10.2 GUI Based Encoders
GUI based encoders offer all the functionality of console based encoding, but wrap it all up in a nice easy to
use interface. Grip and RipperX are similar in operation, both offer you the ability to select one, several or all
tracks on a CD and convert them. They also offer CDDB support which allows you to retrieve the album and
track information from a server and saves you having to enter the information by hand.
10.3 Encoder Performance
In the encoding sections I've mentioned 3 different encoders, bladeenc, lame and gogo. The main difference
is their performance in encoding (although there are differences in the available options which were listed
earlier).
A little example. I ripped a track from a CD and then encoded it with the different encoders. All encoders
were run with the same system conditions and all produced stereo out mp3's.
[dj@megajukebox]$ ls −l cdda.wav
−rw−rw−r−− 1 dj dj 59823164 Feb 10 00:56 cdda.wav
[dj@megajukebox]$ bladeenc cdda.wav −br 256
BladeEnc 0.91 (c) Tord Jansson Homepage: http://bladeenc.mp3.no
===============================================================================
BladeEnc is free software, distributed under the Lesser General Public License.
See the file COPYING, BladeEnc's homepage or www.fsf.org for more details.
Files to encode: 1
Encoding: ../test.wav
Input: 44.1 kHz, 16 bit, stereo.
Output: 128 kBit, stereo.
Completed. Encoding time: 00:05:58 (0.78X)
All operations completed. Total encoding time: 00:05:58
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
[dj@megajukebox]$ lame cdda.wav −b 256
LAME version 3.50 (www.sulaco.org/mp3)
GPSYCHO: GPL psycho−acoustic model version 0.74.
Encoding ../test.wav to ../test.wav.mp3
Encoding as 44.1 kHz 128 kbps j−stereo MPEG1 LayerIII file
Frame | CPU/estimated | time/estimated | play/CPU | ETA
10756/ 10756(100%)| 0:02:28/ 0:02:28| 0:02:29/ 0:02:29| 1.9074| 0:00:00
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
[dj@megajukebox]$ gogo cdda.wav −m s −b 256
GOGO−no−coda ver. 2.24 (Feb 12 2000)
Copyright (C) 1999 PEN@MarineCat and shigeo
Special thanks to Keiichi SAKAI, URURI, Noisyu and Kei
MPEG 1, layer 3 stereo
inp sampling−freq=44.1kHz out sampling−freq=44.1kHz bitrate=256kbps
inp sampling−freq=44.1kHz out sampling−freq=44.1kHz bitrate=128kbps
input file `../test.wav'
The Linux MP3−HOWTO
10.2 GUI Based Encoders 20
