Cover song identification with direct chroma feature extraction from AAC files. - Tai-Ming Chang; En-Ting Chen; Chia-Bin Hsieh; Pao-Chi Chang (GCCE, 2013)

An enhanced direct chord transformation for music retrieval in the AAC transform domain with window switching. - Tai-Ming Chang; Chia-Bin Hsieh; Pao-Chi Chang (Multim. Tools Appl., 2015)