
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Apparatus and method for classification and segmentation of audio content, based on the audio signal
Patent number: 8428949Abstract: An apparatus for classifying an input audio signal into audio contents of a first and second class, comprising an audio segmentation module adapted to segment said input audio signal into segments of a predetermined length; a feature computation module adapted to calculate for the segments features characterizing said audio input signal; a threshold comparison module adapted to generate a feature vector for each of said one or more segments based on a plurality of predetermined thresholds, the thresholds including for each of the audio contents of the first class and of the second class a substantially near certainty threshold, a substantially high certainty threshold, and a substantially low certainty threshold; and a classification module adapted to analyze the feature vector and classify each one of said one or more segments as audio contents of the first class, of the second class, or as non-decisive audio contents.Type: GrantFiled: June 30, 2009Date of Patent: April 23, 2013Assignee: Waves Audio Ltd.Inventors: Itai Neoran, Yizhar Lavner, Dima Ruinskiy -
Publication number: 20110286609Abstract: A system and method for use in filtering of an acoustic signal are provided for producing an output signal of attenuated amount of diffuse sound in accordance with predetermined parameters of desired output directional response and required attenuation of diffuse sound. The system includes a filtration module and a filter generation module including a directional analysis module and filter construction module.Type: ApplicationFiled: February 9, 2010Publication date: November 24, 2011Applicant: WAVES AUDIO LTD.Inventor: Christof Faller
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Publication number: 20110081025Abstract: A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.Type: ApplicationFiled: December 13, 2010Publication date: April 7, 2011Applicant: Waves Audio Ltd.Inventors: Itai Neoran, Meir Shashoua, Yoad Nevo
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Publication number: 20110038485Abstract: In accordance with some embodiments of the present invention there is provided a system, a method and a circuit for processing a stereo audio signal. According to some embodiments, the system for processing a stereo audio signal may include an audio processing circuit. The audio processing module or circuit may be operatively connected to an audio input interface and to an output audio interface. Through the audio input interface, the audio processing circuit may be adapted for receiving a 2-channels stereo audio signal. The audio processing module may be adapted for determining an output mono audio signal representing the center sound and a stereo audio signal representing the stereo sound without the center. Through the output interface the audio processing circuit may provide each of an output mono audio signal representing the center sound and a stereo audio signal representing the stereo sound without the center.Type: ApplicationFiled: April 19, 2009Publication date: February 17, 2011Applicant: WAVES AUDIO LTD.Inventor: Itai Neoran
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Patent number: 7876909Abstract: A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.Type: GrantFiled: July 13, 2005Date of Patent: January 25, 2011Assignee: Waves Audio Ltd.Inventors: Itai Neoran, Meir Shashoua, Yoad Nevo
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APPARATUS AND METHOD FOR CLASSIFICATION AND SEGMENTATION OF AUDIO CONTENT, BASED ON THE AUDIO SIGNAL
Publication number: 20100004926Abstract: An apparatus for classifying an input audio signal into audio contents of a first and second class, comprising an audio segmentation module adapted to segment said input audio signal into segments of a predetermined length; a feature computation module adapted to calculate for the segments features characterizing said audio input signal; a threshold comparison module adapted to generate a feature vector for each of said one or more segments based on a plurality of predetermined thresholds, the thresholds including for each of the audio contents of the first class and of the second class a substantially near certainty threshold, a substantially high certainty threshold, and a substantially low certainty threshold; and a classification module adapted to analyze the feature vector and classify each one of said one or more segments as audio contents of the first class, of the second class, or as non-decisive audio contents.Type: ApplicationFiled: June 30, 2009Publication date: January 7, 2010Applicant: WAVES AUDIO LTD.Inventors: Itai NEORAN, Yizhar LAVNER, Dima RUINSKIY -
Patent number: 7391875Abstract: A method for processing audio signal that includes receiving a plurality of digital audio signals and calculating signal levels of them. The next step is calculating smooth attenuation signal for each one of the input audio signals. The smooth attenuation signals are calculated according to the signal levels and smoothing criteria, such that the mixing of signals that include the input audio signals multiplied by their respective smooth attenuation signals is peak limited by a given threshold level.Type: GrantFiled: June 21, 2004Date of Patent: June 24, 2008Assignee: Waves Audio Ltd.Inventor: Meir Shashoua
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Publication number: 20060018486Abstract: A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.Type: ApplicationFiled: July 13, 2005Publication date: January 26, 2006Applicant: Waves Audio Ltd.Inventors: Itai Neoran, Meir Shashoua, Yoad Nevo
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Publication number: 20050281418Abstract: A method for processing audio signal that includes receiving a plurality of digital audio signals and calculating signal levels of them. The next step is calculating smooth attenuation signal for each one of the input audio signals. The smooth attenuation signals are calculated according to the signal levels and smoothing criteria, such that the mixing of signals that include the input audio signals multiplied by their respective smooth attenuation signals is peak limited by a given threshold level.Type: ApplicationFiled: June 21, 2004Publication date: December 22, 2005Applicant: WAVES AUDIO LTD.Inventor: Meir Shashoua
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Publication number: 20050265558Abstract: Some embodiments of the present invention relate to a method and a circuit for processing an audio signal. In accordance with some embodiments of the present invention, there is provided an audio processing circuit including a first signal path, a second signal path and an output adder. The first signal path may be configured to allow an input signal to pass through the audio processing circuit substantially unaffected. The second signal path may include a reverberation filter and a cross-talk cancellation filter adapted to receive an output of the reverberation filter directly or indirectly. The audio processing circuit may further include an output adder, and the output adder may be adapted to receive and combine the output of the direct signal path and the output of the second signal path.Type: ApplicationFiled: May 17, 2005Publication date: December 1, 2005Applicant: Waves Audio Ltd.Inventor: Itai Neoran