Compressing Audio with the Discrete Cosine Transform - Maple Application Center
Application Center Applications Compressing Audio with the Discrete Cosine Transform

Compressing Audio with the Discrete Cosine Transform

Author
: Maplesoft AuthorSamir Khan
Engineering software solutions from Maplesoft
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This application demonstrates how you can compress a signal by discarding low-energy parts of its discrete cosine transform. Specifically, we only retain those coefficients that cumulatively sum to a large part of the signal energy.

Here, the signal is an audio file, where only 13% of the DCT coefficients are needed to represent 97% of the signal energy. After compression, the resulting audio is hissy but still legible.

Application Details

Publish Date: March 19, 2019
Created In: Maple 2019
Language: English

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