question: How do people remove the vocals from a song and leave the instrumental part completely intact? How does a computer know which sounds are someone’s voice and how to isolate them from the music?
comment: Usually the instrumental is released as a separate track by the studio. A computer can't remove vocals perfectly, so while it is possible, you'll still hear traces of the voice, and the instrumental will be distorted.
passages: Wasserman has been interviewed about the way the Ableton software has been incorporated into "Dear Evan Hansen"'s multimedia production.
  
  The show's Original Broadway Cast Recording was released digitally on February 3, 2017 and in compact disc on February 24, 2017. It won a Grammy Award for Best Musical Theater Album in 2018. 
  
  Wasserman is also credited as Ableton Programmer on the Broadway production of "Natasha, Pierre & The Great Comet of 1812", and as Rehearsal Pianist for the La Jolla Playhouse production of the Jimmy Buffett musical "Escape to Margaritaville".
   In some instances, most notably The Chipmunks, manipulation of voices may be employed, either to achieve a desired vocal effect, or to make it dissimilar to the voice of the actual singer. The manipulation is done by either modifying the playback speed of the vocal track or by putting it through a synthesizer (Vocoding).
  
  Writing and production credits may be assigned to either the virtual band characters, or the human writers and artists involved.
  
  Section::::Production.:On stage.
   Sounds can be stored as Programs, which include the instrument source, effects types, and settings. There are 400 storage locations – 4 banks with 100 programs in each – all of which can be overwritten with user programs. There are 300 independent storage locations for Synth patches.
   In December 2010, Sonik Architects was acquired by software and music production company iZotope, and at the Winter NAMM Show in January 2011, the Stutter Edit plug-in, based on BT's patented technique of real-time manipulation of digital audio, was released by iZotope and BT.
  
  Section::::Software.:Other software.
   Abramson produced An educational series of YouTube videos explains the 5-step method of making music with ModelTalker, with a 6th video showing a real-time bounce of a Logic Pro project with ModelTalker samples "singing"
  
  Tucker Stilley another musician with ALS, shared his custom KeyStrokes keyboard layout for Logic Pro, Abramson's Digital Audio Workstation without which he says,"Would have made what I do impossible"
   Digital Sound Factory employs musicians and performs detailed recordings of their instruments. The recordings are processed using digital signal processors and mapped to a MIDI piano keyboard. Modern music, television, movies, and advertisements are composed using these sounds by electronic musicians Using software synthesizers, composers can have a large collection of sound content on command.
   The vocoder was originally designed to aid in the transmission of voices over telephony systems. In musical applications the original sounds, either from vocals or from other sources such as instruments, are used and fed into a system of filters and noise generators. The input is fed through band-pass filters to separate the tonal characteristics which then trigger noise generators. The sounds generated are mixed back with some of the original sound and this gives the effect.
   The recording of the music is done by the human musicians and artists, whom the virtual artists are depicted to emulate. In some cases, the singing is done by machines or synthesizer applications, like the Hatsune Miku vocaloid. This is done using the normal in-studio recording process; see Sound recording for a detailed explanation.
   In 2016 he began a series of projects for the Bristol-based band Massive Attack, beginning with "Fantom", an app that created unique interactive remixes of the band’s new release Ritual Spirit based on facial expressions, location, movement, and various other user inputs.
   Computer music was added to the Walden School Musicianship and Composition curriculum in 2000, when a computer lab was first installed. The lab uses Apple Power Mac computers, each supplied with Digidesign Mbox hardware and Reaper software. Students use a Digital Audio Tape (DAT) recorder with a stereo microphone to record sounds, and then later upload these recordings to the Power Macs and begin composing electronic pieces primarily using Reaper software. Other popular pieces of software used among Walden School students to manipulate the sounds they record are Soundhack. Max/MSP is a more sophisticated digital audio signal processing application and is used exclusively among the Walden School faculty.
   In 2009, "Time" magazine quoted an unnamed Grammy-winning recording engineer as saying, "Let's just say I've had Auto-Tune save vocals on everything from Britney Spears to Bollywood cast albums. And every singer now presumes that you'll just run their voice through the box." The same article expressed "hope that pop's fetish for uniform perfect pitch will fade", speculating that pop-music songs have become harder to differentiate from one another, as "track after track has perfect pitch." According to Tom Lord-Alge the device is used on nearly every record these days.
   In most conventional synthesizers, for purposes of re-synthesis, recordings of real instruments are composed of several components representing the acoustic responses of different parts of the instrument, the sounds produced by the instrument during different parts of a performance, or the behavior of the instrument under different playing conditions (pitch, intensity of playing, fingering, etc.)
  
  Section::::Components.
   Modular software music studio
  
  A modular software music studio consists of a plugin architecture that allows the audio to be routed from one plugin to another in many ways, similar to how cables carry an audio signal between physical pieces of hardware.
  
  All aspects of signal synthesis and manipulation are handled entirely by the plugin system. Signal synthesis is performed by "Generators" such as synthesizers, noise generator functions, samplers, and trackers. The signal can then be manipulated further by "Effects" such as distortions, filters, delays, and mastering plugins.
  
  Section::::List of software with modular capabilities.
   "They let me go up in a little room and see the movie. It was funny: I was living in Manhattan, downtown on 19th street. So when I got to the crib, me and wifey, she knew I was zoning in the cab. When I got to the crib, I had my studio in a little room. I went straight up into the room and found the sample. The bass line. I took the bass line and put the regular drum sample underneath that shit. Half an hour later I had the lights off because I was in there zoning. Wifey came in; I was like, 'Turn the lights off and close the door back.' About an hour later, I came out of there with three verses, man. It was crazy."
   In 2012 Dave Pensado featured a "J.R." Hutson produced song called "Missing You" on his "Pensado's Place: Into The Lair Episode #37". Dave explains his mixing techniques for pad synths on the song.
   Valve has termed this dynamic set-up "procedural narrative". In addition to the AI Director, there is a second Director that controls music. It was created as a way to keep the music interesting throughout the game. The music Director monitors what a player has experienced to create an appropriate mix. The process is client-side and done by a multi-track system. Each player hears their own mix, which is being generated as they play through the game, and dead players watching a teammate hear their teammates' mix.
   In "Pattern Recognition", a 2003 novel by William Gibson, the main character's mother tries to convince her that her father is communicating with her from recordings after his death/disappearance in the September 11, 2001 attacks.'
  
  Section::::Cultural impact.:Theater and music.
  
  In "Nyctivoe" a 2001 vampire-inspired play by Dimitris Lyacos the male character as well as his deceased companion are speaking from a recording device amidst a static/white noise background.
   Beardyman further states: "The system is built from the ground up in C++ and Objective-C by Dave Gamble of DMGAudio and employs 15 instances and counting of a partly bespoke version of Sugarbytes' incredible linear-8-way-morph-engine controlled multi-effect 'Turnado'. Guitar rig is also used along with Rob Papen's delay. The system is controlled using two iPads running bespoke programs using a specially developed high definition, self-reconnecting protocol."
   Common functionality of cyber-collection systems include:
  
  BULLET::::- "Data scan": local and network storage are scanned to find and copy files of interest, these are often documents, spreadsheets, design files such as Autocad files and system files such as the passwd file.
  
  BULLET::::- "Capture location": GPS, WiFi, network information and other attached sensors are used to determine the location and movement of the infiltrated device
  
  BULLET::::- "Bug": the device microphone can be activated in order to record audio. Likewise, audio streams intended for the local speakers can be intercepted at the device level and recorded.
   BULLET::::2. Snare drum - 1 voice sample through synthesis chain
  
  BULLET::::3. Hi-Hat - 2 voice samples (open/closed) through synthesis chain
  
  BULLET::::4. Percussion drum kit - 12 samples through common synthesis chain
  
  BULLET::::5. (chromatic) Synth 1
  
  BULLET::::6. (chromatic) Synth 2
  
  BULLET::::7. (chromatic) Synth 3
  
  ...where the first 4 tracks can only load patches from 2 banks (1 Rom and 1 User ) of 96 User patches of that instrument, but all 3 (chromatic) Synth parts can load from a common pool of 4 banks (3 Rom & 1 User) of 96 keyboard patches. 
   The music video was filmed in the mansion at 2218 S Harvard Blvd in Los Angeles, a location frequently used for movies / TV / music videos.
  
  Section::::Song versions.
   Several Mega Drive games use a sound engine unofficially known as "SMPS", which has been researched for decades by many hackers. As of today, various tools exist to alter the music of games which use the SMPS engine ("Sonic the Hedgehog" games in particular), and many of them made their way to the Steam Workshop.
  
  Section::::Methods.:ROM expansion.
   Section::::Development.:Audio.
   Section::::History.
   CASA attempts to recreate sound source separation in the same manner as human hearing, but in machines. Using the principles of CASA, Audience’s earSmart processors act like a human cochlea and group different sounds, based on a diverse list of cues such as pitch, onset/offset time, spatial location and harmonicity. These simultaneous sounds are evaluated and grouped by source. In doing this, the microphones of a mobile device, together with Audience's proprietary "Fast Cochlea Transform" technology, can identify and group sounds which are classified as noise, remove or at least reduce them, and leave the remaining clear voice signal intact.
  
presuppositions: A computer can isolate someone's voice from music.
corrections: A computer can't remove vocals perfectly, therefor the instrumental is released as a separate track.
raw_presuppositions: A computer can isolate someone's voice from music. A computer can isolate someone's voice from music.
raw_corrections: A computer can't remove vocals perfectly, therefor the instrumental is released as a separate track. A computer can't remove vocals perfectly, so while it is possible, you'll still hear traces of the voice, and the instrumental will be distorted.