When audio files are to be processed, either by further compression or for editing, it is desirable to work from an unchanged original ( uncompressed or losslessly compressed ).

When a pedal is off or inactive, the electric audio signal coming in to the pedal is diverted onto a " bypass ", resulting in a " dry " signal which continues on to other effects down the chain.

When processing signals, such as audio, radio waves, light waves, seismic waves, and even images, Fourier analysis can isolate individual components of a compound waveform, concentrating them for easier detection and / or removal.

When the music is stored in an audio file format that is lossless such as FLAC, Monkey's Audio or WMA Lossless, the computer playback of recorded audio can serve as an audiophile-quality source for a hi-fi system.

When synchronizing multiple clock-dependent digital devices together with video, such as digital audio recorders, the devices must be connected to a common word clock signal that is derived from the house black burst signal.

When introduced in the early 1990s, it had a number of unique features, such as “ sync slip ”, synchronized varispeed playback with audio scrubbing, synchronized multi-channel playback, and an object-oriented user interface with a dedicated hardware console.

When the called party picks up the handset, they actuate a double-circuit switchhook ( not shown ) which simultaneously disconnects the alerting device and connects the audio circuitry to the line.

It was released on DVD for the first time on January 9, 2001, and included an audio commentary by Reiner, a 35-minute " Making Of " documentary featuring interviews with Reiner, Ephron, Crystal, and Ryan, seven deleted scenes, and a music video for " It Had To Be You " by Harry Connick, Jr. A Collector's Edition DVD was released on January 15, 2008, including a new audio commentary with Reiner, Ephron, and Crystal, eight deleted scenes, all new featurettes ( It All Started Like This, Stories Of Love, When Rob Met Billy, Billy On Harry, I Love New York, What Harry Meeting Sally Meant, So Can Men And Women Really Be Friends?

When sound film was introduced in 1926, variations in film speed were no longer tolerated as the human ear is more sensitive to changes in audio frequency.

When loading coils are in place, signal attenuation remains low for signals within the passband of the transmission line but increases rapidly for frequencies above the audio cutoff frequency.

When a signal with little or no noise is received, the noise-derived voltage goes away and the receiver audio is unmuted.

When hash functions and fingerprints are used to identify similar data, such as homologous DNA sequences or similar audio files, the functions are designed so as to maximize the probability of collision between distinct but similar data.

When Kreisel's business partner, Jonas Miller, who owned a high-end audio store in Los Angeles, told Kreisel that some purchasers of the store's high-end electrostatic speakers had complained about a lack of bass response in the electrostatics, Kreisel designed a powered woofer that would reproduce only those frequencies that were too low for the electrostatic speakers to convey.

When the new samples are played at the original sampling frequency, the audio clip sounds faster or slower.

When RealAudio was introduced, RealNetworks disclosed no technical details about the audio format or how it was encoded, but it was soon noticed that some of the audio codecs used in RealAudio were identical to those used in cellular telephones and digital television.

; Voice Activity Detection ( VAD ): When enabled, voice activity detection detects whether the audio being encoded is speech or silence / background noise.

When audio from an audio CD is imported by dragging to the Mac OS X Desktop, the resulting file is also an AIFF-C / sowt.

When a book of his memoirs was published in 2004, it included an audio CD with the calls as well as a Chick Hearn Rap-Around rap song created with the samples.

When ingesting audio or video feeds, metadata are attached to the clip.

When the TV is tuned to the programmed channel, the video and audio signal of the source device is accessed.

When telephone exchanges were mechanical, a tap had to be installed by technicians, linking circuits together to route the audio signal from the call.

When looking for a long-term partner more conventional altruism may be preferred which may indicate that he is also willing to share resources with her and her children while when looking for a short-term partner heroic risk-taking, which may be costly signal showing good genes, may be more preferable.

When the Israelites, led by Joshua toward the Promised Land, arrived at the banks of the River Jordan, the Ark was carried in the lead preceding the people and was the signal for their advance ( Joshua 3: 3, 6 ).

When compressed, the crystal produces a small electrical current, so when placed under the bridge saddle, the vibrations of the strings through the saddle, and of the body of the instrument, are converted to a weak electrical signal.

When analog television was developed, no affordable technology for storing any video signals existed ; the luminance signal has to be generated and transmitted at the same time at which it is displayed on the CRT.

When gastric hydrochloric acid reaches the nerves in the gastrointestinal mucosa, they signal pain to the central nervous system.

When the signal drive to the amplifier is increased, the output also increases until a point is reached where some part of the amplifier becomes saturated and cannot produce any more output ; this is called clipping, and results in distortion.

When conjugation is initiated by a signal the relaxase enzyme creates a nick in one of the strands of the conjugative plasmid at the oriT.

When the Laplace transform is performed on a discrete-time signal ( with each element of the discrete-time sequence attached to a correspondingly delayed unit impulse ), the result is precisely the Z transform of the discrete-time sequence with the substitution of

When the key was not in use, that switch was kept closed, so that a signal was continually sent.

When she was half a mile away, Baralong ran up a signal flag indicating that she was going to rescue Nicosians crew.

When Datis surrendered and was ready for retreat, the Ionians climbed the trees and gave the Athenians the signal that the cavalry had left.

When the Athenian line was ready, according to one source, the simple signal to advance was given by Miltiades: " At them ".

When the trumpet signal for the start rang out, Antony's fleet began issuing from the straits, and the ships moved into line and remained quiet.

When the infant BBC Television service was started in 1936, Rediffusion, which had supplied cable radio services since 1928, started providing " Pipe TV " to its customers who had difficulties tuning into the weak TV broadcast signal.

When the bridge was in use, boaters would signal the operator, who would start a diesel engine and rotate the bridge to the open position on a large gear.

When the keyboard processor detects that a key has changed state, it sends a signal to the CPU indicating the scan code of the key and its new state.

When Greek orthography was codified by grammarians in the Hellenistic era, they used a diacritic symbol derived from this half-H shape to signal the presence of / h /, and added as its counterpart a reverse-shaped diacritic to denote absence of / h /.

When the power supply to the amplifier is first switched on, electronic noise in the circuit provides a signal to get oscillations started.

When such a system is subject to an impulse ( or any signal of finite duration ) it will respond with an output waveform which lasts past the duration of the input, eventually decaying exponentially in one or another manner, but never completely settling to zero ( mathematically speaking ).

When a pilot moves the control column ( or sidestick ), a signal is sent to a computer ( analogous to moving a game controller ) the signal is sent through multiple wires ( channels ) to ensure that the signal reaches the computer.

When it appeared that the revolt would succeed, the Thrintun elders built and used a psychic amplifier that forced every sentient being in the galaxy to commit suicide, the signal repeating for centuries.