Category Archives: Unix

UNIX audio applications, tools or utilities

JAMin ~ JACK Mastering Interface

Posted by tom2tec on

JAMin is the JACK Audio Connection Kit (JACK) Audio Mastering interface. JAMin is an open source application designed to perform professional audio mastering of stereo input streams. It uses LADSPA for digital signal processing (DSP). JAMin is licensed under the GPL.

Features:

  • Linear filters
  • JACK I/O
  • 30 band graphic EQ
  • 1023 band hand drawn EQ with parametric controls
  • Spectrum analyser
  • 3 band peak compressor
  • Lookahead brickwall limiter
  • Multiband stereo processing
  • Presets and scenes
  • Loudness maximizer

jamin

jamin.sourceforge.net

foo_dsp_vlevel ~ Dynamic Normalization

Posted by tom2tec on

VLevel keeps your music from making you jump out of your seat, and it keeps you from having to fiddle with the volume constantly. It’s different from other dynamic compressors because it looks ahead. You can think of VLevel as someone who knows your music by heart, and turns the volume up during quiet passages, but smoothly turns it back down when he knows a loud part is coming. It’s great for making CDs to listen to in your car, or to play background music on your computer.

Vlevel

vlevel.sourceforge.net
HydrogenAudio Topic
HydrogenAudio Wiki

WaveSurfer ~ Visualize & Manipulate Sound

Posted by tom2tec on

WaveSurfer is an open source tool for sound visualization and manipulation. Typical applications are speech / sound analysis and sound annotation / transcription. WaveSurfer may be extended by plug-ins as well as embedded in other applications.
Features:

  • Customizable – users can create their own configurations. Localization support.
  • Extensible – new functionality can be added through a plugin architecture.
  • Embeddable – WaveSurfer can be used as a widget in custom applications.
  • Transcription file formats – reads, and writes HTK (and MLF), TIMIT, ESPS/Waves+, and Phondat. Support for encodings and Unicode.
  • Multi-platform – Linux, OSX & Windows.
WaveSurfer

sourceforge.net/projects/wavesurfer
en.wikipedia.org/wiki/WaveSurfer

MP3val ~ Validate Your mp3s

Posted by tom2tec on

MP3val is a small, high-speed, free software tool for checking MPEG audio files’ integrity. It can be useful for finding corrupted files (e.g. incompletely downloaded, truncated, containing garbage). MP3val is also able to fix most of the problems. Being a multi-platform application, MP3val can be run both under Windows and under Linux (or BSD).

The most common MPEG audio file type is MPEG 1 Layer III (mp3), but MP3val supports also other MPEG versions and layers. The tool is also aware of the most common types of tags (ID3v1, ID3v2, APEv2).

mp3val

mp3val.sourceforge.net

Frontend ~ github.com/cfgnunes/wxmp3val

eSpeak ~ Open Source Speech Synthesizer

Posted by tom2tec on

eSpeak is a compact open source Linux and Windows speech synthesizer for English and other languages. eSpeak uses a “formant synthesis” method. This allows many languages to be provided in a small size. The speech is clear, and can be used at high speeds, but is not as natural or smooth as larger synthesizers which are based on human speech recordings.

eSpeak is available as:

  • A command line program (Linux and Windows) to speak text from a file or from stdin.
  • A shared library version for use by other programs. (On Windows this is a DLL).
  • A SAPI5 version for Windows, so it can be used with screen-readers and other programs that support the Windows SAPI5 interface.
  • eSpeak has been ported to other platforms, including Android, Mac OSX and Solaris.

speak.sourceforge.net

Squash ~ Learning Music Player

Posted by tom2tec on

Squash is a C / Ncurses based Unix music player. It supports mp3, ogg and flac through libraries. Squash uses statistics to determine songs to play automatically. It garners this information through whether or not a song is skipped. Squash also avoids picking the same song twice. Thus Squash is like a radio station that plays the songs you like — and you don’t even have to call in requests!

savannah.nongnu.org

Sweep ~ Unix Audio Editor

Posted by tom2tec on

Sweep is an audio editor and live playback tool for GNU/Linux, BSD and compatible systems. It supports many music and voice formats including WAV, AIFF, Ogg Vorbis, Speex and mp3, with multichannel editing and LADSPA effects plugins.

sweep_20060117_mini

www.metadecks.org/software/sweep

Levelator ~ Enhance Your Podcast

Posted by tom2tec on

Levelator® adjusts the audio levels within your podcast or other audio file for variations from one speaker to the next, for example. It’s not a compressor, normalizer or limiter although it contains all three. It’s much more than those tools, and it’s much simpler to use. The UI is dirt-simple: Drag-and-drop any WAV or AIFF file onto The Leveler’s application window, and a few moments later you’ll find a new version which just sounds better.

 
www.conversationsnetwork.org/levelator

bs2b ~ Bauer Stereophonic-To-Binaural Headphone DSP

Posted by tom2tec on

A typical stereo records are being made to listen by speakers. That is a sound engineer makes the stereo mix to the adaptation of sound for listening of one channel by both ears. Therefore, you will be tired during a long time headphone listening more by a super-stereo effect than by a poor design of headphones. What’s missing in headphones is the sound going from each channel to the opposite ear, arriving a short time later for the extra distance traveled, and with a bit of high frequency roll-off for the shadowing effect of the head. And the time delay to the far ear is somewhat longer at low frequencies than at high frequencies. The Bauer stereophonic-to-binaural DSP (bs2b) is designed to improve headphone listening of stereo audio records…

bs2b.sourceforge.net

Denemo ~ Freeware Music Notation

Posted by tom2tec on

Denemo is a free music notation program for GNU/Linux, Mac OSX and Windows that lets you rapidly enter notation which it typesets using the LilyPond music engraver. Music can be typed in at the PC-Keyboard, played in via MIDI controller, or input acoustically into a microphone plugged into your computer’s soundcard.

www.denemo.org

Opus ~ Interactive Audio Codec

Posted by tom2tec on

Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors. Opus replaces both Vorbis and Speex for new applications, and several blind listening tests have ranked it higher-quality than any other standard audio format at any given bitrate until transparency is reached, including MP3, AAC and HE-AAC.

en.wikipedia.org/wiki/Opus_(audio_format)

opus-codec.org
opus-codec.org/downloads
github.com/xiph/opus/releases

Opus Tools ~ hydrogenaud.io/index.php/topic,124025
Opus Gapless ~ hydrogenaud.io/index.php?topic=116605.msg984924#msg984924

Opusrug ~ Based on opus 1.3.1-64 Good Opus encoder for Windows.(command line, you can use it with a GUI like Foobar2000 copying it in the encoders folder). You can also compile it for Linux, with the modified celtencoder.c.

github.com/fabiorug/Opusrug

Pure-Go Opus codec (RFC 6716), zero cgo. A bit-exact port of libopus, differential-tested against the C reference: the decoder passes all 12 RFC conformance vectors, and the CELT encoder produces byte-identical packets.

github.com/tphakala/go-opus

mopidy ~ Extensible Music Server

Posted by tom2tec on

Written in Python, Mopidy plays music from a local disk, Spotify, SoundCloud, Google Play Music, and more. You edit the playlist from any phone, tablet, or computer using a range of MPD and web clients.

mopidy-screenshot

www.mopidy.com