Patents by Inventor Renato Pellegrini

Renato Pellegrini has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210195361
    Abstract: Binaurally reproduced audio signals are often perceived as unnatural. For example, speech intelligibility may be reduced. For improving the spatial reproduction of audio signals, the invention enables binaurally virtualizing a single-channel audio signal only partially by filtering. A degree of binaural virtualization for the audio signal based on one or more processing parameters (PC, PFC, PTC) may be freely chosen. A control allows a smooth transition between a completely binaural virtualization based on HRTF and a non-binaural virtualization corresponding to panning. A first range (B1) starts with a completely binaural virtualization and the HRTFs that are commonly used for this. In this range, the HRTFs are modified by scaling and by approaching them to the gain factors of the panning while decreasing a degree of binaural virtualization. In a subsequent second range (B2) that leads to a completely panning-like virtualization, the resulting phase is reduced, or adjusted to the panning phase of 0°.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Applicant: Sennheiser electronic GmbH & Co. KG
    Inventor: Renato Pellegrini
  • Publication number: 20210185433
    Abstract: In order for a microphone array to capture sound emanating from a moving object whose exact position is unknown at the time of arrival of the sound signal, a method for controlling the microphone array comprises steps of receiving position information that includes a position (pTR) and a velocity of the moving object from a tracking system, receiving a plurality of microphone signals that comprise sound of a sound event emanating from the moving object from a plurality of microphone capsules, calculating a directional characteristic from the plurality of microphone signals, wherein the directional characteristic is based on beamforming according to the position information and wherein an audio output signal is generated that includes the sound from a preferred direction of high sensitivity, and providing the audio output signal at an output.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 17, 2021
    Applicant: Sennheiser electronic GmbH & Co. KG
    Inventors: Alexander Krüger, Renato Pellegrini
  • Patent number: 8437485
    Abstract: A method and a device for sound field reproduction from a first audio input signal uses a plurality of loudspeakers for synthesizing a sound field within a preferred listening area in which none of the loudspeakers are located and therefore described as emanating from a virtual source. The method further includes the steps of calculating a plurality of positioning filter coefficients using virtual source description data and loudspeaker description data according to a sound field reproduction technique; and modifying the first audio input signal using the positioning filter coefficients to form second audio input signals. A loudspeaker ranking of the importance of each loudspeaker for the synthesis of the sound field within the preferred listening area is therefore defined. Then, second audio input signals are modified according to the loudspeaker ranking to form third audio input signals. Finally, the loudspeakers are alimented with the third audio input signals which synthesize a sound field.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: May 7, 2013
    Assignee: Sonicemotion AG
    Inventors: Clemens Kuhn-Rahloff, Etienne Corteel, Renato Pellegrini, Matthais Rosenthal
  • Patent number: 8270642
    Abstract: The invention relates to a method and device for reproducing sound from a first input audio signal (1) using a plurality of first loudspeakers (4) and producing a target binaural impression to a listener (6) within a listening area (55).
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: September 18, 2012
    Assignee: SonicEmotion AG
    Inventors: Clemens Kuhn, Renato Pellegrini, Matthias Rosenthal, Etienne Corteel
  • Publication number: 20100296678
    Abstract: The invention relates to a method and a device for sound field reproduction from a first audio input signal (1) using a plurality of loudspeakers (2) aiming at synthesizing a sound field within a preferred listening area (6) in which none of the loudspeakers (2) are located, said being described as emanating from a virtual source (5). The method further comprises steps of calculating a plurality of positioning filters (7) using virtual source description data (8) and loudspeaker description data (9) according to a sound field reproduction technique, and modifying the first audio input signal (1) using the positioning filter coefficients (7) to form second audio input signals (3). Therefore, a loudspeaker ranking (11) of the importance of each loudspeaker (2) for the synthesis of the sound field within the preferred listening area (6) is defined. Then, second audio input signals (6) are modified according to the loudspeaker ranking (11) to form third audio input signals (12).
    Type: Application
    Filed: October 27, 2008
    Publication date: November 25, 2010
    Inventors: Clemens Kuhn-Rahloff, Etienne Corteel, Renato Pellegrini, Matthias Rosenthal
  • Publication number: 20080025534
    Abstract: The invention relates to a method and device for reproducing sound from a first input audio signal (1) using a plurality of first loudspeakers (4) and producing a target binaural impression to a listener (6) within a listening area (55).
    Type: Application
    Filed: May 14, 2007
    Publication date: January 31, 2008
    Applicant: SonicEmotion AG
    Inventors: Clemens Kuhn, Renato Pellegrini, Matthias Rosenthal, Etienne Corteel
  • Patent number: 7272073
    Abstract: The invention relates to a method and device for generating data about the mutual position of at least three acoustic transducers. The aim of the invention is to make it possible to continuously measure and calculate the mutual position of at least three acoustic transducers, particularly the rotation and the position of a human head wearing headphones within a room without using any additional transmitter element on the head, headphone, or body of the listener, during audio playback. This aim is achieved by connecting the acoustic transducers to a digitally operated system which comprises an output path emitting audio signals to first and second acoustic transducers, an input path receiving audio signals from the third acoustic transducer, an audio signal source that is connected to the output path, an ultrasound generator that is connected to the output path, and an information generator which indicates a position and is connected to the input path.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: September 18, 2007
    Assignee: SonicEmotion AG
    Inventors: Renato Pellegrini, Matthias Rosenthal
  • Publication number: 20050226437
    Abstract: The invention relates to a method and device for generating data about the mutual position of at least three acoustic transducers. The aim of the invention is to make it possible to continuously measure and calculate the mutual position of at least three acoustic transducers, particularly the rotation and the position of a human head wearing headphones within a room without using any additional transmitter element on the head, headphone, or body of the listener, during audio playback. This aim is achieved by connecting the acoustic transducers to a digitally operated system which comprises an output path emitting audio signals to first and second acoustic transducers, an input path receiving audio signals from the third acoustic transducer, an audio signal source that is connected to the output path, an ultrasound generator that is connected to the output path, and an information generator which indicates a position and is connected to the input path.
    Type: Application
    Filed: May 20, 2003
    Publication date: October 13, 2005
    Applicant: SonicEmotion AG
    Inventors: Renato Pellegrini, Matthias Rosenthal