Free flac to mp3 software for linux

Marlin is a sample editor for Gnome 2. It uses GStreamer for file operations and for recording and playback, meaning it can handle a great number of formats and work with most sound systems.
Main features:
- Can load from a large number of media formats (.mp3, .ogg, .wav, .au, .flac, .mpg, .avi...)
- Can save to many formats (.mp3, .wav, .au, .ogg, .flac...) and use the Gnome-Media profiles
- Can handle large files with no problems
- Handles cut, copy, paste, replace and mix operations
- Infinite levels of Undo/Redo and everything should be undoable
- Fully Gnome 2 HIG compliant
- Can record from a variety of sources (ALSA, OSS, esd, arts)
- Playback
- Can extract audio from CDs (with optional musicbrainz lookup)
- Gnome-VFS support
- Horizontal and Vertical scaling
- Uses GStreamer

crip is a terminal-based ripper/encoder/tagger tool for creating Ogg Vorbis/FLAC/MP3 files under UNIX/Linux. It is well-suited for anyone (especially the perfectionist) who seeks to make a lot of files from CDs and have them all properly labeled and professional-quality with a minimum of hassle and yet still have flexibility and full control over everything. Current versions of crip only support Ogg Vorbis and FLAC. If you want to encode MP3 files you should use crip-1.0.
I am constantly refining the process of creating perfect music files to be as automated as possible while still leaving the user with control over as much as possible. To see for yourself how painless it is to make professional-grade music files on your UNIX/Linux machine, go through the crip tutorial.
This script is special because it is the only one that I know that is capable of doing group vorbisgain/replaygain and/or normalization (adjust the volume to be as loud as possible without clipping/distortion) and group labelling/tagging, which makes it easy to allow a group of tracks to be treated as one piece. It can also trim off the silence at the beginning and end of these tracks/groups.
First the script fetches the CDDB info off the internet. Then it prompts you for the grouping of the tracks. This is important because it will treat each group of tracks as one piece, label and vorbisgain/replaygain and/or normalize them (using the volume gain/peak of that group). Normalization is now obsolete with the creation of vorbisgain (replaygain) utilities, so I have that turned off by default and itll run vorbisgain instead.
You can, of course, have each track be a group by itself (such as what youd want to do with most pop CDs). But since Ive also ripped a lot of Classical music I found it necessary to group tracks differently fairly often.
Then it will prompt you for the Artist and Album info (which is already defaulted to what is pulled from CDDB). Afterwards it will prompt you for a filename for each track you selected. Again this field is defaulted to what it suspects that youd want. For most pop CDs all I have to do is hit enter here because the filename is almost always exactly what Id want.
It will then prompt you that its ready to rip. From here everything is automated, so hit return and it usually finishes in about an hour. The script calls cdparanoia to rip the tracks, and then oggenc/flac/lame to encode them. It also labels the files with info appropriately, including the CDDB CD DiscID number (so you will always have a CD reference hex-number inside your OGG/FLAC/MP3 file).
Ive looked into other scripts out there that do something similar to this script, but decided to write my own since I couldnt find one that groups tracks and trims silence. I used this script to rip and encode my collection of over 200 Bach CDs, as well as a bunch of other Classical and non-Classical CDs very easily.
Ive provided links below that include some of the prerequisites that you may need.
Main features:
- Track grouping for automated tagging and appropriate normalization/vorbisgain on multi-track pieces.
- CDDB fetching to populate default information.
- CDDB submit to update the CDDB database with your more accurate info.
- Automates as much of the tagging as possible for fully-labeled professional quality music files.
- Automatically trims digital silence at the beginning and end of a track/group (if desired).
- European character support. Also European character-mapping support.
- Flexibility and full user control in tagging and file naming.
Enhancements:
- Bugfix: -m flag on the command line was not being processed

QMBTagger is a Qt-based frontend to the MusicBrainz client library, allowing lookup and tagging of MP3, Ogg, and FLAC files by acoustic IDs. It also allows lookup of CDs based on their tables of contents.
Enhancements:
- FIXED: Bug 945936. Added in the necessary preprocessor directives to keep ogg,mp3,flac support from building if it was not detected by the configure script.
- ADDED: Feature Request 946019. Added support for removing songs from the song list.
- CHANGED: Switched to a QListBox for the list of files since we only need one column.
- ADDED: Feature Request 946017. Added support for keeping track of the directory and a command line option -d directory/path, which sets the directory to start in.
- FIXED: Bug 946401. Check if QMBFile.GetSelectedChild() returns NULL.
- FIXED: Make last directory saving/loading work with loading files too.
- FIXED: Clicking Open Directory and then hitting Cancel no longer tries to open the directory.
- FIXED: No longer does weird things when you query and a song was already selected. Also immediately displays results if a song was already selected.
- FIXED: Bug 969872. Was segfaulting because trm_t object was being reused. Now creates new trm_t object for each song.
- FIXED: Duration is padded correctly now (so it shows up as, e.g., 00:06:04 instead of 0:6:4).
- FIXED: trm_t no longer needs to be deleted in QMBFileView destructor because it is done in the query loop.
- FIXED: Can now use Qt 3.1.2.
- CHANGED: Version number bumped for release.
- FIXED: Aborted on error during CD lookup because of improper string use.

Gamp is a simple to use audio player.

Gamp is a clean/simple audio player for Gnome. It is written in C and uses the Gstreamer framework for audio playback.

It supports MP3, Ogg Vorbis, and Flac. Its interface is similar to that of Winamp, Freeamp, or XMMS.

Asunder is a graphical CD ripper and encoder. It supports WAV, MP3, Ogg Vorbis, and FLAC. It has CDDB support and can create M3U playlists.
It uses GTK2 and is desktop environment independent. It is multithreaded, so it can rip and encode at the same time. It aims to make CD ripping as quick and easy as possible.
Main features:
- Support for WAV, MP3, Ogg Vorbis, and FLAC audio files
- Uses CDDB to name and tag each track
- Can encode to multiple formats in one session
- Creates M3U playlists
- Allows for each track to be by a different artist
- Does not require a specific desktop environment

snd123 is a simple command line audio player that supports MP2, MP3, AAC, Ogg Vorbis, Speex, FLAC, Apple Lossless, AC3, CDDA, WMA 1 and 2, MOD, XM, IT, S3M, 669, MTM, and STM.

Supported Formats:

MP2, MP3, AAC, Ogg Vorbis, Speex, FLAC, Apple Lossless, AC3, CDDA, WMA 1 and 2.
MOD formats: MOD, XM, IT, S3M, 669, MTM, STM.

Audio Convert is a script to convert Wav, Ogg, MP3, MPC, FLAC, APE, or WMA files into Wav, Ogg, MP3, MPC, FLAC, or APE files.
It has an easy-to-use interface that makes it possible to fill in the tags for a few formats and choose the quality of compression.
The script was initially designed for the nautilus file browser, and can be easily installed into nautilus by copying it to the nautilus-scripts directory, at which point you can right click on the desired audio file(s) and choose "audio-convert" from the "scripts" menu.
The script is also known to work on rox or directly from a shell.
Enhancements:
- The installer was modified to create the directory it is supposed to create.

MP3 Jukebox-Tk is an organizer/jukebox for local mp3 collections. MP3 Jukebox-Tk sorts your mp3 files by band and presents a jukebox style interface to let you choose which ones to play.

It then passes these off to XMMS for playing. It also keeps stats on what you listen to, and can use those stats to generate a weighted random playlist for you. Non-weighted (truly random) playlists are also available.