公开(公告)号：USRE46388E1

公开(公告)日：2017-05-02

申请号：US14835121

申请日：2015-08-25

Applicant: Sony Corporation

Inventor： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

IPC: G10L19/032

CPC classification number: G10L19/032

Abstract: There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idwl0, based on normalization information idsf, and allocates the total quantization information idwl0 for quantization information idwl1 and quantization information idwl2. At this time, the quantization information calculation section limits the quantization information idwl1 by a limiter lim1, and allocates the total quantization information idwl0 for quantization information idwl1. If the quantization information idwl1 exceeds the limiter lim1, the excess is allocated for the quantization information idwl2. A first normalization section and a first quantization section normalizes and quantizes a frequency spectrum mdspec1 in the first stage. A second normalization section and a second quantization section normalizes and quantizes a differential frequency spectrum mdspec2 in the second stage.

公开(公告)号：USRE48272E1

公开(公告)日：2020-10-20

申请号：US15434964

申请日：2017-02-16

Applicant: Sony Corporation

Inventor： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

IPC: H04B14/06 ,  G10L19/032

Abstract: There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idwl0, based on normalization information idsf, and allocates the total quantization information idwl0 for quantization information idwl1 and quantization information idwl2. At this time, the quantization information calculation section limits the quantization information idwl1 by a limiter lim1, and allocates the total quantization information idwl0 for quantization information idwl1. If the quantization information idwl1 exceeds the limiter lim1, the excess is allocated for the quantization information idwl2. A first normalization section and a first quantization section normalizes and quantizes a frequency spectrum mdspec1 in the first stage. A second normalization section and a second quantization section normalizes and quantizes a differential frequency spectrum mdspec2 in the second stage.

公开(公告)号：US09762193B2

公开(公告)日：2017-09-12

申请号：US13788488

申请日：2013-03-07

Applicant: Sony Corporation

Inventor： Ryuichi Namba ,  Mototsugu Abe ,  Akira Inoue ,  Keisuke Toyama ,  Shusuke Takahashi ,  Masayuki Nishiguchi

IPC: H03G1/00 ,  G11B27/034 ,  H04N5/77 ,  H04R3/00 ,  G10L21/0208 ,  H04N5/91 ,  H04N9/806

CPC classification number: H03G1/00 ,  G10L2021/02087 ,  G11B27/034 ,  H04N5/772 ,  H04N5/91 ,  H04N9/8063 ,  H04R3/005 ,  H04R2201/401 ,  H04R2430/20 ,  H04S2400/15

Abstract: A sound processing apparatus includes a sound determination portion operable to determine whether an input sound includes a first sound emitted from a particular source based on location information of the source, a sound separation portion operable to separate the input sound into the first sound and a second sound emitted from a source different from the particular source if the sound determination portion determines that the input sound includes the first sound, and a sound mixing portion operable to mix the first sound and the second sound separated by the sound separation portion at a prescribed volume ratio.

公开(公告)号：US20130182857A1

公开(公告)日：2013-07-18

申请号：US13788488

申请日：2013-03-07

Applicant: Sony Corporation

Inventor： Ryuichi Namba ,  Mototsugu Abe ,  Akira Inoue ,  Keisuke Toyama ,  Shusuke Takahashi ,  Masayuki Nishiguchi

IPC: H03G1/00

CPC classification number: H03G1/00 ,  G10L2021/02087 ,  G11B27/034 ,  H04N5/772 ,  H04N5/91 ,  H04N9/8063 ,  H04R3/005 ,  H04R2201/401 ,  H04R2430/20 ,  H04S2400/15

Abstract: A sound processing apparatus includes a sound determination portion operable to determine whether an input sound includes a first sound emitted from a particular source based on location information of the source, a sound separation portion operable to separate the input sound into the first sound and a second sound emitted from a source different from the particular source if the sound determination portion determines that the input sound includes the first sound, and a sound mixing portion operable to mix the first sound and the second sound separated by the sound separation portion at a prescribed volume ratio.

Abstract translation: 一种声音处理装置，包括声音判定部，其可操作以基于源的位置信息来确定输入声音是否包括从特定源发射的第一声音，声音分离部分，其可操作以将输入声音分离成第一声音;以及第二声部 如果声音确定部分确定输入声音包括第一声音，声音混合部分可操作以将声音分离部分分离的第一声音和第二声音混合在规定音量 比。

公开(公告)号：US20140177853A1

公开(公告)日：2014-06-26

申请号：US14132406

申请日：2013-12-18

Applicant: Sony Corporation

Inventor： Keisuke Toyama

IPC: H04R3/00

CPC classification number: G10L21/0208 ,  G10L25/78 ,  G10L25/93

Abstract: There is provided a sound processing device including a background noise estimation unit configured to estimate a background noise of an input signal, a noise suppression unit configured to suppress the background noise of the input signal based on a result obtained by estimating the background noise, a feature quantity calculation unit configured to calculate a feature quantity based on the input signal in which the background noise is suppressed, and a consonant detection unit configured to detect a consonant from the input signal based on the feature quantity.

Abstract translation: 提供了一种声音处理装置，包括：背景噪声估计单元，被配置为估计输入信号的背景噪声;噪声抑制单元，被配置为基于通过估计背景噪声获得的结果来抑制输入信号的背景噪声; 特征量计算单元，被配置为基于抑制背景噪声的输入信号来计算特征量;以及辅助检测单元，被配置为基于特征量从输入信号检测辅音。