Question: The album "Who Sampled This?" was created by Rob swift who specializes in creating original sounds and beats, which involve what device?
Context: SWR2 Archivradio, commonly referred to as Archivradio is an internet radio network by the German public broadcasting corporation SWR.  It specialises in streaming historic original sounds, interviews, speeches in German language from German audio archives.  The web radio stream is accompanied by a web portal which provides written information about the currently aired sound segment.  A major principle of Archivradio is that original sounds are unedited and played back in full length.  Typical topics in the past have been original recordings by the East German secret police Stasi, the complete proceedings of the first literature congress in Berlin after World War II (Erster Deutscher Schriftstellerkongress) or sounds from World War I, most of them recorded on Phonograph cylinders. Archivradio also gives a voice to the archivists.  They appear in interviews about the specific topics of the program.  The internet radio consists mainly of spoken word and only broadcasts music in a specific context.  Archivradio has no typical presenter; there is only a speaker who briefly announces each title, the date and the source. The Ablist is the second album by the turntablist Rob Swift.  It was released on February 23, 1999, by Asphodel Records and was produced by Rob Swift and Dan The Automator.  Like Swift's previous album, "The Ablist" received positive reviews.  The rapper Pharoahe Monch makes an appearance. Soulful Fruit is the first album by the turntablist, Rob Swift.  It was released on May 13, 1997, by Stones Throw Records and was produced by Rob Swift, Mista Sinista and Roc Raida.  The album was a huge critical success, gaining many positive reviews.  "Soulful Fruit" is regarded by many as one of the best turntablism albums ever made. Champion Sounds is the fourth album released by Roc Raida.  It was released on October 7, 2003 for DMC Records and featured production by Roc Raida, Rob Swift, D-Styles and DJ Radar. Back to the Beat is the ninth album by the turntablist Rob Swift.  It was released on February 13, 2003, by On the Strength Records and was produced by Rob Swift. Turntablism is the art of manipulating sounds and creating new music, sound effects, mixes and other creative sounds and beats, typically by using two or more turntables and a cross fader-equipped DJ mixer.  The mixer is plugged into a PA system for live events and/or broadcasting equipment (if the DJ is performing on radio, TV or Internet radio, so that a wider audience can hear the turntablist's music.  Turntablists manipulate records on a turntable by moving the record with their hand to cue the stylus to exact points on a record, and by touching or moving the platter or record to stop, slow down, speed up or, spin the record backwards, or moving the turntable platter back and forth (the popular rhythmic "scratching" effect which is a key part of hip hop music), all while using a DJ mixer's crossfader control and the mixer's gain and equalization controls to adjust the sound and level of each turntable.  Turntablists typically use two or more turntables and headphones to cue up desired start points on different records. Ground Xero is the first studio album by American DJ group Ill Insanity, which consists of a composition of three members of New York City DJ group The X-Ecutioners, Rob Swift, Total Eclipse and DJ Precision.  It was released on February 11, 2008 for Ablist Productions and was produced by Rob Swift, Total Eclipse and DJ Precision, with additional production from Roc Raida of The X-Ecutioners and DJ Q-Bert. Who Sampled This?  is the sixth album by the turntablist, Rob Swift.  It was released on November 1, 2003, by Day By Day Entertainment and was produced by Rob Swift, MF Grimm and Dr. Butcher.  The album sold poorly and did not make it to the "Billboard" charts or produce any charting singles. Under the Influence is the fifth album by the turntablist, Rob Swift.  It was released on April 1, 2003, by Six Degrees Records and was produced by Rob Swift and Dr. Butcher.  The album consists of remixes to songs by other artists like DJ Quik, Marley Marl and Davy DMX. OuMuPo 2 is the seventh album by the turntablist, Rob Swift.  It was released on October 19, 2004, by the French record label Ici, d'ailleurs... Records.  It was produced by Rob Swift.
Answer: turntables