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Shoutcast / Icecast Library for IDJC

soundgrab is designed to help you slice up a big long raw audio file (by default 44.1 kHz 2 channel signed sixteen bit little endian) and save your favorite sections to other files. It does this by providing you with a cassette player like command line interface. Commands like ff <secs>, rw <secs>, jump <offset_from_start> can be used while the volume is being played or while it is stopped to move the player head around. The commands mark and name allow you to give names to sections between the mark and the current position of the player head (like emacs mark and point concept), and the export command exports the named sections to other files in wav, cdr (CD mastering), or raw format (or ogg or flac format if the appropriate encoder binaries are found on your system).

This program allows you to record the output of any standard OSS program (one that uses /dev/dsp for sound) without having to modify or recompile the program. It uses the same idea as the esddsp wrapper from the Enlightened Sound Daemon (in fact, vsound is based on esddsp). That is, it preloads a library that intercepts calls to open /dev/dsp, and instead returns a handle to a normal file. It also intercepts ioctl's on that file handle and logs them, to help convert the audio data from its raw form. Vsound then uses sox to convert the raw data to the desired file format. The upshoot of this is that instead of playing sound to the sound card in your computer, the data is recorded to a file. This is similar to if you connected a loopback cable to the line in and line out jacks on your sound card, but no DA or AD conversions take place, so quality is not lost.

GKrellMSS displays a VU meter showing left and right channel audio levels and also has a chart that shows combined left and right audio channels as an oscilloscope trace. There are two buttons to the left of the VU Meter which select an oscope horizontal sweep speed ranging from 100 microseconds (usec) per division to 50 milliseconds (msec) per division. There are 5 horizontal divisions, so a trace sweep time can range from 500 usec (1/2000 sec) to 250 msec (1/4 sec). The oscope trace is triggered by a positive zero crossing of audio signal to give nice stable displays. There is also a sensitivity level adjustment for the VU Meter and oscope chart. Use the mouse wheel to adjust, or left click and drag sensitivity krell.

MOC (music on console) is a console audio player designed to be powerful and easy to use. MOC plays smoothly, regardless of system or I/O load, because it handles the output buffer in a separate thread. It does not cause gaps between files, because the next file to be played is pre-cached while playing the current file. Supported file formats are: MP3, Ogg Vorbis, FLAC, Musepack (mpc), Speex, WAVE, AIFF, AU, SVX, Sphere Nist WAV, IRCAM SF, Creative VOC, AAC, MP4, Real, WMA.

This is version 1.6P-7 of GramoFile (patches are from the debian package). With this program you can record audio of (for example) gramophone records, process the signal and listen to the results. Because sound files of the .WAV-format are used, it is possible to exchange the files with many other programs. Cdrecord(1) can burn CD-Recordables of these, so you can make CDs with the music of your favorite records. The user interface of GramoFile has a windows-like look-and-feel, making it fairly easy to use. One of the most important parts of GramoFile is the ability to process digital audio signals. Through the application of several filters it is possible to accomplish a significant reduction of disturbances like ticks and scratches. Another interesting feature is the track splitting. Just make one .wav file of an entire side of an record and GramoFile will detect where the individual tracks are located. This happens fully automatically, without need to set any options. More experienced users may fine-tune the algorithm, or change the detected track starts and ends, but generally that will not be necessary. Track-times are saved in an editable (plaintext) .tracks file, that will be used during the signal processing to produce one processed .wav file for each individual track.