منابع مشابه
Removing the Noise from Chaos Plus Noise
The problem of extracting a “signal” xn generated by a dynamical system from a times series yn = xn + en, where en is an observational error, is considered. It is shown that consistent signal extraction is impossible when the errors are distributed according to a density with unbounded support and the underlying dynamical system admits homoclinic pairs. It is also shown that consistent signal e...
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In harmonic plus noise model (HNM), each segment of speech is modeled as two bands: a lower "harmonic" part represented as amplitudes and phases of the harmonics of a fundamental and an upper noise part using an all-pole filter excited by random white noise, with dynamically varying band boundary. HNM based synthesis can be used for good quality output with relatively small number of parameters...
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In pathologic voices, both slow and fast pitch variations within an utterance are indicative of the patient status. Moreover, the spectrogram of such voices usually shows high noise components, closely related to the degree of perceived hoarseness of the voice. In the present paper, both pitch and noise variations are tracked during an utterance. This is accomplished by means of a two-step proc...
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Let D be a b-wise independent distribution over {0, 1}m. Let E be the “noise” distribution over {0, 1}m where the bits are independent and each bit is 1 with probability η/2. We study which tests f : {0, 1}m → [−1, 1] are ε-fooled by D + E, i.e., |E[f(D+E)]−E[f(U)]| ≤ ε where U is the uniform distribution. We show that D+E ε-fools product tests f : ({0, 1}n)k → [−1, 1] given by the product of k...
متن کاملMusical Sound Modeling With Sinusoids Plus Noise
When generating musical sound on a digital computer, it is important to have a good model whose parameters provide a rich source of meaningful sound transformations. Three basic model types are in prevalent use today for musical sound generation: instrument models, spectrum models, and abstract models. Instrument models attempt to parametrize a sound at its source, such as a violin, clarinet, o...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1974
ISSN: 0001-4966
DOI: 10.1121/1.1919540