Frequency domain variants of velvet noise and their application to speech processing and synthesis: with appendices

18 Jun 2018Hideki KawaharaKen-Ichi SakakibaraMasanori MoriseHideki BannoTomoki TodaToshio Irino

We propose a new excitation source signal for VOCODERs and an all-pass impulse response for post-processing of synthetic sounds and pre-processing of natural sounds for data-augmentation. The proposed signals are variants of velvet noise, which is a sparse discrete signal consisting of a few non-zero (1 or -1) elements and sounds smoother than Gaussian white noise... (read more)

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