Cdrdao ~ Disk-At-Once Recording


Cdrdao records audio or data CD-Rs in disk-at-once (DAO) mode based on a textual description of the CD contents.

Advantages of Disk-At-Once (DAO) Recording:

Recording in disk-at-once mode writes the complete disc, i.e. lead-in, one or more tracks and lead-out, in a single step. The commonly used track-at-once (TAO) mode writes each track independently which requires link blocks between two tracks. Older CD-recorder models forced a two second pause (pre-gap) between two tracks whereas newer models allow adjusting of the pause length in TAO mode reducing the number of link blocks to a minimal amount. However, with TAO it is generally not possible to define the data that is written in pre-gaps. But exactly this feature makes audio CD recording interesting, e.g. by creating hidden bonus tracks or track intros in pre-gaps like it is common habit on commercial CDs. Finally, DAO recording is the only way to write data to the unused R-W sub-channels for e.g.  CD-G or CD-TEXT.

Features:

  • Full control over length and contents of pre-gaps (pause areas between tracks). Pre-gaps may be completely omitted, e.g. for dividing live recordings into tracks.
  • Control over sub-channel data like:
    • catalog number
    • copy, pre-emphasis, 2-/4-channel flags
    • ISRC code
    • index marks
  • Support for exact audio, data and mixed mode CD copying.
  • Support for R-W sub-channel writing.
  • Tracks may be composed of different audio files supporting non destructive cut.
  • Accepts WAVE and raw audio files.
  • CD-TEXT reading and writing with drives that support it.
  • CDDB access to automatically create CD-TEXT data.
  • Support for on-the-fly copying.

cdrdao.sourceforge.net
github.com/cdrdao
wiki.hydrogenaud.io/index.php?title=Cdrdao
en.wikipedia.org/wiki/Cdrdao

Frontend (GUI):
gcdmaster
cdrdao.sourceforge.net/gcdmaster

DarkIce ~ Live Audio Streamer


DarkIce records audio from an audio interface (e.g. sound card), encodes it and sends it to a streaming server.

DarkIce can record from:

  • OSS audio devices
  • ALSA audio devices
  • Solaris audio interface
  • Jack sources
  • uLaw audio input through a serial interface
  • CoreAudio (branch darkice-macosx)

DarkIce can encode in the following formats:

  • MP3 – using the lame library
  • MP2 – using the twolame library
  • Ogg Vorbis
  • AAC LC – using the faac library
  • AAC HEv2 – using libaacplus library
  • Opus – using Xiph’s libopus library
  • Vorbis – using Xiph’s libvorbis library

DarkIce can send the encoded stream to the following streaming servers:

www.darkice.org
sourceforge.net/projects/darkice

jack-keyboard ~ Virtual Keyboard For JACK MIDI


jack-keyboard is a virtual MIDI keyboard – a program that allows you to send JACK MIDI events ( 😉 play using your PC keyboard). It’s BSD-licensed. User interface is GTK-based.

jack-keyboard

sourceforge.net/projects/jack-keyboard

fmedia ~ Cross-platform Audio Interface


fmedia is a fast media player/recorder/converter for Windows, macOS, Linux and FreeBSD. It provides smooth playback and recording even if devices are very slow. It’s highly customizable and can be easily extended with additional plugins. Its low CPU & memory consumption saves energy when running on a notebook’s battery.

Play or convert audio files, record new audio tracks from microphone, save songs from Internet radio, and much more! fmedia is free and open-source project, and you can use it as a standalone application or as a library for your own software.

fmedia

stsaz.github.io/fmedia
github.com/stsaz/fmedia

Snd ~ Unix Sound Editor


Snd is a sound editor modelled loosely after Emacs. It can be customized and extended using either s7 (included in the Snd sources), Ruby, or Forth. Snd is free; the code is available via anonymous FTP as Snd tarball.

Snd

ccrma.stanford.edu/software/snd/
ccrma.stanford.edu/software/snd/snd/snd
sourceforge.net/projects/snd

Aften ~ Create Stereo & Multi-channel Audio


Aften is an audio encoder which generates compressed audio streams based on ATSC A/52 specification. This type of audio is also known as AC-3 or Dolby® Digital and is one of the audio codecs used in DVD-Video content.

Features:

  • Converts PCM source audio into AC-3 audio
  • Allows for setting of production metadata such as dialogue level, downmix levels, and extended bitstream information
  • Supports RAW, WAV, AIFF, and CAFF input file formats
  • Supports single multi-channel or multiple mono source files
  • Includes several optional pre-processing filters
  • Uses multi-threading and assembly optimizations to speed up encoding

 
aften.sourceforge.net