You are going to get the full feast at Jay McKnights place...go here:4 r8 f" {' z1 U0 `& t1 A
. ]* s1 A' j3 Z+ x j% ^$ O
. W! L! _# \: P$ }) R& h) z" w- bthe NAB curve is the oldest eq curve still used today and was used back in 1948. I believe CCIR is the euro name for AES and in fact running 15 ips in CCIR is similar eq wise to what is going on at 30ips. CCIR or IEC1 (as its also referred to) boosts the hi frequencies relative to 1k on the record side so that there will be less hiss on play back. Technically, you are recording 2.51 db louder at 10k in CCIR than you are in NAB, recording ~1db quieter at 100hz and 1k remains unchanged. (You need a reference after all).% g8 d; R8 |8 s' M5 a7 {/ `3 ]5 C4 z
% p4 k, v" J% e* Q J! _ uSome machines are easier to switch to IEC1 than others. Studers are easy. ATR's have some dip switches on the audio cards.( u" S3 \6 _7 d, K7 r
$ D" i9 |! H- l: O1 L8 o$ Z/ U1 h1 B
I use IEC1 on my 1/2" and mostly stay at 15ips for mix down.& ?; m6 A( S4 @, z4 G- M5 V1 v- T
. ?% T- ^1 @4 o
Go visit Jay McKnights page and you will get complete answers to this and just about all the questions you haven't thought of yet.9 J+ _# }) O& T5 D5 D
$ X8 C# L0 F# D) BBest, H' T- N; `( t- X3 b4 m* H }1 j, Y
joshua |
公安部备 45010302002201
客服：18077773618
发表于 2017-4-24 10:26:13
楼主
