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1.发明授权公开(公告)号：US11948589B2
公开(公告)日：2024-04-02
申请号：US17360605
申请日：2021-06-28
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii , Markus Cremer , Bongjun Kim
CPC classification number: G10L19/0212 , G10L25/51 , G10L19/02 , G10L25/03 , H04H60/58
Abstract: Methods, apparatus and articles of manufacture to identify sources of network streaming services are disclosed. An example method includes receiving a first audio signal that represents a decompressed second audio signal, identifying, from the first audio signal, a parameter of an audio compression configuration used to form the decompressed second audio signal, and identifying a source of the decompressed second audio signal based on the identified audio compression configuration.
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公开(公告)号：US20220208217A1
公开(公告)日：2022-06-30
申请号：US17335657
申请日：2021-06-01
Applicant: Gracenote, Inc.
Inventor： Xiaochen Liu , Joseph P. Renner , Joshua E. Morris , Todd J. Hodges , Robert Coover , Zafar Rafii
IPC: G10L25/90 , G10L19/022 , G06F16/683 , G06F16/632 , G06N20/00 , G06N3/08
Abstract: A cover song identification method implemented by a computing system comprises receiving, by a computing system and from a user device, harmonic pitch class profile (HPCP) information that specifies one or more HPCP features associated with target audio content. A major chord profile feature and a minor chord profile feature associated with the target audio content are derived from the HPCP features. Machine learning logic of the computing system determines, based on the major chord profile feature and the minor chord profile feature, a relatedness between the target audio content and each of a plurality of audio content items specified in records of a database. Each audio content item is associated with cover song information. Cover song information associated with an audio content item having a highest relatedness to the target audio content is communicated to the user device.
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公开(公告)号：US20220208214A1
公开(公告)日：2022-06-30
申请号：US17315820
申请日：2021-05-10
Applicant: Gracenote, Inc.
Inventor： Alexander Berrian , Todd J. Hodges , Robert Coover , Matthew James Wilkinson , Zafar Rafii
IPC: G10L25/54 , G10L19/018 , G10L25/72 , G10L25/27
Abstract: A method implemented by a computing system comprises generating, by the computing system, a fingerprint comprising a plurality of bin samples associated with audio content. Each bin sample is specified within a frame of the fingerprint and is associated with one of a plurality of non-overlapping frequency ranges and a value indicative of a magnitude of energy associated with a corresponding frequency range. The computing system removes, from the fingerprint, a plurality of bin samples associated with a frequency sweep in the audio content.
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公开(公告)号：US11226396B2
公开(公告)日：2022-01-18
申请号：US16455025
申请日：2019-06-27
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to improve detection of audio signatures. An example apparatus includes a TDOA determiner to determine a first time difference of arrival for a first audio sensor of a meter and a second audio sensor of the meter, and a second time difference of arrival for the first audio sensor and a third audio sensor of the meter, a TDOA matcher to determine a match by comparing the first time difference of arrival to a first virtual source time difference of arrival and a second virtual source time difference of arrival, responsive to determining that the first time difference of arrival matches the first virtual source time difference of arrival, identify a first virtual source location as the location of a media presentation device, and remove an audio recording of the second audio sensor to reduce a computational burden on the processor.
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公开(公告)号：US20210160975A1
公开(公告)日：2021-05-27
申请号：US16698697
申请日：2019-11-27
Applicant: Gracenote Inc.
Inventor： Markus Kurt Cremer , Robert Coover , Zafar Rafii , Aneesh Vartakavi , Andreas Schmidt , Todd Hodges
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to adjust device control information. The example apparatus comprises a light drive waveform generator to obtain metadata corresponding to media and generate device control information based on the metadata, the device control information to inform a lighting device to enable consecutive light pulses; an effect engine to apply an attack parameter and a decay parameter to consecutive light pulses corresponding to the device control information, the attack parameter and the decay parameter based on the metadata to affect a shape of the consecutive light pulses; and a color timeline generator to generate color information based on the metadata, the color information to inform the lighting device to change a color state.
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Patent Agency Ranking
公开(公告)号：US10698948B2
公开(公告)日：2020-06-30
申请号：US16403202
申请日：2019-05-03
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii
IPC: G06F17/00 , G06F16/632 , G06F16/61 , G06F16/683 , G06F16/22 , G10L25/18 , G10L25/21 , G10L25/45 , G10L25/54 , G10L25/72
Abstract: In an example context of identifying live audio, an audio processor machine accesses audio data that represents a query sound and creates a spectrogram from the audio data. Each segment of the spectrogram represents a different time slice in the query sound. For each time slice, the audio processor machine determines one or more dominant frequencies and an aggregate energy value that represents a combination of all the energy for that dominant frequency and its harmonics. The machine creates a harmonogram by representing these aggregate energy values at these dominant frequencies in each time slice. The harmonogram thus may represent the strongest harmonic components within the query sound. The machine can identify the query sound by comparing its harmonogram to other harmonograms of other sounds and may respond to a user's submission of the query sound by providing an identifier of the query sound to the user.
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公开(公告)号：US20250157451A1
公开(公告)日：2025-05-15
申请号：US19021910
申请日：2025-01-15
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii
IPC: G10K11/175 , G06F3/16 , G10L25/18
Abstract: Methods and apparatus for harmonic source enhancement are disclosed herein. An example apparatus includes an interface to receive a media signal. The example apparatus also includes a harmonic source enhancer to determine a magnitude spectrogram of audio corresponding to the media signal; generate a time-frequency mask based on the magnitude spectrogram; and apply the time-frequency mask to the magnitude spectrogram to enhance a harmonic source of the media signal.
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公开(公告)号：US12236931B2
公开(公告)日：2025-02-25
申请号：US18499845
申请日：2023-11-01
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii
IPC: H03G5/00 , G06F3/16 , G10K11/175 , G10L25/18 , H04R1/32
Abstract: Methods and apparatus for harmonic source enhancement are disclosed herein. An example apparatus includes an interface to receive a media signal. The example apparatus also includes a harmonic source enhancer to determine a magnitude spectrogram of audio corresponding to the media signal; generate a time-frequency mask based on the magnitude spectrogram; and apply the time-frequency mask to the magnitude spectrogram to enhance a harmonic source of the media signal.
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公开(公告)号：US12232229B2
公开(公告)日：2025-02-18
申请号：US18663841
申请日：2024-05-14
Applicant: Gracenote Inc.
Inventor： Markus Kurt Cremer , Robert Coover , Zafar Rafii , Aneesh Vartakavi , Andreas Schmidt , Todd Hodges
IPC: H05B45/20 , F21S10/02 , H05B47/105 , F21W106/00
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to adjust device control information. The example apparatus comprises a light drive waveform generator to obtain metadata corresponding to media and generate device control information based on the metadata, the device control information to inform a lighting device to enable consecutive light pulses; an effect engine to apply an attack parameter and a decay parameter to consecutive light pulses corresponding to the device control information, the attack parameter and the decay parameter based on the metadata to affect a shape of the consecutive light pulses; and a color timeline generator to generate color information based on the metadata, the color information to inform the lighting device to change a color state.
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公开(公告)号：US12105754B2
公开(公告)日：2024-10-01
申请号：US18406840
申请日：2024-01-08
Applicant: Gracenote, Inc.
Inventor： Zafar Rafii , Prem Seetharaman
CPC classification number: G06F16/686 , G06F16/61 , G06F17/14 , G10L25/27 , G10L25/51
Abstract: Example systems and methods are audio identification based on data structure are disclosed. An example apparatus includes memory, and one or more processors to execute instructions to execute a constant Q transform on query time slices of query audio, binarize the constant Q transformed query time slices, execute a two-dimensional Fourier transform on query time windows within the binarized and constant Q transformed query time slices to generate two-dimensional Fourier transforms of the query time windows, sequentially order the two-dimensional Fourier transforms in a query data structure, and identify the query audio as a cover rendition of reference audio based on a comparison between the query data structure and a reference data structure associated with the reference audio.
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