Time stretching

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Time stretching may refer to:

Time dilation actual difference of elapsed time between two events as measured by observers either moving relative to each other or differently situated from gravitational masses

According to the theory of relativity, time dilation is a difference in the elapsed time measured by two observers, either due to a velocity difference relative to each other, or by being differently situated relative to a gravitational field. As a result of the nature of spacetime, a clock that is moving relative to an observer will be measured to tick slower than a clock that is at rest in the observer's own frame of reference. A clock that is under the influence of a stronger gravitational field than an observer's will also be measured to tick slower than the observer's own clock.

The time-stretch analog-to-digital converter (TS-ADC), also known as the time stretch enhanced recorder (TiSER), is an analog-to-digital converter (ADC) system that has the capability of digitizing very high bandwidth signals that cannot be captured by conventional electronic ADCs. Alternatively, it is also known as the photonic time stretch (PTS) digitizer, since it uses an optical frontend. It relies on the process of time-stretch, which effectively slows down the analog signal in time before it can be digitized by a slow electronic ADC.

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Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals. As audio signals may be represented in either digital or analog format, processing may occur in either domain. Analog processors operate directly on the electrical signal, while digital processors operate mathematically on the digital representation of that signal.

Compact disc Optical disc for storage and playback of digital audio

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. The format was originally developed to store and play only sound recordings (CD-DA) but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Disc (VCD), Super Video Compact Disc (SVCD), Photo CD, PictureCD, CD-i, and Enhanced Music CD. The first commercially available audio CD player, the Sony CDP-101, was released October 1982 in Japan.

Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch.

Granular synthesis is a basic sound synthesis method that operates on the microsound time scale.

Ardour (software) free Digital Audio Workstation

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.

Steinberg Cubase Digital audio workstation

Cubase is a digital audio workstation (DAW) developed by Steinberg for music and MIDI recording, arranging and editing. The first version, which was originally only a MIDI sequencer and ran on the Atari ST computer, was released in 1989. Cut-down versions of Cubase are included with almost all Yamaha audio and MIDI hardware, as well as hardware from other manufacturers. These versions can be upgraded to a more advanced version at a discount.

Audio Units (AU) are a system-level plug-in architecture provided by Core Audio in Apple's macOS and iOS operating systems. Audio Units are a set of application programming interface (API) services provided by the operating system to generate, process, receive, or otherwise manipulate streams of audio in near-real-time with minimal latency. It may be thought of as Apple's architectural equivalent to another popular plug-in format, Steinberg's Virtual Studio Technology (VST).

Rose Mary Woods Personal secretary to the President Richard Nixon

Rose Mary Woods was Richard Nixon's secretary from his days in Congress in 1951, through the end of his political career. Before H. R. Haldeman and John Ehrlichman became the operators of Nixon's presidential campaign, Woods was Nixon's gatekeeper.

Acid Pro 8 is a professional digital audio workstation (DAW) software program developed by MAGIX Software GmbH. It was originally called "Acid pH1" and published by Sonic Foundry, which was later merged into Sony to create Sony Creative Software. On May 20, 2016 it was announced that MAGIX acquired the bulk of Sony's creative software suite, including ACID Pro. ACID Pro 8, the first version of Acid Pro since MAGIX's acquisition of Sony's Creative Software line, was released in spring 2018. The update came with new modern features including an enhanced interface, support for 64bit, added samples, VST3 support, and more.

LiVES

LiVES is a free video editing software and VJ tool, released under the GNU General Public License version 3 or later. There are binary versions available for most popular Linux distributions. There are also ports for BSD, and it will run under Solaris and IRIX. It has been compiled under OS X Leopard, but not thoroughly tested on that platform

Pitch shift sound recording technique

Pitch shifting is a sound recording technique in which the original pitch of a sound is raised or lowered. Effects units that raise or lower pitch by a pre-designated musical interval (transposition) are called pitch shifters or pitch benders.

WaveLab

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.

<i>Around the World in 80 Days</i> (Michael Palin book) Michael Palin book

Around the World in 80 Days is the book that Michael Palin wrote to accompany the BBC TV program Around the World in 80 Days with Michael Palin.

WPAR is a Contemporary Christian formatted broadcast radio station licensed to Salem, Virginia; with studios in Lynchburg. It is the flagship station of Positive Alternative Radio, which is headquartered in Blacksburg.

Logic Studio software

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.

Qtractor hard disk recorder and digital audio workstation application for Linux

Qtractor is a hard disk recorder and digital audio workstation application for Linux. Qtractor is written in C++ and is based on the Qt framework. Its author is Rui Nuno Capela, who is also responsible for the Qjackctl, Qsynth and Qsampler line of Linux audio software. Qtractor's intention is to provide digital audio workstation software simple enough for the average home user, and yet powerful enough for the professional user.

Limousine luxury sedan or saloon car generally driven by a chauffeur

A limousine is a luxury vehicle driven by a chauffeur with a partition between the driver's compartment and the passenger's compartment.

Celemony Software GmbH is a German musical software company that specializes in digital audio pitch correction software. It produces Melodyne, a popular audio pitch modification tool similar to Auto-Tune.

In digital audio editing, scrubbing is an interaction in which a user drags a cursor or playhead across a segment of a waveform to hear it. Scrubbing is a convenient way to quickly navigate an audio file, and is a common feature of modern DAWs and other audio editing software. The term comes from the early days of the recording industry and refers to the process of physically moving tape reels to locate a specific point in the audio track; this gave the engineer the impression that the tape was being scrubbed, or cleaned. Common scrubbing feedback techniques include:

GNOME SoundConverter free software

GNOME SoundConverter is a unofficial GNOME-based free and open-source transcoder for digital audio files. It uses GStreamer for input and output files. It has multi threaded design and can also extract the audio from video files.