SoX - Sound eXchange

SoX is a cross-platform (Windows, Linux, MacOS X, etc.) command line utility that can convert various formats of computer audio files in to other formats. It can also apply various effects to these sound files, and, as an added bonus, SoX can play and record audio files on most platforms.

The current release handles the following audio file formats:

• Raw files in various binary formats
• Raw textual data
• Amiga 8svx files
• Apple/SGI AIFF files
• SUN .au files
• AVR files
• CDDA (Compact Disc Digital Audio format)
• CVS and VMS files (continuous variable slope)
• GSM files
• HTK files
• LPC-10 files
• Macintosh HCOM files
• Amiga MAUD files
• AMR-WB & AMR-NB (with optional libamrwb & libamrnb libraries)
• MP3 (with optional libmad and libmp3lame libraries)
• MP4, AAC, AC3, WAVPACK, AMR-NB files (with optional ffmpeg library)
• AVI, WMV, Ogg Theora, MPEG video files (with optional ffmpeg library)
• Ogg Vorbis files (with optional Ogg Vorbis libraries)
• FLAC files (with optional libFLAC)
• IRCAM SoundFile files
• NIST SPHERE files
• Turtle beach SampleVision files
• Sounder & Soundtool (DOS) files
• Yamaha TX-16W sampler files
• SoundBlaster .VOC files
• Dialogic/OKI ADPCM files (.VOX)
• Microsoft .WAV files
• WavPack files (with optional libwavpack library)
• Psion (palmtop) A-law WVE files and Record voice notes
• Maxis XA Audio files
• Pseudo formats that allow direct playing/recording from most audio devices
• The "null" pseudo-file that reads and writes from/to nowhere

The audio effects/tools included are as follows:

• Production effects
• Tone/filter effects
• Volume/level effects
• Editing effects
• Mixing effects
• Pitch/tempo effects
• Mastering effects
• Specialised filters/mixers
• Analysis `effects'
• Miscellaneous effects

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MAD: MPEG Audio Decoder

MAD is a high-quality MPEG audio decoder. It currently supports MPEG-1 and the MPEG-2 extension to lower sampling frequencies, as well as the de facto MPEG 2.5 format. All three audio layers — Layer I, Layer II, and Layer III (i.e. MP3) — are fully implemented.

MAD does not yet support MPEG-2 multichannel audio (although it should be backward compatible with such streams) nor does it currently support AAC.

MAD has the following special features:

• 24-bit PCM output
• 100% fixed-point (integer) computation
• completely new implementation based on the ISO/IEC standards
• available under the terms of the GNU General Public License (GPL)

Because MAD provides full 24-bit PCM output, applications using MAD are able to produce exceptionally high quality audio. Even when the output device supports only 16-bit PCM, applications can use the extra resolution to increase the audible dynamic range through the use of dithering or noise shaping.

Because MAD uses integer computation rather than floating point, it is well suited for architectures without a floating point unit. All calculations are performed with a 32-bit fixed-point integer representation.

Because MAD is a new implementation of the ISO/IEC standards, it is unencumbered by the errors of other implementations. MAD is not a derivation of the ISO reference source or any other code. Considerable effort has been expended to ensure a correct implementation, even in cases where the standards are ambiguous or misleading.

Because MAD is available under the terms of the GPL, it can be freely used in other GPL software, and is also available for immediate evaluation prior to obtaining a commercial license.

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CoolPlayer

CoolPlayer is a blazing Fast Audio Player for Win32 Environments.

Features

• GNU General Public License
• Freeform Skins
• Simple User Interface
• Advanced Playlist editor
• Internet streaming
• ID3 Multitagger
• File Renamer
• Fast mp3->wav converter
• MAD mpeg engine
• OGG Vorbis support
• Winamp input plugins support
• Smallest executable programmed in blazing fast 'C'
• Continuous play
• 8 band convolution equalizer
• Lot's more...

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FAAC

FAAC is an Advanced Audio Coder (MPEG2-AAC, MPEG4-AAC). The goal of FAAC is to explore the possibilities of AAC and exceed the quality of the currently best MP3 encoders.

FAAC 1.28 and FAAD2 2.7 released. Source code is available in the downloads section.

ChangeLog for FAAC 1.28:

• Prevent out of range scalefactors
• Updated to latest mpeg4ip mp4 file format library
• Added -s option to make the encoder output optimized mp4 layout
• Improved JPEG detection for album art
• Lot's of compilation issues solved

ChangeLog for FAAD2 2.7:

• DAB+ support
• Use public headers internally to prevent duplicate declarations
• Explicitly typedef all types as signed
• Made sure MAIN prediction can't be started after the first frame
• Lot's of compilation issues solved
• Bugfix in SBR envelope border calculation

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BonkEnc

BonkEnc is a free audio converter and CD ripper which integrates various popular formats and encoders. It currently supports MP3, MP4/M4A, Ogg Vorbis, FLAC, AAC and Bonk files.

BonkEnc makes it easy to convert your audio CDs to MP3 or Ogg Vorbis files which you can use in your hardware player or with your favorite audio software. The program supports the CDDB/freedb online CD database and CDText and automatically writes song information to ID3v2 or Vorbis comment tags. BonkEnc is available for free.

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winLAME

winLAME is an encoder for several audio formats, including mp3 (MPEG Layer 3), Ogg Vorbis and more. winLAME lets you set up the encoding process with an easy-to-use wizard-style user interface.

winLAME supports many input audio formats, and uses the LAME mp3 encoding library for encoding and the MAD decoding library for decoding. See the features page for a list of all supported formats.

winLAME has the following features:

• Encoding and decoding of many audio formats, including:

.mp3 via LAME mp3 encoder (encoding) and MAD (decoding)

.ogg Ogg Vorbis

.aac via libfaac/libfaad

.wav, .aiff, .au, .voc and many more, via libsndfile

.wma via Windows Media Audio codec

.flac via FLAC library

• Uses LAME features, including:

• high quality and optimized mp3 encoding
• nogap encoding of continuous-mix-cd's
• optimized 3DNow! and SSE routines
• ID3 v1 and v2 tagging

• Easy-to-use wizard-like user interface style for easy encoding setup
• CD Audio extraction (aka. CD ripping), including freedb support
• Presets for fast settings setup
• User interface translations to english and german language
• Batch Processing
• Detailed HTML Help File
• Easy install- and uninstall process
• Small size

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Burn

Burn your files to a disc so you can access them later on. Choose different filesystems so you can share your files with people with different operating systems. Change advanced settings like, file permissions, the disc icon, file dates and more on the fly in Burns inspector.

Let the music be with you. Create standard Audio-CD discs with ease. Just drop your audio files in Burns audio list. Want more music on your disc, Burn can create MP3 discs. More and more players support these discs. Higher quality, no problem, Burn can create DVD-Audio discs, which can contain more and higher quality files.

Burn offers advanced options like CD-Text and mp3 tag editing to personalize your disc.

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LAME

LAME is a high quality MPEG Audio Layer III (MP3) encoder licensed under the LGPL. LAME is considered the best MP3 encoder at mid-high bitrates and at VBR, mostly thanks to the dedicated work of its developers and the open source licensing model that allowed the project to tap into engineering resources from all around the world. Both quality and speed improvements are still happening, probably making LAME the only MP3 encoder still being actively developed.

Following the great history of GNU naming, LAME originally stood for LAME Ain't an Mp3 Encoder. LAME started life as a GPL'd patch against the dist10 ISO demonstration source, and thus was incapable of producing an mp3 stream or even being compiled by itself. But in May 2000, the last remnants of the ISO source code were replaced, and now LAME is the source code for a fully LGPL'd MP3 encoder, with speed and quality to rival and often surpass all commercial competitors.

LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to use the open source model to improve the psycho acoustics, noise shaping and speed of MP3. LAME is not for everyone - it is distributed as source code only and requires the ability to use a C compiler. However, many popular ripping and encoding programs include the LAME encoding engine, see: Software which uses LAME.

Using the LAME encoding engine (or other mp3 encoding technology) in your software may require a patent license in some countries.

LAME features:

• Many improvements in quality in speed over ISO reference software. See history.
• MPEG1,2 and 2.5 layer III encoding.
• CBR (constant bitrate) and two types of variable bitrate, VBR and ABR.
• Encoding engine can be compiled as a shared library (Linux/UNIX), DLL , Directshow filter or ACM codec (Windows).
• Free format encoding and decoding.
• GPSYCHO: a GPL'd psycho acoustic and noise shaping model.
• Powerful and easy to use presets.
• Quality better than all other encoders at most bitrates.
• Fast! Encodes faster than real time on a PII 266 at highest quality mode.
• MP3x: a GTK/X-Window MP3 frame analyzer for both .mp3 and unencoded audio files.

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MediaCoder

MediaCoder is a free universal batch media transcoder, which nicely integrates most popular audio/video codecs and tools into an all-in-one solution. With a flexible and extendable architecture, new codecs and tools are added in constantly as well as supports for new devices. MediaCoder intends to be the swiss army knife for media transcoding in all time. Millions of people are using the software all over the world.

Features In Brief

• Converting to between most popular audio and video formats in batch
• Multi-threading design, optimized for multi-core processors (average CPU utilization on quad-core processors over 90%)
• Full control over transcoding parameters
• Simplified UI for popular mobile devices (e.g. PSP, iPhone/iPod)
• Fully standalone, no dependancy on system codecs/splitters
• Media Transcoding Platform to expand UI and improve user experience

Typical Applications

• Improving compression / reducing size for audio/video files
• Converting for audio/video playback devices (digital audio player, MP4 player, mobile phone, PDA, PSP, VCD/DVD player etc.)
• Extracting audio tracks from video files
• Ripping audio/video discs
• Reparing corrupted or partial downloaded video files

Supported Fomats

• MP3, Vorbis, AAC, AAC+/HE-AAC, AAC+v2/HE-AAC v2, MusePack, Speex, AMR, WMA, RealAudio, mp3PRO*
• FLAC, WavPack, Monkey's Audio, OptimFrog, AAC Lossless, TTA, WAV/PCM, Waveform
• H.264, XviD, DivX, MPEG 1/2/4, Theora, Flash Video, Dirac, 3ivx*, RealVideo*, Windows Media Video
• AVI, MPEG/VOB, Matroska, MP4, PMP, RealMedia*, ASF, Quicktime*, OGM*
• CD, DVD, VCD, SVCD, CUESheet*, HTTP*, FTP*, RTSP*, UDP*

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CDex

CDex can extract the data directly (digital) from an Audio CD, which is generally called a CD Ripper or a CDDA utility. The resulting audio file can be a plain WAV file (useful for making compilation audio CDs) or the ripped audio data can be compressed using an audio encoder. Many encoders are supported, to name a few:

• Lame MP3 encoder
• Internal MP2 encoder
• APE lossles audio format
• Ogg Vorbis encoder
• The Windows MP3 encoder (Fraunhofer MP3 encoder)
• NTT VQF encoder
• FAAC encoder
• Windows WMA8 encoder

In addition, WAV files on the hard drive can be converted to a Compressed Audio File (and visa versa). CDex also supports many audio file tag formats like the ID3V1 and ID3V2 tags, which can be automatically inserted as part of the ripping process.

Feature List

• Direct recording of multiple tracks
• Read / store album information from/to the cdplayer.ini file
• Read / store album information from/to a local and/or remote CD Database (CDDB)
• Support CD-Text (if your CD-drive supports it)
• Advanced jitter correction (based on the cd-paranoia ripping library)
• Indicates track progress and jitter control
• Normalization of audio signal
• Supports many CD-Drive from many manufacters
• Conversion of external WAV files
• Support for M3U and PLS play list files
• Best of all, it's free (GPL license, source code available)
• Serveral languages are supported

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