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[求助] 请问HIMHUI大师,我有几个名词不知道是什么意思!?

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3267
#1 11-10-20 14:06

请问HIMHUI大师,我有几个名词不知道是什么意思!?

今天上MIDIFAN看新闻http://www.midifan.com/modulenews-detailview-9599.htm

最后写着,改进的母带功能,包括DDP导出、PQ编辑和更高采样率的卷积处理


“DDP导出”是什么意思?
“PQ编辑”?
做母带,“卷积处理”是什么意思。


老早就发现有一些东西,是专门做DDP用的,可一直都不知道是干什么用的。
http://www.sonorissoftware.com/catalog/ddp-creator-p-47.html?osCsid=48d302d3b5c8984eed4d57dc224814c5
sonoris也有这个叫DDP的东西

13667
#2 11-10-20 16:39
DDP FILES       

There are two ways to deliver your master to a replication facility, audio CD or DDP file. While audio CDs work for this purpose they are far from ideal because no matter how good the media and the burner are, you're going to have some number of errors in the data.

On the other hand, Disc Description Protocol (DDP) files are delivered as data on a CD-ROM or DVD-ROM. The error correction employed on data discs is designed to be more robust than that of audio CDs. This ensures that the audio master that the plant gets will not have any errors in the data. All the jobs that we take to replication are delivered as DDP files.


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PQ codes refer to 2 of the 8 subcode channels P, Q, R, S, T, U, V, W, that run alongside the audio data on a CD. The P and Q bits contain basic info like track start, pause (end), index, and the basic TOC (Table Of Contents) data. Some other things included are ISRC codes, UPC code, emphasis flag, and copy inhibit flag.


ISRC is short for International Standard Recording Code and is a unique identifier for each track that lists the country of origin, registrant (releasing entity, usually the label), year, and designation code (unique identifier created by the registrant). This code stays with the audio recording for the life of it. Even if it later appears on a compilation, the same ISRC will accompany it.

It is not for the compposition, however, simply the recording. If a new recording of a song is made, it will receive a new ISRC code. In the US the codes are administered by the RIAA. They can help with anti-piracy and royalty collection, though most US radio isn't very good about using the codes. There is better support for them in Europe.

The UPC code is the Universal Product Code, which is essentially the number represented by the barcode on the back of the packaging. These are administered by the UCC, or Uniform Code Council. While an ISRC refers to a single track, the UPC code is for the entire album. Each unique physical product that may be put on a store shelf has a unique code. In addition to the barcode on the back, you can actually encode this into the PQ information.

The code is compatible with the Europenan EAN code, which is why it is often referred to as a UPC/EAN code. The UPC has 12 digits, while the EAN has 13, so if you are encoding a UPC onto the disc, you simply add a leading zero and the rest of the numbers are identical.

Copy Prohibit status and emphasis are less likely to be used much these days. However, early digital recordings did indeed use emphasis, so if you are doing a reissue, compilation, or career retrospective, you may indeed need to know how to deal with pre-emphasis.

CD-Text information (not supported by most players, and not to be confused with CDDB which supplies titles to computer players) is included in one of the other bits (R through W), as is karaoke info, graphics, and other extended features not standard to the original red book CD spec.

Some other "books" besides red include yellow book, which is a data CD (or CD-ROM, often used for DDPi masters), orange book, which is recordable CD, and the extended, +G, and enhanced versions like blue, green, and purple. SACD (Super Audio CD) with its DSD recording is Scarlet book. SACD and DVD are not put on CD media, but rather UDF (Universal Disc Format) higher capacity discs (flavors of DVD).
观众反应
:好知识

8024
#3 11-10-20 16:42
DDP文件 是一种 光盘 镜像文件,专业CD压制用这种文件。
PQ编辑 就是写入PQ码,PQ码是用来保护产权用的。
观众反应
:谢谢 学习了

3267
#4 11-10-20 18:13
哦,这样啊,谢谢楼上两位前辈的回复,原来刻盘和写保护代码,也算母带处理的一部分啊。

我一直用Nero8刻CD,专业DDP软件刻CD,音色更好吗

13667
#5 11-10-20 19:57
主要是減少數字抄寫時的ERROR

..

6727
#6 11-10-21 10:32

这是Magix  — Sequoia 10里的DDP 导出的EXE程序

音乐制品分工是很细致的
编曲棚--->录音棚--->混缩棚---->母带棚---->  CD工厂

其间母带棚工程师在做完母带(确立一张专辑整体风格 的音色音质、 平均响度等参数指标) 后,
会把DEMO交予音乐监制 、唱片公司 ,进行最终的审核 看看需不需要最后修改了 之后拍板定音!

母带棚便把这最后的数字音频转换成DDP母盘镜像,交给CD工厂
这个流程也就是国外所称的 CD Mastering  见下图
                  
            

   CD工厂会把这个“母盘”  根据发行方所定位的市场前期发行量,来压制成众多的“子盘”封装发行
如果此张专辑 市场回馈口碑好、 销售量很大时,还会用母盘 进行再次压制 尽快让第二批的CD唱片投放市场.....

[ 本帖最后由 Salinx 于 11-10-22 07:15 编辑 ]

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观众反应
:学习了,左弦前辈

6727
#7 11-10-21 12:29
Saw板块一直是很好的学习探讨园地,多谢黑莓大哥 小马哥等众多朋友的支持
http://www.audiobar.net/viewthread.php?tid=342711&extra=&page=1
这是几个不同母带棚 母带工程师分享的一些母带流程

[ 本帖最后由 Salinx 于 11-10-21 12:43 编辑 ]

6727
#8 11-10-21 12:37
Saw板块一直是很好的学习探讨园地,多谢黑莓大哥 小马哥等众多朋友的支持

上图中的CD Mastering 流程图只是个母带大体上的脉络 ,有些环节会存在差别
因为每个母带工程师都有自己对音乐的理解 手法上都是有差异的

CD Mastering中 模拟信号的处理 、数字信号的转换 、字时钟同步、采样频率下的变换 、Dither处理 ....看上去很复杂,但这对声音颗粒感的塑形还是很有的必要的 (母带不是简单的提高响度 希望有的初学者走出误区)

举个生活中的例子:大家都吃过绿豆糕 可以想象一下筛子抖绿豆
一盆绿豆 先用大孔筛子抖  之后接着再换成小孔筛子抖,这样经过深加工过的绿豆 颗粒的大小 饱满度都会是均匀的

CD Mastering最后的DDP处理 会减少数字抄录时的ERROR错误,就就相当于把绿豆中的坏绿豆去除
( 例子举得不好 大家多指正探讨)

方大同今年的新专辑 大家不妨买盘CD听听
整张专辑母带做的不错  颗粒感有味道 每首歌的音质、响度 、动态都满均匀的,
真的比某些明星这几年专辑的母带要好

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3267
#9 11-10-21 13:30

回复 Salinx 在 #8 的 pid=3290959 的贴子

左弦老师您还能发我一份吗!        nosg@yahoo.cn

3267
#10 11-10-21 13:48

回复 Salinx 在 #8 的 pid=3290959 的贴子

已收到,非常感谢

1125
#11 11-10-22 05:13
原帖打禅 于 11-10-20 18:13 发表
哦,这样啊,谢谢楼上两位前辈的回复,原来刻盘和写保护代码,也算母带处理的一部分啊。

我一直用Nero8刻CD,专业DDP软件刻CD,音色更好吗


刻 CD 或 DDP 的母盤, 比較經濟的我推薦用 GEAR PRO Mastering Edition.
才直按燒錄CD,也可建立/載入 DDP 映像, 支持DLT, Exabyte , DAT(4mm) 等.
PQ code, ISRC 編號, CD-Text 等也應有盡有.
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291
#12 11-10-22 17:12
左线老师的后期好象也母带处理了?

6727
#13 11-10-23 11:49

回复 Salinx 在 #8 的 pid=3290959 的贴子

PS:补充说明一下PQ code, ISRC 等编码 ,
        其实也就相当于给“这盆做好的绿豆” ,打上“防伪标签” 以防侵权!
        这一切如同流水线一般运作着,当做完最后一道工序后,便可打包销售了

6727
#14 11-10-24 10:15

回复 2554565 在 #10 的 pid=3292458 的贴子

我没有昂贵的母带设备 只有个便宜的DBX母带机  质感的效果比老外的差实在太多了......关于母带知识
任然在学习中 也希望大伙一起学习
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