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Time Stretching of Musical Instrument Tones

This paper will present an approach to time stretching monophonic sounds such as musical instrument and voice samples. While most time stretching algorithms preserve the pitch of signals, typically they distort some aspects of the temporal evolution-such as onset time, vibrato rate, and random variations in amplitude and frequency. The aim of the time stretching algorithm presented in this paper is to preserve such features of the original signal in the transformed signal.

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AES - Audio Engineering Society