Re:V-vocal pops and clicks and latency?
2011/01/09 11:53:29
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Regarding V-Vocal causing Clicks and Pops on an otherwise crystal clear recording.
I've tested several versions of Sonar and V-Vocal and have discovered an issue which plagues all users recording @ 24-bit.
When using a high quality 24 bit recording that reaches the 0db threshhold. Converting these recordings to V-Vocal results in pops and clicks which degrades the sound quality.
Through testing I've determined this must be occuring because V-Vocal must be converting this audio sample into 16 bit format. Thus the dynamic headroom is not sufficient to work with a sample that was recorded in 24 bit. These clicks and pops occur at any point in the sample upon using V-Vocal in which the dynamic headroom is not sufficient.
For example: a sample recorded in 24 bit has several instances in which the sample reaches -0.1 db's. When converting to 16 bit... any instance which reaches this level will click and pop, because of the lack of dynamic headroom.
So in essence... the sound quality of V-Vocal appears to be lacking because it's using 16 bit samples of our work.
THE WORK AROUND (The Fix):
You can use this work around for any sample recorded at 24 bit:
A) Normalize the sample to 0db.
B) Now normalize the sample to -6.0 db. (This will make the sample's headroom within a range that V-Vocal can work with, without causing clicks and pops.)
C) Work with the sample in V-Vocal.
D) Bounce to clip.
E) Normalize your sample to the db level of your preference.
Until V-Vocal is changed to work with 24 bit audio samples without converting them to 16 bit. I know of no other way to avoid the clicks and pops that occur.
Why does this occur:
24 bit recording's have more dynamic headroom than 16 bit recordings. In layman's terms, they can "get louder" so to speak without distorting. However converting a 24 bit recording, that reaches the 24-bit max level, to 16 bit results in distortions at any level that exceeds 16 bit's capability.
It's like having a calculator which can only work up to the number 100 and trying to plug in the number 101. It just doesn't fit. But in the audio world it results in the distorted clicks and pops that occur.