IPB

Welcome Guest ( Log In | Register )

Applying Gain to 16-bit Recordings
Engelsstaub
post Jul 18 2012, 11:07
Post #1





Group: Members
Posts: 569
Joined: 16-February 10
Member No.: 78200



I have a few questions regarding some 16/44.1 recordings I have that could be a bit louder. I wanted to boost the gain to somewhere around the point where peaks will be around -1dB without clipping. (It seems that typically the peaks are around -3dB and the meat of the recording is around 6dB and often lower.)

The files will first be upsampled to 32-bit(float)/44.1 and edited in iZotope RX2 Advanced. (Editing consists of light declicking, some possible noise removal between tracks, etc. and then resampling/dithering back.) My questions are these:

1. Is there any reason why applying gain would effect the quality of the original recording in the resulting product? (Would it have just been better to get the level set closer in the first place tongue.gif ?) I know that reducing the volume is "losing bit depth," as I've read this from members in older threads while searching earlier. Is there a reduction in bit depth (or perceivable sound quality) when increasing the volume when using a quality program at the upsampled bit rate?

2. Should the gain be applied before or after the editing (or does it even matter) assuming that number one isn't a boneheaded way to approach this with respect to quality?

Basically I believe it would be ideal to make this...



...look about like this. (About 3dB louder.)



(Sorry if these questions are a bit noobish. I've been reading my ass off through the archives and still can't quite get a grasp.)


--------------------
The Loudness War is over. Now it's a hopeless occupation.
Go to the top of the page
+Quote Post
 
Start new topic
Replies
Engelsstaub
post Jul 19 2012, 14:28
Post #2





Group: Members
Posts: 569
Joined: 16-February 10
Member No.: 78200



bandpass: I guess I never really thought of it that way. I've seen/heard plenty of examples of CDs mastered like that and find them far preferable to what they are doing to modern pressings on the format now. If it's too low we can always reach for the volume, but we can't fix this clipped/0 dBFS stuff that's getting pressed today.

Porcus: Yeah, that's the one. It's overall a decent TT. It sacrifices some flexibility for convenience. If the wow and flutter stays low I may just keep it around and upgrade the cart to a Ortofon Blue or something not too expensive. The cartridge that comes with it sounds decent to my ears but it's possible I just don't know any better.

I've never tried to output from the RCAs and the USB simultaneously. Most of my records range from approximately -3 to minus -6 down from FS. There's a few, especially 2xLPs that are cut a little louder and can't be decently recorded until I acquire some additional analog hardware to go between the pre and the computer. ...but that's life.


--------------------
The Loudness War is over. Now it's a hopeless occupation.
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 18th December 2014 - 13:07