An analog signal is any continuous signal for which the time-varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signal. For example, in an analog audio signal, the instantaneous voltage of the signal varies continuously with the pressure of the sound waves. It differs from a digital signal, in which the continuous quantity is a representation of a sequence of discrete values which can only take on one of a finite number of values. The term analog signal usually refers to electrical signals; however, mechanical, pneumatic, hydraulic, human speech, and other systems may also convey or be considered analog signals.
In electronics, an analog-to-digital converter is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide an isolated measurement such as an electronic device that converts an input analog voltage or current to a digital number representing the magnitude of the voltage or current. Typically the digital output is a two's complement binary number that is proportional to the input, but there are other possibilities.
Signal-to-noise and distortion ratio (SINAD) is a measure of the quality of a signal from a communications device, often defined as
In electronics, a digital-to-analog converter is a system that converts a digital signal into an analog signal. An analog-to-digital converter (ADC) performs the reverse function.
Sound can be recorded and stored and played using either digital or analog techniques. Both techniques introduce errors and distortions in the sound, and these methods can be systematically compared. Musicians and listeners have argued over the superiority of digital versus analog sound recordings. Arguments for analog systems include the absence of fundamental error mechanisms which are present in digital audio systems, including aliasing and quantization noise. Advocates of digital point to the high levels of performance possible with digital audio, including excellent linearity in the audible band and low levels of noise and distortion.
Busted are an English rock band from Southend-on-Sea, Essex, consisting of James Bourne, Matt Willis and Charlie Simpson. Formed in 2000, the band had four UK number-one singles, won two Brit awards and have released four studio albums, selling in excess of five million records. The band released - Busted (2002) and A Present for Everyone (2003) - before disbanding in January 2005. Following the split, all three members pursued separate musical careers: Simpson as the frontman for the post-hardcore band Fightstar, Bourne as the lead singer of pop punk band Son of Dork and Willis as a solo artist.
McFly are an English band formed in London in 2003. The band took its name from the Back to the Future character Marty McFly. The band consists of Tom Fletcher, Danny Jones, Dougie Poynter and Harry Judd (drums). They were signed to Island Records from their 2004 launch until December 2007, before creating their own label, Super Records.
Dougie Lee Poynter is an English musician, songwriter, fashion model, clothing designer, author, actor and philanthropist. He is the bassist and youngest member of the pop rock band McFly, as well as bassist for A. In 2018, he formed the rock band INK. with fellow members, Todd Dorigo, vocals and guitar, and Corey Alexander, drums.
A noise gate or gate is an electronic device or software that is used to control the volume of an audio signal. Comparable to a compressor, which attenuates signals above a threshold, such as loud attacks from the start of musical notes, noise gates attenuate signals that register below the threshold. However, noise gates attenuate signals by a fixed amount, known as the range. In its simplest form, a noise gate allows a main signal to pass through only when it is above a set threshold: the gate is 'open'. If the signal falls below the threshold, no signal is allowed to pass : the gate is 'closed'. A noise gate is used when the level of the 'signal' is above the level of the unwanted 'noise'. The threshold is set above the level of the 'noise' and so when there is no main 'signal', the gate is closed.
In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate. Theoretically, a bandwidth-limited signal can be perfectly reconstructed if sampled at the Nyquist rate or above it. The Nyquist rate is defined as twice the highest frequency component in the signal. Oversampling is capable of improving resolution, reducing noise and can be helpful in avoiding aliasing and phase distortion by relaxing anti-aliasing filter performance requirements.
Watchtower is an American progressive metal band based in Austin, Texas. The band was influenced by a number of acts, such as Pink Floyd, Black Sabbath, Led Zeppelin, UFO, Rush and U.K., as well as the burgeoning new wave of British heavy metal scene. Although Watchtower never reached mainstream success, they have been cited as an influence by many other progressive metal bands, such as Dream Theater, Death, Atheist, Sieges Even and Spiral Architect. The band is also notable for featuring vocalist Jason McMaster, who left after the release of their debut album to form Dangerous Toys. Watchtower has released two studio albums, one compilation album, four digital singles, one EP and three demo cassettes, and has been featured on many compilation albums.
Analogue electronics are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term "analogue" describes the proportional relationship between a signal and a voltage or current that represents the signal. The word analogue is derived from the Greek word ανάλογος (analogos) meaning "proportional".
"Party Girl" is a song by British pop rock band McFly. It was released as the lead single from their fifth studio album, Above the Noise (2010). The song premiered on UK radio on 14 July 2010 on In:Demand, and was released on 5 September 2010, where it debuted at number 6 on the UK Singles Chart; marking the band's sixteenth Top 10 single to date.
"Shine a Light" is the second single from English band McFly's fifth studio album, Above the Noise. The single features vocals from singer Taio Cruz. The single was released on 7 November 2010 via digital download, with a physical release following the next day. A free download was available for members of the band's new website, SuperCity. The song received mostly positive reviews from pop music critics. On 3 November 2010, the song was added to BBC Radio 1's A-List. The song peaked the number 9 in UK Airplay Chart. McFly secured their fifteenth Top 5 hit with "Shine a Light" on the UK Singles Chart.
"That's the Truth" is the third single from McFly's fifth studio album, Above the Noise. The single was first confirmed by band members Tom Fletcher and Dougie Poynter in a web chat on the group's official website, SuperCity. Graham Norton premiered the song on British radio on 15 January 2011, on his drivetime slot on BBC Radio 2. The single was released on 7 March 2011.
McBusted were an English pop-punk supergroup composed of members from bands McFly and Busted. The only member of the original groups not participating in the new lineup was former Busted guitarist and vocalist Charlie Simpson, who instead opted to focus on his solo career and his band Fightstar.
