METHOD TO PROCESS AN AUDIO SIGNAL WITH A DYNAMIC COMPRESSIVE SYSTEM

    公开(公告)号:US20210194449A1

    公开(公告)日:2021-06-24

    申请号:US17081059

    申请日:2020-10-27

    IPC分类号: H03G7/00 H03G9/02

    摘要: Disclosed is a method and apparatus for determining one or more operation parameters for a dynamic range compression (DRC) system. The method comprises obtaining, as an input, a parameter indicative of a hearing ability of a user, the parameter relating to a first difference in sound intensity between a maskee at a first frequency and a masker at a second frequency, determining a target value for the parameter, and determining the one or more operation parameters such that a second difference in sound intensity after sound intensity modification by the DRC (between sound intensity of the maskee of the masker) corresponds to the target value for the parameter. The operation parameters are determined such that a dependence of the second difference in sound intensity on the sound intensity of the maskee is minimized for a given range of sound intensities of the maskee.

    Systems and methods for identifying and remediating sound masking

    公开(公告)号:US10972065B2

    公开(公告)日:2021-04-06

    申请号:US16903045

    申请日:2020-06-16

    申请人: iZotope, Inc.

    摘要: Some embodiments of the invention are directed to enabling a user to easily identify the frequency range(s) at which sound masking occurs, and addressing the masking, if desired. In this respect, the extent to which a first stem is masked by one or more second stems in a frequency range may depend not only on the absolute value of the energy of the second stem(s) in the frequency range, but also on the relative energy of the first stem with respect to the second stem(s) in the frequency range. Accordingly, some embodiments are directed to modeling sound masking as a function of the energy of the stem being masked and of the relative energy of the masked stem with respect to the masking stem(s) in the frequency range, such as by modeling sound masking as loudness loss, a value indicative of the reduction in loudness of a stem of interest caused by the presence of one or more other stems in a frequency range.

    Distortion sensing, prevention, and distortion-aware bass enhancement

    公开(公告)号:US10818310B2

    公开(公告)日:2020-10-27

    申请号:US16782574

    申请日:2020-02-05

    申请人: DTS, inc.

    摘要: Systems and methods to provide distortion sensing, prevention, and/or distortion-aware bass enhancement in audio systems can be implemented in a variety of applications. Sensing circuitry can generate statistics based on an input signal received for which an acoustic output is generated. In various embodiments, the statistics can be used such that a multi-notch filter can be used to provide input to a speaker to generate the acoustic output. In various embodiments, the statistics from the sensing circuitry can be provided to a bass parameter controller coupled to bass enhancement circuitry to operatively provide parameters to the bass enhancement circuitry. The bass enhancement circuitry can provide a bass enhanced signal for generation of the acoustic output, based on the parameters. Various combinations of a multi-notch filter and bass enhancement circuitry using statistics from sensing circuitry can be implemented to provide an enhanced acoustic output. Additional apparatus, systems, and methods are disclosed.

    DISTORTION SENSING, PREVENTION, AND DISTORTION-AWARE BASS ENHANCEMENT

    公开(公告)号:US20200176011A1

    公开(公告)日:2020-06-04

    申请号:US16782574

    申请日:2020-02-05

    申请人: DTS, Inc.

    摘要: Systems and methods to provide distortion sensing, prevention, and/or distortion-aware bass enhancement in audio systems can be implemented in a variety of applications. Sensing circuitry can generate statistics based on an input signal received for which an acoustic output is generated. In various embodiments, the statistics can be used such that a multi-notch filter can be used to provide input to a speaker to generate the acoustic output. In various embodiments, the statistics from the sensing circuitry can be provided to a bass parameter controller coupled to bass enhancement circuitry to operatively provide parameters to the bass enhancement circuitry. The bass enhancement circuitry can provide a bass enhanced signal for generation of the acoustic output, based on the parameters. Various combinations of a multi-notch filter and bass enhancement circuitry using statistics from sensing circuitry can be implemented to provide an enhanced acoustic output. Additional apparatus, systems, and methods are disclosed.

    Sound processing method
    18.
    发明授权

    公开(公告)号:US10587238B2

    公开(公告)日:2020-03-10

    申请号:US15794300

    申请日:2017-10-26

    申请人: Oeksound Oy

    摘要: The invention is related to sound processing methods, especially to digital sound processing methods. In an embodiment of the invention, the method includes at least the following steps: calculating the magnitude spectrum of a segment of the sound signal, processing of the calculated magnitude spectrum to produce an outline of the spectrum indicating the peaks of the calculated magnitude spectrum, processing said outline to adjust said peaks and surrounding frequency areas of the spectrum, applying a Hilbert transform to said processed outline for forming the complex spectrum of a minimum phase impulse response, and convolving said minimum phase impulse response with said segment of the sound signal for forming a processed output signal segment.

    SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING

    公开(公告)号:US20200007983A1

    公开(公告)日:2020-01-02

    申请号:US16431386

    申请日:2019-06-04

    摘要: A system and method for digital processing including a gain element to process an input audio signal, a high pass filter to then filter the signal and create a high pass signal, a first filter module to filter the high pass signal and create a first filtered signal and a splitter to split the high pass signal into two high pass signals. The first filter module filters one high pass signals before a first compressor modulates the signal or a high pass signal to create a modulated signal. A second filter module filters the modulated signal to create a second filtered signal that is processed by a first processing module including a band splitter that splits the signal into low and high band signals that are then modulated by compressors. A second processing module processes the modulated low and high band signals to create an output signal.