Audio coding based on integer transforms [Elektronische Ressource] / von Ralf Geiger

Audio Coding Based on Integer TransformsDissertation zur Erlangung des akademischen GradesDoktor-Ingenieur (Dr.-Ing.)vorgelegt der Fakultat¨ fur¨ Elektrotechnik und Informationstechnikder Technischen Universit¨at Ilmenauvon Dipl.-Math. Ralf GeigerGutachter:Univ.-Prof. Dr.-Ing. Karlheinz Brandenburg Dr.-Ing. Walter KellermannDr.-Ing. Jurg¨ en HerreTag der Einreichung: 11. Oktober 2004Tag der Verteidigung: 2. November 2007urn:nbn:de:gbv:ilm1-2007000278AbstractInrecentyearsaudiocodinghasbecomeaverypopularfieldforresearchandapplica-tions. Especially perceptual audio coding schemes, such as MPEG-1 Layer-3 (MP3)and MPEG-2 Advanced Audio Coding (AAC), are widely used for efficient storageand transmission of music signals. Nevertheless, for professional applications, suchas archiving and transmission in studio environments, lossless audio coding schemesare considered more appropriate.Traditionally, the technical approaches used in perceptual and lossless audio cod-ing have been separate worlds. In perceptual audio coding, the use of filter banks,such as the lapped orthogonal transform “Modified Discrete Cosine Transform”(MDCT), has been the approach of choice being used by many state of the artcoding schemes. On the other hand, lossless audio coding schemes mostly employpredictivecodingofwaveformstoremoveredundancy.