Compression 102, how do we boost loudness via dynamic range compression to catch people's attention.
This is not about making audio sound better; it is about making it sound more striking. It is about capturing people's attention and hooking them into a radio program, or the background in a music store. It is about making sales of music, or in advert breaks. This is a fascinating area, though it is important to realise that we are not attempting to make stuff sound better in a classic sense, just louder.
Here is the video - I have put the compression patch used at the bottom of this post:
http://youtu.be/l_75rzdaxkg
"temp/step-1.wav" ReadFile ^left ^right
{
(
(?signal Reverse,1,50)Follow Reverse,
(?signal ,1,50)Follow,
)Mix !shape
(?shape,(2,?shape MaxValue)/)NumericVolume !shape
(0.04,>shape)DirectMix Clip !shape
(>signal,?shape)Multiply Normalise !signal
(
(?signal Normalise,25,25)Follow,
(?signal Normalise Reverse,25,25)Follow Reverse,
)Mix !shape
(?shape,(1,?shape MaxValue)/)NumericVolume !shape
(0.3,>shape dbs+24)DirectMix !shape
(
>signal,
>shape
)Divide Normalise !signal
}!envelope-compress
(?left ,2000,6)BesselHighPass !signal-h
(?left ,2000,6)BesselLowPass !signal
(>signal,150,1,3)RBJPeaking !signal
?envelope-compress Invoke
(
(30 Silence,(>signal dbs+6 WaveLimit,2000,6)BesselLowPass)Concatenate,
>signal-h dbs+6 WaveLimit
)Mix Normalise dbs+3 WaveLimit !left-new
(?right,2000,6)BesselHighPass !signal-h
(?right,2000,6)BesselLowPass !signal
(>signal,150,1,3)RBJPeaking !signal
?envelope-compress Invoke
(
(30 Silence,(>signal dbs+6 WaveLimit,2000,6)BesselLowPass)Concatenate,
>signal-h dbs+6 WaveLimit
)Mix Normalise dbs+3 WaveLimit !right-new
((>left-new,>right-new)StereoMonitor,"temp/tone.wav")WriteFile32
No comments:
Post a Comment