cdstatus checks for drive errors, outputs disc information (such as type and table of contents), and is capable of ripping full CDs, using configurable track ranges and retry counts. It handles cddb lookups and makes use of per-user .cdstatus configuration files. It usually produces identical output to cdparanoia with much faster execution. It features direct-to-lame MP3 encoding and Ogg Vorbis encoding, as well as twolame support.
The CMU Midi Toolkit (CMT) is a collection of software for writing interactive MIDI software in C. It includes a number of handy utilities along with an application "shell" that provides timing, scheduling, and MIDI interfaces that are portable across DOS, Mac, SGI, and Amiga platforms.
DTMF2NUM is a tool for decoding DTMF and MF tones from PCM wave files. It supports any type of wave file, automatic optimizations (DC bias adjust and normalization), and both WAV and raw PCM data. The program has been successfully tested with many audio files, including ones that are highly dirty and damaged (for example, recorded with a microphone in a room or at very low volumes or with some noise).
Find Duplicate Music Files detects music files that contain the same music, even if the files are differently named, and are in different formats such as MP3, OGG, WAV, WMA, M4A, and RealAudio and contain different or non-existent meta-information such as ID3 tags. The program operates on whole directories of music files, analyzes them, and outputs the filenames of pairs that seem similar, based on their audio fingerprint or perceptual hash.
Freedup finds and eliminates duplicate files by linking them, and thus reduces the amount of used disk space within one or more file systems. By default, hardlinks are used on a single device, symbolic links when the devices differ. A set of options allows you to modify the methods of file comparison, the hash functions, the linking behavior, and the reporting style. You may use batch or interactive mode. Freedup usually only considers identical files, but when comparing audio or graphics files, you may elect to ignore the tags.