Talk:Noise print

Physics Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
Low	This article has been rated as Low-importance on the project's importance scale.

Professional sound production Low‑importance

	This article is within the scope of WikiProject Professional sound production, a collaborative effort to improve the coverage of sound recording and reproduction on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Professional sound productionWikipedia:WikiProject Professional sound productionTemplate:WikiProject Professional sound productionProfessional sound production
Low	This article has been rated as Low-importance on the project's importance scale.

This article is entirely inadequate to the task it takes in hand.

Dark-frame subtraction is hardly analogous... It's used to subtract errors inherent in the recording medium itself.

"Noise print" is a naive (not adaptive) background noise cancellation technique that assumes there are spectral components with high ubiquity that can be removed to produce an overall improvement in the quality of a recording. Phase-cancellation is an adaptive method that is similar, using a simultaneous recorded "noise" channel which is then subtracted. These techniques may be well suited to live performance situations, but are no longer considered adequate for recorded material, which can be enhanced at leisure using digital filters developed by non-linear analysis (repeated listenings of played-back content). — Preceding unsigned comment added by 131.215.115.31 (talk) 17:01, 11 July 2013 (UTC)Reply

Add topic