Hamilton Mausoleum, Hamilton, South Lanarkshire, Scotland: Its high stone means it takes 15 seconds for the sound of a slammed door to delay.Inchindown oil tanks, current record holder for longest reverberation.Arrows illustrate the outgoing and incoming path of sound. In the 2000s, most echo effects units use electronic or digital circuitry to recreate the echo effect.Įcholocation organs of a toothed whale, which produce echoes and receive sounds. Beginning in the 1970s, Market built the solid-state Echoplex for Maestro. While Echoplexes were used heavily by guitar players (and the occasional bass player, such as Chuck Rainey, or trumpeter, such as Don Ellis), many recording studios also used the Echoplex. Designed by Mike Battle, the Echoplex set a standard for the effect in the 1960s and was used by most of the notable guitar players of the era original Echoplexes are highly sought after. The Echoplex is a tape delay effect, first made in 1959 that recreates the sound of an acoustic echo. In music performance and recording, electric echo effects have been used since the 1950s. Echoes may be desirable (as in sonar) or undesirable (as in telephone systems). The strength of echo is frequently measured in dB sound pressure level (SPL) relative to the directly transmitted wave. In nature, canyon walls or rock cliffs facing water are the most common natural settings for hearing echoes. When a sound produces an echo in two seconds, the reflecting object is 343 m away. Therefore, the reflecting object must be more than 17.2 m from the sound source for echo to be perceived by a person located at the source. The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 ☌. The human ear cannot distinguish echo from the original direct sound if the delay is less than 1/10 of a second. This illustration depicts the principle of sediment echo sounding, which uses a narrow beam of high energy and low frequency Echofon ha un sistema di notifica (che puoi disattivare se non vuoi essere disturbato) e ti permette di collegarti a qualsiasi pagina web presente nei tweet. When sound, or the echo itself, is reflected multiple times from multiple surfaces, the echo is characterized as a reverberation. Inoltre, Echofon ti consente di aggiungere più di un account in modo da poter, per esempio, alternare il tuo account personale e il tuo account di lavoro. This can be heard when the reflection returns with sufficient magnitude and delay to be perceived distinctly. The reason of reflection may be explained as a discontinuity in the propagation medium. Echoes are also the basis of Sonar technology.Īcoustic waves are reflected by walls or other hard surfaces, such as mountains and privacy fences. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats in a process known as echolocation. Echo in the Greek folk story is a mountain nymph whose ability to speak was cursed, leaving her able only to repeat the last words spoken to her. The word echo derives from the Greek ἠχώ ( ēchō), itself from ἦχος ( ēchos), "sound". A true echo is a single reflection of the sound source. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound.
Echofon full#
+ Refine the location of your tweets sent with our Location PickerĮchofon also affords you the full Twitter functionality you would expect from an award winning Twitter app including robust tweet creation, trending topics, list management and Twitter profile editing features.Reflection of sound delayed after direct sound as heard by listener + Select a read later service from Instapaper, Readability or Pocket + Personalize Echofon by choosing from 6 custom themes + Search nearby tweets with Maps integration + Capture and tweet rich media directly from Echofon or load existing media from your iOS device + Supports the most popular services including Instagram and YouTube + Images are previewed within your Twitter timeline + Access ALL your Twitter accounts simultaneously + Mute selected users, hashtags and other nuisances within your Twitter timeline + Threaded Conversation Mode simplifies exchanges with your Twitter followers + LiveLinks on your timeline take you instantly to detailed content Echofon is wrapped in a beautiful, clean interface that delivers powerful extras to enable you to manage your busy social media life on Twitter. Echofon is the fastest, most powerful Twitter app for iPhone, iPod Touch and iPad and the ONLY app with Inline Photo Previews!
0 kommentar(er)
