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CD-DA：光盘数字音频 (CD-DA: Compact Disc Digital Audio)
CD-DA is an abbreviation of "Compact Disc Digital Audio".
CD-DA是“光盘数字音频”的缩写 。
It is also known as Audio CD, is the established conventional format for audio compact discs. The data format of Compact Disc Digital Audio and all the substantial specifications and standards are stated in the Red Book. In 1980, the Red Book was issued and made available by Philips and Sony, which includes the collection of all the substantial specifications and add significant details about the format of Compact Discs. The format of CD-DA is the same as that which is used in ordinary CD players.
也称为音频CD ，是音频光盘的常规格式。 光盘数字音频的数据格式以及所有重要的规范和标准在《红皮书》中都有说明。 1980年，飞利浦和索尼发行并提供了红皮书，其中包括所有主要规格的集合，并增加了有关光盘格式的重要信息。 CD-DA的格式与普通CD播放机中使用的格式相同。
Red Book Formats:
红皮书格式：
In Red Book, the CD-DA format follows some specific standards which are common in the case of the entire CD formats.
在红皮书中， CD-DA格式遵循某些特定标准，这些标准在整个CD格式中很常见。
All the frameworks and specifications in the standard of Red Book, which are common to the entire compact discs, comprise,
整个光盘所共有的《红皮书》标准中的所有框架和规范包括：
Physical frameworks
物理框架
Optical frameworks
光学框架
Deviations and error rates
偏差和错误率
Modulation systems
调制系统
Error correction facility
纠错工具
Digital audio encoding specifications
数字音频编码规范
音频格式 (Format of Audio)
In CD-DA format, the audio comprises two-channel signed to represent numbers in 16-bit linear PCM, which is sampled at 44,100 Hz.
在CD-DA格式中，音频包括两个通道的带符号的代表16位线性PCM中的数字，以44,100 Hz采样。
In case for purposes of encoding, audio samples are all signed 16-bit two's complement integer, which contains sample values from −32768 to +32767.
为了进行编码，音频样本都是带符号的16位二进制补码整数，其中包含从-32768到+32767的样本值。
The frequencies specified by an audio CD can be up to 22.05 kHz, which is the Nyquist frequency sampled at the rate of 44.1 kHz.
音频CD所指定的频率可以高达22.05 kHz，这是以44.1 kHz的速率采样的奈奎斯特频率。
The format of data of audio is classified into frames, frames classified into twelve samples with six in left and six in right samples, discontinuous, which resulted in a sum of total 192 bits or 24 bytes of data of audio per frame.
音频数据的格式分为帧，不连续的帧分为十二个样本，左六个样本，右六个样本，这导致每帧总共192位或24字节的音频数据。
音轨 (Tracks)
The major unit section on a CD is called a track.
CD上的主要单元部分称为轨道。
A CD can comprise up to 99 tracks, which comprise a data track for mixed-mode discs.
CD最多可包含99个磁道，其中包括用于混合模式光盘的数据磁道。
Every track can sequentially have in order up to 100 indexes.
每个音轨可以依次具有多达100个索引。
The enormous greater section of songs is recorded under index 1, by taking the pre-gap being index 0.
通过将预间隙设为索引0，将歌曲的较大部分记录在索引1下。
Reference: Compact Disc Digital Audio
参考： 光盘数字音频
Algo tagged in: Dictionary – 'C'
Algo标签在： 词典 –'C '
翻译自: https://www.includehelp.com/dictionary/cdda-full-form.aspx
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