Energy (signal processing)

In signal processing, the energy of a continuous-time signal x(t) is defined as

the energy of a discrete-time signal x(t) is defined as

Relationship to energy in physics

Energy in this context is not, strictly speaking, the same as the conventional notion of energy in physics and the other sciences. The two concepts are, however, closely related, and it is possible to convert from one to the other:

For example, if x(t) represents the potential (in volts) of an electrical signal propagating across a transmission line, then Z would represent the characteristic impedance (in ohms) of the transmission line. The units of measure for the signal energy would appear as volt²·seconds, which is not dimensionally correct for energy in the sense of the physical sciences. After dividing by Z, however, the dimensions of E would become volt²·seconds per ohm, which is equivalent to joules, the SI unit for energy as defined in the physical sciences.

Spectral energy density

Energy (Drake song)

"Energy" is the second single by Canadian rapper Drake from his fourth commercial release If You're Reading This It's Too Late.

Composition

"Energy" contains samples from Eazy-Duz-It performed by Eazy-E and Ridin Spiners performed by Three 6 Mafia. Energy was produced by Boi-1da and OB O'Brien. According to WhoSampled the song samples the score of an episode of The O.C..

Critical reception

"Energy" received acclaim from music critics with many calling it the best song of the album. Ryan Dombal of Pitchfork gave the song a positive review and named it "Best New Track", stating "The song isn't aimed to any rappers or pop stars, not Kendrick Lamar, Big Sean or Tyga, but the song lines are dangerous."

Music video

Release

The video of "Energy" was released on Apple Music and users with iTunes and registered Apple Music account can watch this video.

Synopsis

Energy (Melissa Manchester song)

"Energy" is a song performed by American singer Melissa Manchester, from her 1985 album Mathematics.

Details

The song was arranged by veteran songwriter Greg Mathieson and was released as the second single from the album, following the underperformance of the lead single "Mathematics", MCA hoped to reverse the album's fortune by releasing this Hi-NRG track with an aim for the club market.

Melissa Manchester filmed a videoclip to promote the song, which sees the singer and her band in a sort of industrial-setting stage performing the song.

The single was released on 7" and 12" formats featuring remixes, but it failed to chart either on the Billboard Hot 100 or the dance charts, and failed to chart elsewhere. The b-side to the single was a non-album song, called "So Full Of Yourself", which was co-written by Manchester and Tom Snow and used as the b-side to all 3 singles off the album.

Track listings

Film (band)

Film was a Yugoslav rock group founded in 1978 in Zagreb. Film was one of the most popular rock groups of the former Yugoslav new wave in the late 1970s to early 1980s.

History

New wave years (1979-1981)

During 1977 and 1978, bassist Marino Pelajić, guitarist Mladen Jurčić, and drummer Branko Hromatko were Azra members when Branimir "Johnny" Štulić brought Jura Stublić as the new vocalist. Stublić was to become Aerodrom member, but due to his deep vocals it never happened. The lineup functioned for a few months only and after a quarrel with Štulić, on early 1979, Pelajić, Jurčić, Hromatko and Stublić formed the band Šporko Šalaporko i Negove Žaluzine, naming the band after a story from the "Polet" youth magazine, which was soon after renamed to Film. The memories of the Azra lineup later inspired Štulić to write the song "Roll over Jura" released on Filigranski pločnici in 1982.

Saxophonist Jurij Novoselić, who at the time had worked under the pseudonym Kuzma Videosex, joined the band, inspiring others to use pseudonym instead of their original names: vocalist Stublić became Jura Jupiter, bassist Pelajić became Mario Baraccuda and guitarist Jurčić became Max Wilson. Before joining the band, Stublić did not have much experience as a vocalist, however, since his father had been an opera singer, he often visited the theatre and opera, and at the age of 13, he started playing the guitar, earning money as a street performer at seaside resorts.

Film (Iranian magazine)

Film (Persian:فیلم) is an Iranian film review magazine published for more than 30 years. The head-editor is Massoud Mehrabi.

References

External links

Television film

A television film (also known as a TV film; television movie; TV movie; telefilm; telemovie; made-for-television film; direct-to-TV film; movie of the week (MOTW or MOW); feature-length drama; single drama and original movie) is a feature-length motion picture that is produced for, and originally distributed by or to, a television network, in contrast to theatrical films, which are made explicitly for initial showing in movie theaters.

Origins and history

Though not exactly labelled as such, there were early precedents for "television movies", such as Talk Faster, Mister, which aired on WABD (now WNYW) in New York City on December 18, 1944, and was produced by RKO Pictures, or the 1957 The Pied Piper of Hamelin, based on the poem by Robert Browning, and starring Van Johnson, one of the first filmed "family musicals" made directly for television. That film was made in Technicolor, a first for television, which ordinarily used color processes originated by specific networks (most "family musicals" of the time, such as Peter Pan, were not filmed but broadcast live and preserved on kinescope, a recording of a television program made by filming the picture from a video monitor – and the only method of recording a television program until the invention of videotape).