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1.8.8p4 / December 30, 2011
|Type||Digital audio editor|
WaveSurfer is an audio editor widely used for studies of acoustic phonetics. It is a simple but fairly powerful program for interactive display of sound pressure waveforms, spectral sections, spectrograms, pitch tracks and transcriptions. It can read and write a number of transcription file formats used in industrial speech research including TIMIT.
Acoustic phonetics is a subfield of phonetics, which deals with acoustic aspects of speech sounds. Acoustic phonetics investigates time domain features such as the mean squared amplitude of a waveform, its duration, its fundamental frequency, or frequency domain features such as the frequency spectrum, or even combined spectrotemporal features and the relationship of these properties to other branches of phonetics, and to abstract linguistic concepts such as phonemes, phrases, or utterances.
TIMIT is a corpus of phonemically and lexically transcribed speech of American English speakers of different sexes and dialects. Each transcribed element has been delineated in time.
WaveSurfer is free software, distributed under a permissive free software licence.
Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, not price: users—individually or in cooperation with computer programmers—are free to do what they want with their copies of a free software regardless of how much is paid to obtain the program. Computer programs are deemed free insofar as they give users ultimate control over the first, thereby allowing them to control what their devices are programmed to do.
Wavesurfer provides basic audio editing operations, such as excision, copying, pasting, zero-crossing adjustment, and effects such as fading, normalization, echo, inversion, reversal, replacement with silence, and DC-removal, but, in view of its scientific orientation, does not offer effects of interest to musicians such as flange.
Flanging is an audio effect produced by mixing two identical signals together, one signal delayed by a small and gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and notches are produced in the resulting frequency spectrum, related to each other in a linear harmonic series. Varying the time delay causes these to sweep up and down the frequency spectrum. A flanger is an effects unit that creates this effect.
Wavesurfer is written in Tcl/Tk using the Snack audio library. It therefore runs on most platforms, including Microsoft Windows, Mac OS X, Linux, Solaris, HP-UX, FreeBSD, and IRIX. It is scriptable and supports plugins.
Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft. Each family caters to a certain sector of the computing industry. Active Windows families include Windows NT and Windows Embedded; these may encompass subfamilies, e.g. Windows Embedded Compact or Windows Server. Defunct Windows families include Windows 9x, Windows Mobile and Windows Phone.
Linux is a family of free and open-source software operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution.
Solaris is a Unix operating system originally developed by Sun Microsystems. It superseded their earlier SunOS in 1993. In 2010, after the Sun acquisition by Oracle, it was renamed Oracle Solaris.
Ardour is a hard disk recorder and digital audio workstation application that runs on Linux, macOS, FreeBSD and Microsoft Windows. Its primary author is Paul Davis, who is also responsible for the JACK Audio Connection Kit. Ardour is intended to be digital audio workstation software suitable for professional use.
Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS/OS X and Unix-like operating systems. Audacity was started in the fall of 1999 by Dominic Mazzoni and Roger Dannenberg at Carnegie Mellon University and was released on May 28, 2000 as version 0.8.
FL Studio is a digital audio workstation developed by the Belgian company Image-Line. FL Studio features a graphical user interface based on a pattern-based music sequencer. The program is available in four different editions for Microsoft Windows and macOS, including Fruity Edition, Producer Edition, Signature Bundle, and All Plugins Bundle. Image-Line offers lifetime free updates to the program, which means customers receive all future updates of the software for free. Image-Line also develops FL Studio Mobile for iPod Touch, iPhone, iPad and Android devices.
Virtual Studio Technology (VST) is an audio plug-in software interface that integrates software synthesizer and effects in digital audio workstations. VST and similar technologies use digital signal processing to simulate traditional recording studio hardware in software. Thousands of plugins exist, both commercial and freeware, and a large number of audio applications support VST under license from its creator, Steinberg.
A digital audio workstation (DAW) is an electronic device or application software used for recording, editing and producing audio files. DAWs come in a wide variety of configurations from a single software program on a laptop, to an integrated stand-alone unit, all the way to a highly complex configuration of numerous components controlled by a central computer. Regardless of configuration, modern DAWs have a central interface that allows the user to alter and mix multiple recordings and tracks into a final produced piece.
Rosegarden is a free software digital audio workstation program developed for Linux with ALSA and Qt4. It acts as an audio and MIDI sequencer, scorewriter and musical composition and editing tool. It is intended to be a free alternative to such applications as Cubase.
Audio editing software is software which allows editing and generating of audio data. Audio editing software can be implemented completely or partly as library, as computer application, as Web application or as a loadable kernel module. Wave Editors are digital audio editors and there are many sources of software available to perform this function. Most can edit music, apply effects and filters, adjust stereo channels etc.
OpenAL is a cross-platform audio application programming interface (API). It is designed for efficient rendering of multichannel three-dimensional positional audio. Its API style and conventions deliberately resemble those of OpenGL. OpenAL is an environmental 3D audio library, which can add realism to a game by simulating attenuation, the Doppler effect, and material densities. OpenAL aimed to originally be an open standard and open-source replacement for proprietary 3D audio systems such as EAX and A3D. While the reference implementation later became proprietary, there are open source implementations such as OpenAL Soft available.
3D audio effects are a group of sound effects that manipulate the sound produced by stereo speakers, surround-sound speakers, speaker-arrays, or headphones. This frequently involves the virtual placement of sound sources anywhere in three-dimensional space, including behind, above or below the listener.
Disposable Soft Synth Interface (DSSI) is a virtual instrument plugin architecture for use by music sequencer applications. It was designed for applications running under Linux, although there is nothing specific to Linux in the interface itself. It is distributed under the terms of a combination of GNU Lesser General Public License and some BSD licenses, all of which are free software licences.
GoldWave is a commercial digital audio editing software product developed by GoldWave Inc, first released to the public in April 1993.
FreeSurfer is a brain imaging software package developed by the Athinoula A. Martinos Center for Biomedical Imaging at Massachusetts General Hospital for analyzing magnetic resonance imaging (MRI) scan data. It is an important tool in functional brain mapping and facilitates the visualization of the functional regions of the highly folded cerebral cortex. It contains tools to conduct both volume based and surface based analysis, which primarily use the white matter surface. FreeSurfer includes tools for the reconstruction of topologically correct and geometrically accurate models of both the gray/white and pial surfaces, for measuring cortical thickness, surface area and folding, and for computing inter-subject registration based on the pattern of cortical folds. In addition, an automated labeling of 35 non-cortical regions is included in the package.
Gnome Wave Cleaner (GWC) is a digital audio editor application. The graphical user interface for the editor has been produced employing GTK+ for the GUI widgets. Its primary author is Jeff Welty.
WaveLab is a digital audio editor and recording computer software application for Windows and macOS, created by Steinberg. WaveLab was started in 1995 and it is mainly the work of one programmer, Philippe Goutier.
Logic Studio was a music production suite by Apple Inc. The first version of Logic Studio was unveiled on September 12, 2007. It claims to be the largest collection of modeled instruments, sampler instruments, effect plug-ins, and audio loops ever put in a single application.
MAGIX Sequoia is a digital audio workstation. It is the most powerful of the MAGIX audio software family, essentially offering a superset of MAGIX Samplitude's functionality. Sequoia is purely software-based, making it independent of proprietary audio hardware.
Making Waves (MW) is computer software designed to produce professional quality audio from basic Windows multimedia PCs. This application was among the first of the 16-bit digital sequencers that evolved from the MS-DOS WAV trackers of the Eighties to become the digital audio workstation software available today including Steinberg Cubase, Pro Tools and ACID Pro. Making Waves enabled a small community of independent artists to use existing hardware to record, sample, mix and render their own original work creating professional-quality audio with a modest investment of less than $100. This same dynamic user community played a significant role in the application's development, suggesting program revisions and performing extensive beta testing. These users were all organized and mentored by Stephen John Steele, the original programmer and developer of Making Waves as well as a founding director of Perceptive Solutions, Spacehead Systems and Making Waves Software Limited.
WavePad Audio Editor Software is an audio and music editor for Windows and Mac. It lets users record and/or edit music, voice and other audio recordings. As an editor, users can cut, copy, paste, delete, insert, silence, and auto-trim recordings, then add effects like amplify, normalize, equalize, envelope, reverb, echo, reverse, and more with the help of VST plugin support and a free stock audio library.
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