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"What do wow and flutter sound like?"

Analog mediums such as audio tape and vinyl (phonograph) occasionally suffer from a wavering speed distortion called "wow and flutter". I demonstrate artificially induced W&F in this video [at an unusually high level, so it is easy to hear] so people will know what it sounds like. It's usually inaudible on better systems but the ear is more sensitive to it on some material, especially with pure tones and long, sustained piano and flute notes. LP: Funk and Wagnalls, The Joy of Great Music, Frederic Chopin, Piano Concerto in F minor, Fantasy-Impromptu in C-sharp minor manufactured by RCA Custom FW-502, Rena Kyriakou, piano, Album 2 side 2. Here's a link to what this piece is supposed to sound like:    • Chopin - Fantaisie-Impromptu (Op. 66)   LEGAL DISCLAIMER: The short, incomplete song excerpts are posted for noncommercial, nonprofit, educational/research purposes of audio sound reproduction equipment accuracy assessment under the fair use doctrine of Title 17 U.S. Code § 107 - Limitations on exclusive rights: Fair use "Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include— (1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;"