![Gabriel Peyré on Twitter: "Oldies but goldies: N. Ahmed, T. Natarajan, K. R. Rao, Discrete Cosine Transform, 1974. The DCT defines a Fourier-like transform which does not assume periodicity. At the heart Gabriel Peyré on Twitter: "Oldies but goldies: N. Ahmed, T. Natarajan, K. R. Rao, Discrete Cosine Transform, 1974. The DCT defines a Fourier-like transform which does not assume periodicity. At the heart](https://pbs.twimg.com/media/D32N3F4WwAA4JDS.jpg:large)
Gabriel Peyré on Twitter: "Oldies but goldies: N. Ahmed, T. Natarajan, K. R. Rao, Discrete Cosine Transform, 1974. The DCT defines a Fourier-like transform which does not assume periodicity. At the heart
![Gabriel Peyré on Twitter: "Oldies but goldies: Gilbert Strang, The Discrete Cosine Transform, 1999. Reviews the various DCTs in an unifying way as diagonalisation of certain sparse matrices. https://t.co/eDFDVOzyXj https://t.co/zCcWykk5dr" / Twitter Gabriel Peyré on Twitter: "Oldies but goldies: Gilbert Strang, The Discrete Cosine Transform, 1999. Reviews the various DCTs in an unifying way as diagonalisation of certain sparse matrices. https://t.co/eDFDVOzyXj https://t.co/zCcWykk5dr" / Twitter](https://pbs.twimg.com/media/FFoicDuWUAopxUl.jpg:large)
Gabriel Peyré on Twitter: "Oldies but goldies: Gilbert Strang, The Discrete Cosine Transform, 1999. Reviews the various DCTs in an unifying way as diagonalisation of certain sparse matrices. https://t.co/eDFDVOzyXj https://t.co/zCcWykk5dr" / Twitter
Gabriel Peyré on Twitter: "There exists various discrete cosine transforms which correspond to various symmetric boundary conditions. Defines Fourier-like transforms which do not assume periodicity. https://t.co/eDFDVOzyXj https://t.co/bW9q3KvpqR ...
![Modified discrete cosine transform (MDCT) - Introduction to Speech Processing - Aalto University Wiki Modified discrete cosine transform (MDCT) - Introduction to Speech Processing - Aalto University Wiki](https://wiki.aalto.fi/download/attachments/148294912/ola2-1.png?version=1&modificationDate=1552662168647&api=v2)