EKO is small and simple sound editor based on Qt5/6, Portaudio, libsndfile and libsamplerate. It has basic editing, utility and analysis functions, the rack with realtime effects (not so much), GUI themes and palettes support.
sox_ng is another Swiss Army Knife of sound processing utilities. It can convert audio files to other popular audio file types and also apply sound effects and filters during the conversion.
The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system. ALSA has the following significant features: Efficient support for all types of audio interfaces, from consumer sound cards to professional multichannel audio interfaces. Fully modularized sound drivers. SMP and thread-safe design. User space library (alsa-lib) to simplify application programming and provide higher level functionality. Support for the older Open
Play the healing frequencies of various sets of tuning forks: Solfeggio, Organs, Mineral nutrients, Ohm, Chakras, Cosmic Octave, Otto, Tesla 3-6-9, DNA nucleotides... or custom frequencies. It also shows a data visualization of all frequencies on the same scale.
liblo is an implementation of the Open Sound Control protocol for POSIX systems, started by Steve Harris and now maintained by Stephen Sinclair. It is released under the GNU Lesser General Public Licence version 2.1 or greater. This means that if it is included in closed-source systems, it must be dynamically linked such that the LibLO code remains freely modifiable.
SoundTouch is an open-source audio processing library for changing the Tempo, Pitch and Playback Rates of audio streams or audio files. The library additionally supports estimating stable beats-per-minute rates for audio tracks. Tempo (time stretch): Changes the sound to play at faster or slower tempo than originally without affecting the sound pitch. Pitch (key) : Changes the sound pitch or key while keeping the original tempo (speed). Playback Rate : Changes both tempo and pitch together as i
Pydiogment aims to simplify audio augmentation. It generates multiple audio files based on a starting mono audio file. The library can generates files with higher speed, slower, and different tones etc.
Beast is a music composition and modular synthesis application. As input methods, it offers a multitrack editor, a piano roll, and supports pattern editing. It has a wide range of technical abilities like sequencing, unlimited undo/redo history, real-time synthesis with multiprocessor support, full duplex 32-bit audio rendering, seeking at sample granularity, on demand loading of partial wave files, on the fly decoding of various sample formats, aliasing free oscillators, and full scripting supp
cdrtools (formerly cdrecord) creates home-burned CDs/DVDs with a CDR/CDRW/DVD/BluRay recorder. It works as a burn engine for several applications. It supports CD/DVD/BD recorders from many different vendors; all SCSI-3/mmc- and ATAPI/mmc-compliant drives should also work. Supported features include IDE/ATAPI, parallel port, and SCSI drives; audio CDs, data CDs, and mixed CDs; full multi-session support; CD-RWs, DVD-R/-RW, DVD+R/+RW, BD-R/BD-RE; and TAO, DAO, RAW, and human-readable error message
PlayShell is a simple console-based application for playing media files in Linux using known media players like SoX, VLC, MPlayer and FFplay as backend.
GNU Solfege is *free* ear training software written in Python 3.4 using the Gtk+ 3 toolkit. The program is designed to be easily extended with lesson files (data files), so the user can create new exercises.
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