公开(公告)号：DE102020125551A1

公开(公告)日：2021-04-08

申请号：DE102020125551

申请日：2020-09-30

Applicant: CLARION CO LTD

Inventor： FUJITA YASUHIRO ,  HASHIMOTO TAKESHI

IPC: G10K15/04 ,  B60Q5/00

Abstract: Eine Schwingungssignalerzeugungsvorrichtung (100) und ein Schwingungssignalerzeugungsprogramm haben das Ziel, dem Nutzer zu ermöglichen, eine geeignete Verbrennungsmotorschwingung wahrzunehmen. Die Schwingungssignalerzeugungsvorrichtung (100) weist ein erstes Sinussignalerzeugungsmittel (90), ein zweites Sinussignalerzeugungsmittel (10) und ein Signalkombinationsmittel (50) auf. Das erste Sinussignalerzeugungsmittel (90) erzeugt ein erstes Sinussignal (S7), basierend auf einer Sinuswelle mit einer vorbestimmten niedrigen Frequenz als Hauptfrequenzkomponente. Das zweite Sinussignalerzeugungsmittel (10) erzeugt ein zweites Sinussignal (S3) basierend auf einer Sinuswelle, die die vorbestimmte niedrige Frequenz als eine Hauptfrequenzkomponente aufweist und durch Ändern der Hauptfrequenzkomponente gemäß einem Zunehmen und Abnehmen einer Verbrennungsmotordrehzahl erhalten wird. Das Signalkombinationsmittel (50) erzeugt ein Schwingungssignal (S 10), um ein Schwingungserzeugungsmittel (303), das sich in einem Sitz befindet, zu veranlassen, eine Schwingung zu erzeugen, indem das erste Sinussignal (S7) und das zweite Sinussignal (S3) kombiniert werden.

公开(公告)号：EP3107307A4

公开(公告)日：2017-10-04

申请号：EP15774304

申请日：2015-02-20

Applicant: CLARION CO LTD

Inventor： HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO ,  FUKUE KAZUTOMO

IPC: H04R1/00 ,  H04R3/00 ,  H04R3/04 ,  H04R5/02

CPC classification number: H04R3/04 ,  B06B1/0238 ,  B06B2201/52 ,  B06B2201/70 ,  H04R1/00 ,  H04R1/025 ,  H04R3/00 ,  H04R5/023 ,  H04R29/001 ,  H04R2201/028 ,  H04R2499/13

Abstract: The present invention provides a vibration audio system for transmitting an audio signal outputted from a sound source to a listener in the form of vibration while reducing output level of the signal and power consumption. The system includes an envelope detection unit (204) for detecting an envelope signal of the audio signal outputted from a sound source, a vibration transmission member for allowing the listener to perceive vibration of a low-frequency sound outputted from a low-frequency output speaker that outputs audio signals, and a frequency conversion unit (205) for generating an audio signal frequency-converted on the basis of resonant frequencies by multiplying the envelope signal by sine waves having the same frequencies as resonance frequencies obtained from an impulse response of the low-frequency output speaker disposed in the vibration transmission member. The audio signal frequency-converted by the frequency conversion unit (205) is outputted from the low-frequency output speaker.

Abstract translation: 本发明提供了一种振动音频系统，用于以振动的形式将从声源输出的音频信号传输给收听者，同时降低信号的输出电平和功耗。 该系统包括：包络检测单元（204），用于检测从声源输出的音频信号的包络信号;振动传输构件，用于使听者感知从低频输出扬声器输出的低频声音的振动 ，其输出音频信号;以及频率转换单元（205），其用于通过将包络信号乘以具有与从低频的脉冲响应获得的谐振频率相同的频率的正弦波，来生成基于谐振频率进行频率转换的音频信号 频率输出扬声器，其设置在振动传递构件中。 由频率转换单元（205）进行频率转换的音频信号从低频输出扬声器输出。

公开(公告)号：EP3166107A4

公开(公告)日：2018-01-03

申请号：EP15814179

申请日：2015-06-22

Applicant: CLARION CO LTD

Inventor： HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO ,  FUKUE KAZUTOMO ,  KUMAGAI TAKATOMI

IPC: G10L21/0388 ,  G10L21/0232

CPC classification number: G10L21/0332 ,  G10L21/0232 ,  G10L21/0388

Abstract: There is provided a signal processing device, comprising: a frequency detecting means that detects a frequency satisfying a predetermined condition from an audio signal; an offset means that gives an offset to the detected frequency by the frequency detecting means in accordance with a frequency property at the detected frequency or around the detected frequency; a reference signal generating means that generates a reference signal by extracting a signal from the audio signal based on the detected frequency offset by the offset means; an interpolation signal generating means that generates an interpolation signal based on the generated reference signal; and a signal synthesizing means that performs high band interpolation by synthesizing the generated interpolation signal and the audio signal.

公开(公告)号：EP3007171A4

公开(公告)日：2017-03-08

申请号：EP14804912

申请日：2014-05-26

Applicant: CLARION CO LTD

Inventor： HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO ,  FUKUE KAZUTOMO

IPC: G10L21/0388

CPC classification number: G10L19/0204 ,  G10L19/032 ,  G10L21/0388 ,  G10L25/18

Abstract: A signal processing device comprises: a band detecting means for detecting a frequency band which satisfies a predetermined condition from an audio signal; a reference signal generating means for generating a reference signal in accordance with a detection band by the band detecting means; a reference signal correcting means for correcting the generated reference signal on the basis of a frequency characteristic thereof; a frequency band extending means for extending the corrected reference signal up to a frequency band higher than the detection band; an interpolation signal generating means for generating an interpolation signal by weighting each frequency component within the extended frequency band in accordance with a frequency characteristic of the audio signal; and a signal synthesizing means for synthesizing the generated interpolation signal with the audio signal.

Abstract translation: 一种信号处理装置，包括：频带检测装置，用于从音频信号中检测满足预定条件的频带; 参考信号发生装置，用于根据频带检测装置的检测频带产生参考信号; 参考信号校正装置，用于根据其频率特性校正所产生的参考信号; 频带扩展装置，用于将校正的参考信号扩展到高于检测频带的频带; 插值信号生成装置，用于根据音频信号的频率特性通过对扩展频带内的每个频率分量进行加权来生成插值信号; 以及信号合成装置，用于合成所产生的内插信号与音频信号。

公开(公告)号：EP3110169A4

公开(公告)日：2017-10-11

申请号：EP15749495

申请日：2015-02-04

Applicant: CLARION CO LTD

Inventor： FUJITA YASUHIRO ,  HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUKUE KAZUTOMO

IPC: H04R3/04 ,  G10L21/0364

CPC classification number: H04R29/001 ,  H04R3/007 ,  H04R3/04 ,  H04R2227/007 ,  H04R2499/13

Abstract: An acoustic processing device comprises: a resonant band detecting means that detects a resonant band of sound output from a speaker based on a measurement result of a predetermined measurement signal reproduced through the speaker; an analyzing means that analyzes the measurement result of the predetermined measurement signal; a control parameter generating means that generates a control parameter for controlling the resonant band detected by the resonant band detecting means based on an analysis result by the analyzing means; and an audio signal controlling means that controls an audio signal input from a predetermined audio signal reproducing device based on the control parameter generated by the control parameter generating means such that a resonant band component of reproduced sound of the audio signal is suppressed to be short on a time axis.

公开(公告)号：EP3054707A4

公开(公告)日：2017-05-03

申请号：EP14851266

申请日：2014-09-19

Applicant: CLARION CO LTD

Inventor： HASHIMOTO TAKESHI ,  FUKUE KAZUTOMO ,  WATANABE TETSUO ,  FUJITA YASUHIRO

IPC: H04R29/00 ,  H04S1/00

CPC classification number: H04R29/001 ,  G01H3/125 ,  G10L21/14 ,  G10L21/18 ,  H04R29/008 ,  H04S1/00 ,  H04S2400/15

Abstract: A sound field measuring device (1) obtains frequency characteristics by collecting output sound outputted from a pair of speakers (101a, 101b) installed at a narrow interval. A low-pass filter (22a) extracts low-range components of a first measurement signal. A high-pass filter (22b) extracts mid/high-range components of a second measurement signal different from the first measurement signal. A combined signal generation unit (22c) generates a combined signal by combining the low-range components of the first measurement signal and the mid/high-range components of the second measurement signal. An external output unit (6) outputs the first measurement signal to an audio system (102). A microphone (7) collects the first measurement signal and the combined signal simultaneously outputted from the pair of speakers. A Fourier transform unit (13) obtains the frequency characteristics of a sound field by Fourier transforming the signals collected.

Abstract translation: 声场测量装置（1）通过收集从窄间隔安装的一对扬声器（101a，101b）输出的输出声音来获得频率特性。 低通滤波器（22a）提取第一测量信号的低范围分量。 高通滤波器（22b）提取不同于第一测量信号的第二测量信号的中/高范围分量。 组合信号生成单元（22c）通过组合第一测量信号的低范围分量和第二测量信号的中/高范围分量来生成组合信号。 外部输出单元（6）将第一测量信号输出到音频系统（102）。 麦克风（7）收集从该对扬声器同时输出的第一测量信号和组合信号。 傅立叶变换单元（13）通过傅立叶变换所收集的信号来获得声场的频率特性。

公开(公告)号：EP3057344A4

公开(公告)日：2017-06-07

申请号：EP14852648

申请日：2014-09-22

Applicant: CLARION CO LTD

Inventor： FUKUE KAZUTOMO ,  HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO

IPC: H04R3/04 ,  H04R29/00

CPC classification number: H04S7/307 ,  H04R3/04 ,  H04R29/008 ,  H04S7/301 ,  H04S2400/09 ,  H04S2400/13 ,  H04S2400/15 ,  H04S2420/07

Abstract: A sound field measuring device (1) includes an external output unit (6) configured to output a measurement signal composed of a periodic function having a code length of 2 n -1 (n is a natural number) to a speaker (9), a microphone (7) configured to pick up the measurement signal outputted from the speaker (9), a Fourier transform unit (12) configured to obtain frequency characteristics by Fourier transforming measurement sound picked up with a sample length of 2 m (m is a natural number), a thinning-out unit (13) configured to remove line spectra except for the (k×2 m-n +1)th line spectra (k=0, 1, 2, and the like) from the obtained frequency characteristics, and an averaging unit (14) configured to obtain averaged frequency characteristics of a sound field on the basis of frequency characteristics thinned-out.

Abstract translation: 声场测量装置（1）包括：外部输出单元（6），其被配置为向扬声器（9）输出由码长为2 n -1（n是自然数）的周期函数组成的测量信号; 麦克风（7），其被配置为拾取从扬声器（9）输出的测量信号;傅立叶变换单元（12），其被配置为通过傅立叶变换以2m的样本长度拾取的测量声音来获得频率特性（m是 自然数）;稀疏化单元（13），被配置为从所获得的频率特性中去除除第（k×2 mn +1）行谱（k = 0,1,2等）之外的谱线， 以及平均单元（14），被配置为基于稀疏的频率特性来获得声场的平均频率特性。

公开(公告)号：EP3016412A4

公开(公告)日：2017-03-01

申请号：EP14818103

申请日：2014-06-19

Applicant: CLARION CO LTD

Inventor： HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO ,  FUKUE KAZUTOMO

IPC: H04S1/00 ,  G10L19/00 ,  H04S5/02

CPC classification number: H04S7/302 ,  H03H17/0009 ,  H03H17/0213 ,  H03H17/08 ,  H04R3/04 ,  H04R2499/13 ,  H04S1/00 ,  H04S2420/07

Abstract: A propagation delay time correction apparatus comprising a means for generating a frequency spectrum signal by performing short-term Fourier transform on an audio signal; a means for setting a propagation delay time for each of a plurality of predetermined frequency bands; a means for calculating a phase control amount for each of the plurality of predetermined frequency bands on a basis of the propagation delay time set for each of the plurality of predetermined frequency bands; a means for generating a phase control signal by smoothing the calculated phase control amount for each of the plurality of predetermined frequency bands; a means for controlling a phase of the frequency spectrum signal for each of the plurality of predetermined frequency bands on a basis of the generated phase control signal; and a means for generating an audio signal on which a propagation delay correction is performed by performing inverse short-term Fourier transform on the frequency spectrum signal of which the phase is controlled for each of the plurality of predetermined frequency bands.

公开(公告)号：EP2916564A4

公开(公告)日：2016-08-17

申请号：EP13859997

申请日：2013-11-18

Applicant: CLARION CO LTD

Inventor： FUJITA YASUHIRO

IPC: H04R3/04

CPC classification number: H04R3/04 ,  H04R2430/03 ,  H04R2499/13

Abstract: It is an object of the present invention to provide a distortion sound correction complement device that reduces distortion of sound to improve sound quality even when an output sound is distorted in a speaker or the like. The device includes a first filter unit, a signal level detection unit, a first lookup table unit, a second lookup table unit, a correction band extraction signal generation unit, a correction signal generation unit, a first edge detection unit (54), a filter unit (57, 58), a first amplification unit (59), a second filter unit (62), and an output signal generation unit. The first filter unit generates a correction band signal based on a frequency at which a distortion occurs in the speaker. The signal level detection unit detects a signal level of the correction band signal. The first lookup table unit determines a control signal. The second lookup table unit determines a correction amount. The correction band extraction signal generation unit generates a correction band extraction signal by multiplying the correction band signal by the control signal. The correction signal generation unit generates a correction signal by subtracting the correction band extraction signal from the input signal. The first edge detection unit (54) generates an overtone signal from the correction band extraction signal. The filter unit (57, 58) suppresses high-frequency range and low-frequency range signal levels of the overtone signal. The first amplification unit (59) amplifies the overtone signal. The second filter unit (62) generates a complement signal from the overtone signal. The output signal generation unit generates an output signal by adding the complement signal to the correction signal.

公开(公告)号：JP2015015550A

公开(公告)日：2015-01-22

申请号：JP2013140110

申请日：2013-07-03

Applicant: クラリオン株式会社 ,  Clarion Co Ltd

Inventor： HASHIMOTO TAKESHI ,  WATANABE TETSUO ,  FUJITA YASUHIRO ,  FUKUE KAZUTOMO ,  KUROMOTO SHINICHI

IPC: H04S5/02 ,  B60R11/02 ,  G10K15/00

Abstract: 【課題】リスニングエリア内で周波数特性が大きく変動する傾向のある環境において、適切な音場補正処理を行うことにより聴感上の音質向上を図ること。【解決手段】音場補正フィルタ生成方法では、スピーカより出力された測定信号と、リスニングエリアで集音して取得した収録信号とに基づいて、リスニングエリアの周波数特性を算出し、算出された周波数特性の分散αと重み変換値k1とに基づいて、重み量WtをWt=10(−α?k1)式により算出し、算出された重み量Wtに、周波数特性に基づいて算出される平均周波数特性をレベルオフセットした基準音響特性を乗算して、音場補正フィルタを生成することを特徴とする。【選択図】図2

Abstract translation: 要解决的问题：通过执行适当的声场校正，在具有频率特性在收听区域显着变化的趋势的环境中增强可听度的声音质量。解决方案：在声场校正滤波器生成方法中，频率特性 基于从扬声器输出的测量信号和通过收集听觉区域中的声音而获取的记录信号来计算收听区域，根据频率特性的方差α由公式Wt = 10b计算权重量Wt，从而 计算出的权重转换值k1，然后通过乘以由通过执行基于频率特性计算出的平均频率特性的电平偏移而获得的参考声学特性来计算的权重量Wt来生成声场校正滤波器。