Negative gains may result in slightly lower bitrates, 711 MiB gained over a total of 27 GiB |
Negative gains may result in slightly lower bitrates, 711 MiB gained over a total of 27 GiB |
  Nov 28 2012, 21:36
Post
#1
|
|
 Group: Members Posts: 1147 Joined: 4-May 04 From: France Member No.: 13875  |
I started experimenting a bit after Greynol said that he applies album gain prior to MP3 encoding. I did the same while transcoding my entire library to Vorbis (AoTuV) -q 5: the resulting files take 711 MiB less than their counterpart (gain unchanged), over a total of 27.2 GiB. That's a 2.56% gain; average bitrate went down from 161 kbps to 157 kbps.
Obviously, I got those results because most of my music gets negative Replaygain values. As far as I'm concerned, it's interesting because I'm pretty short on space on my Clip's 32 GB microsdhc card. -------------------- caudec -c lossyFLAC -q S *.flac
|
 |
 
|
 |
|
Nov 28 2012, 21:43
Post
#2
|
|
 Group: Super Moderator Posts: 9365 Joined: 1-April 04 Member No.: 13167 |
Yes I also notice a slight decrease in average bitrate as a result of attenuating prior to encoding.
This is nothing new however: http://www.hydrogenaudio.org/forums/index....c=10637&hl= The OP in that link is the author of Omni Encoder which, IIRC can scale prior to encoding. http://www.hydrogenaudio.org/forums/index....c=51093&hl= This post has been edited by greynol: Nov 28 2012, 21:54 -------------------- Everything sounds the same until it is proven otherwise.
|
|
|
|
skamp Negative gains may result in slightly lower bitrates Nov 28 2012, 21:36
skamp Thanks for that. Caudec in SVN can now do it too:
... Nov 28 2012, 21:51 greynol No problem. Another benefit of scaling downwards ... Nov 28 2012, 21:56
BFG I suppose that this makes sense, in that some of t... Nov 28 2012, 22:05 Dynamic Aside from Absolute Threshold of Hearing (ATH) mod... Nov 29 2012, 02:13 |
|
Lo-Fi Version | Time is now: 19th June 2013 - 08:15 |
