Audio signal processing apparatus

    公开(公告)号:US20090228288A1

    公开(公告)日:2009-09-10

    申请号:US12453601

    申请日:2009-05-15

    IPC分类号: G10L19/00

    摘要: An audio signal encoding apparatus includes a device for compressing multiple-channel digital audio signals into compression-resultant multiple-channel signals respectively. The multiple-channel digital audio signals relate to a sampling frequency and a quantization bit number. The compression-resultant multiple-channel signals, a signal representative of the sampling frequency, and a signal representative of the quantization bit number are formatted into a formatting-resultant signal. The formatting-resultant signal contains a sub packet and a sync information portion. The sub packet contains at least portions of the compression-resultant multiple-channel signals. The sync information portion contains the signal representative of the sampling frequency and the signal representative of the quantization bit number.

    Signal compressing apparatus
    5.
    发明授权
    Signal compressing apparatus 有权
    信号压缩装置

    公开(公告)号:US07394973B2

    公开(公告)日:2008-07-01

    申请号:US10795297

    申请日:2004-03-09

    IPC分类号: H04N5/91 H04N5/00

    摘要: An input signal is quantized into a quantization-resultant signal. The quantization-resultant signal is compressed into a compression-resultant signal. The compression-resultant signal is formatted into a formatting-resultant signal corresponding to a predetermined format for a digital recording disc. The formatting-resultant signal includes segments corresponding to user data areas prescribed in the predetermined format. The compression-resultant signal is placed in the segments of the formatting-resultant signal. The formatting-resultant signal is encoded into an encoding-resultant signal of a CD format. The encoding-resultant signal is recorded on a recording medium.

    摘要翻译: 输入信号被量化为量化结果信号。 量化结果信号被压缩成压缩结果信号。 压缩结果信号被格式化成对应于数字记录盘的预定格式的格式化结果信号。 格式化结果信号包括与以预定格式规定的用户数据区域相对应的段。 压缩结果信号被放置在格式化结果信号的段中。 格式化结果信号被编码成CD格式的编码结果信号。 编码结果信号被记录在记录介质上。

    Audio disc of improved data structure and reproduction apparatus therefor
    7.
    发明授权
    Audio disc of improved data structure and reproduction apparatus therefor 有权
    改进的数据结构和再现装置的音频盘

    公开(公告)号:US07136575B2

    公开(公告)日:2006-11-14

    申请号:US10062304

    申请日:2002-02-02

    IPC分类号: H04N7/04 H04N5/91 H04N5/781

    摘要: An optical audio disc comprises the first pack (A Pack), the second pack (A-CONT Pack), the third pack (V Pack), and the fourth pack (CONT Pack) in which the A-CONT Pack is placed at the head of a data array and a plurality of the A and V Packs follow the A-CONT Pack in each audio contents block unit (ACBU). Information contained in an A-CONT Pack manages audio data contained in the A Pack. The A Pack contains audio data and the V Pack contains other data than the audio data such as closed caption (CC) data as well as video data. A reproduction apparatus for an optical audio disc (DVD-Audio disc) comprises the CONT Pack detector section 1103, the A-CONT Pack detector section 1109, the parameter sections 1108 and 1114, the V Pack buffer section 1104, and the A Pack buffer section 1110. The CONT Pack detector section 1103 and the A-CONT Pack detector section 1109 detect reproduced CONT and A-CONT Packs contained in the DVD-Audio disc 1101 respectively. Control parameters of reproduced data are arranged in the parameter sections 1108 and 1114, and at the same time V Packs controlled by the information in the CONT Pack and A Packs controlled by the information in the A-CONT Pack are sequentially written in the V Pack buffer section 1104 and the A Pack buffer section 1110 respectively.

    摘要翻译: 光学音频盘包括第一包(A包),第二包(A-CONT包),第三包(V包)和第四包(CONT包),其中A-CONT包放置在 数据阵列的头部和多个A和V包遵循每个音频内容块单元(ACBU)中的A-CONT包。 包含在A-CONT Pack中的信息管理A包中包含的音频数据。 A包包含音频数据,V包含有诸如隐藏字幕(CC)数据和视频数据之类的音频数据的其他数据。 用于光学音频盘(DVD-音频盘)的再现装置包括CONT包检测器部分1103,A-CONT包检测器部分1109,参数部分1108和1114,V包缓冲器部分1104和A包缓冲器 第1110条。 CONT包检测器部分1103和A-CONT包检测器部分1109分别检测包含在DVD音频盘1101中的再现的CONT和A-CONT包。 重放数据的控制参数被布置在参数部分1108和1114中,并且同时由由CONT包中的信息控制的V包和由A-CONT包中的信息控制的A包顺序地写入V包 缓冲器部分1104和A包缓冲器部分1110。

    Signal encoding apparatus, audio data transmitting method, audio data recording method, audio data decoding method and audio disc
    8.
    发明授权
    Signal encoding apparatus, audio data transmitting method, audio data recording method, audio data decoding method and audio disc 有权
    信号编码装置,音频数据发送方法,音频数据记录方法,音频数据解码方法和音频盘

    公开(公告)号:US06898369B2

    公开(公告)日:2005-05-24

    申请号:US10423516

    申请日:2003-04-25

    摘要: A format of data recorded in a DVD-Audio disc is composed of an audio manager (AMG) and a plurality of audio title sets (ATSs) following the AMG. A plurality of audio packs are arranged in each ATS. An audio signal indicating a musical composition is encoded to audio data in a signal processing circuit, and the audio data is arranged in the audio packs. The audio data of the audio packs are formatted in a DVD formatting unit with the AMG to be arranged in the ATSs following the AMG. Also, copyright information is arranged in an area of a control data block placed in a read-in area of the DVD-Audio disc. Table-of-contents (TOC) information indicating a top address of the audio data is automatically produced and is arranged in an empty area of the control data block reserved for the copyright information, in an area of the audio packs, in an area of the AMG or in an area of the ATSs. The AMG, the ATSs including the audio packs and the TOC information arranged at the data format in the DVD formatting unit are transmitted to a human editor through a transmission medium and is recorded in the DVD-Audio disc. Therefore, when the audio data is read out from the DVD-Audio disc, the audio data can be easily played back from the top position of the musical composition according to the TOC information.

    摘要翻译: 记录在DVD音频盘中的数据的格式由AMG之后的音频管理器(AMG)和多个音频标题组(ATS)组成。 在每个ATS中布置多个音频包。 指示音乐作品的音频信号被编码为信号处理电路中的音频数据,并且音频数据被布置在音频包中。 音频包的音频数据被格式化为DVD格式化单元,AMG将被安排在跟随AMG的ATS中。 此外,版权信息被布置在放置在DVD音频盘的读入区域中的控制数据块的区域中。 表示音频数据的顶部地址的内容表(TOC)信息被自动产生,并且被布置在音频包的区域中的版权信息保留的控制数据块的空白区域中 AMG或ATS的一个区域。 包括音频包的ATS和以DVD格式化单元的数据格式排列的TOC信息通过传输介质发送给人类编辑器,并被记录在DVD音频盘中。 因此,当从DVD音频盘读出音频数据时,可以根据TOC信息从音乐作品的顶部位置容易地重放音频数据。

    Audio signal processing apparatus
    9.
    发明授权
    Audio signal processing apparatus 有权
    音频信号处理装置

    公开(公告)号:US06757659B1

    公开(公告)日:2004-06-29

    申请号:US09432103

    申请日:1999-11-02

    IPC分类号: G01L1900

    摘要: An audio signal encoding apparatus includes a device for compressing multiple-channel digital audio signals into compression-resultant multiple-channel signals respectively. The multiple-channel digital audio signals relate to a sampling frequency and a quantization bit number. The compression-resultant multiple-channel signals, a signal representative of the sampling frequency, and a signal representative of the quantization bit number are formatted into a formatting-resultant signal. The formatting-resultant signal contains a sub packet and a sync information portion. The sub packet contains at least portions of the compression-resultant multiple-channel signals. The sync information portion contains the signal representative of the sampling frequency and the signal representative of the quantization bit number.

    摘要翻译: 音频信号编码装置包括分别将多声道数字音频信号压缩为压缩多通道信号的装置。 多声道数字音频信号与采样频率和量化比特数有关。 压缩结果多信道信号,表示采样频率的信号和表示量化比特数的信号被格式化成格式化结果信号。 格式化结果信号包含子分组和同步信息部分。 子分组包含至少部分压缩结果多信道信号。 同步信息部分包含表示采样频率的信号和表示量化比特数的信号。

    Signal compressing apparatus
    10.
    发明授权
    Signal compressing apparatus 有权
    信号压缩装置

    公开(公告)号:US06393203B1

    公开(公告)日:2002-05-21

    申请号:US09655046

    申请日:2000-09-05

    IPC分类号: H04N5781

    摘要: An input signal is quantized into a quantization-resultant signal. The quantization-resultant signal is compressed into a compression-resultant signal. The compression-resultant signal is formatted into a formatting-resultant signal corresponding to a predetermined format for a digital recording disc. The formatting-resultant signal includes segments corresponding to user data areas prescribed in the predetermined format. The compression-resultant signal is placed in the segments of the formatting-resultant signal. The formatting-resultant signal is encoded into an encoding-resultant signal of a CD format. The encoding-resultant signal is recorded on a recording medium.

    摘要翻译: 输入信号被量化为量化结果信号。 量化结果信号被压缩成压缩结果信号。 压缩结果信号被格式化成对应于数字记录盘的预定格式的格式化结果信号。 格式化结果信号包括与以预定格式规定的用户数据区域相对应的段。 压缩结果信号被放置在格式化结果信号的段中。 格式化结果信号被编码成CD格式的编码结果信号。 编码结果信号被记录在记录介质上。