A Mac OSX GUI frontend for open source audio codecs. There is an older Windows version available as well.

A Mac OSX GUI frontend for open source audio codecs. There is an older Windows version available as well.

Website that cuts, converts or merges a file. Supports multiple audio formats.
AIMP is a powerful free audio player for Windows OS that supports for local files, NAS, clouds and podcasts. Additionally, it includes powerful tools to operate with audio files.
Multi-format Playback:
.CDA, .AAC, .AC3, .APE, .DTS, .FLAC, .IT, .MIDI, .MO3, .MOD, .M4A, .M4B,
.MP1, .MP2, .MP3, .MPC, .MTM, .OFR, .OGG, .OPUS, .RMI, .S3M, .SPX, .TAK,
.TTA, .UMX, .WAV, .WMA, .WV, .XM, .DSF, .DFF, MKA, AA3, AT3, OMA, .WebM,
.MPEG-DASH (YouTube)

www.aimp.ru
aimp2.us
Icons:
aablab.deviantart.com/art/Aimp-3-anthracite-icons-260461145
www.deviantart.com/aablab/art/AIMP3-BW-Icons-190763277
Skins:
aablab.deviantart.com/art/AIMP-3-Skin-Editor-258029733
www.deviantart.com/ddkonstantinov/art/A-Graph-ver-1-0-294252760
www.deviantart.com/merydev/art/MetalikGlass-Light-for-AIMP3-258995954
www.deviantart.com/yamshikoff/art/Metro-for-AIMP3-v3-Final-279912238
www.deviantart.com/raidero1/art/ZiX-for-AIMP3-273232347
www.myaimp.com/skins
angelag.ucoz.ru
VU Meter Skins:
www.aimp.ru/forum/index.php?topic=52865.0
Online database that compares the performance of common sample rate converters.
A soundboard that supports almost all MP3s and WAVs. Sounds can be triggered with custom keyboard hot-keys and played through up to 2 outputs. i.e. Your speakers and a virtual audio cable. Also allows for your mic to pass into the virtual audio cable when enabling Mic Injector. This soundboard also incorporates a save feature.
Features:
- Easy to use soundboard app, allows soundboards to be saved.
- Use keyboard hotkeys to trigger sounds
- Play sounds through a virtual audio cable and still be able to hear them through your speakers
- Includes Mic Injector to route sound from your mic into your virtual audio cable
- Includes converter tool for converting almost any audio file into a compatible one

sourceforge.net/projects/expsoundboard
How To Use Microphone While Using Soundboard (Using Mic Injector)
Kabuu Audio Converter is a multithreaded audio converter and extractor. It can convert any file to mp3, m4a, flac, alac, wav, ogg, opus. You can also extract audio from video files like mp4, avi, vob, mkv, webm, etc.
Kabuu Audio Converter has several built in presets which make encoding even easier. You can also create your own presets, adjust encoding parameters like bitrate, channel count, sampling rate, bit depth, compression ratio.
Kabuu Audio Converter can extract audio streams from video files. Even if the video file in question has more than one audio stream, Kabuu Audio Converter gives you the option to select the one you want to extract. If your audio tracks have language information, you can configure Kabuu Audio Converter so it can select the language you want for you.

kabuusoft.com/product/detail/2/kabuu-audio-converter
www.fosshub.com/Kabuu-Audio-Converter
sourceforge.net/projects/kabuuaudioconverter
MediaHuman Audio Converter is a freeware application for Mac OSX and Windows. It can help you to convert your music absolutely free to WMA, MP3, AAC, WAV, FLAC, OGG, AIFF, Apple Lossless format and bunch of others.
- Simple and intuitive interface
- Converts between all key audio formats
- Splits tracks by CUE sheet
- Exports to iTunes
- Converts multiple files simultaneously
- Keeps the folder structure
- Extracts audio track from video

XMedia Recode can convert almost all known audio and video formats, including 3GP, 3GPP, 3GPP2, AAC, AC3, ADTS, AMR, ASF, AVI, AVISynth, DVD, FLAC, FLV, H.261, H.263, H.264, H.265, M4A , M1V, M2V, M4V, Matroska (MKV), MMF, MPEG-1, MPEG-2, MPEG-4, TS, TRP, MP2, MP3, MP4, MP4V, MOV, QT, OGG, PSP, RM, (S ) VCD, SWF, VOB, WAV, WebM, WMA and WMV.
XMedia Recode can only convert unprotected DVDs.

TAudioConverter is a audio converter and extractor. It can convert almost any audio format to aac, ac3, mp3, flac, wav, ogg, opus or mpc. SoX is used to apply effects such as normalization, volume change etc. It can also extract audio streams from video files and encode them. Video files with more than one audio stream is supported. It is possible to run up to 8 simultaneous processes to shorten encoding time.

ozok.users.sourceforge.net
Download
Source
Wiki
Hydrogen Audio Topic
Doom9 Topic
LameXP is a free multi-format audio file converter that supports a variety of output formats, including MP3, AAC/MP4, Ogg Vorbis, Opus, as well as FLAC, and an even higher number of input formats. It also supports batch processing and can utilize multiple processor cores.

Free application that converts audio files to MP3, AAC, AC3, WMA, FLAC, M4A, OGG, WV, AIFF or WAV format. Moreover, the program allows extraction of audio tracks from video files without loss of sound quality. Supported input formats: over 70 audio and video formats, including AVI, MP4, MP3, MOV, FLV, 3GP, M4A, MKV, WMA.

FlicFlac is a portable (no installation required) utility for converting WAV, FLAC, MP3, OGG and APE files to any of the other formats.
You may drag files onto the FlicFlac interface, or convert files directly from the right click menu in Windows Explorer.
