منابع مشابه
Frequency transposition around dead regions simulated with a noiseband vocoder.
In sensorineural hearing loss, damage to inner hair cells or the auditory nerve may result in dead regions in the cochlea, where the information transmission is disrupted. In cochlear implants, similar dead regions might appear if the spiral ganglia do not function. Shannon et al. [J. Assoc. Res. Otolaryngol. 3, 185-199 (2002)] simulated dead regions of varying size and location using a noiseba...
متن کاملPhase-locked Vocoder 1. Phase Vocoder
The phase vocoder is widely used to provide high-delity time stretching or contraction of audio signals such as speech or monophonic musical passages. Two problems bedevil the re-constructive phase of this technique. First, the frequency estimate is usually multi-valued and one does not know how to choose which of the possible frequencies given by the analysis to use in resynthesis. Second, a s...
متن کاملPhase Vocoder Effects
This paper is a progress report of a phase vocoder effects project. First, background information of the phase vocoder is referenced. Second, details of operation are explained. Finally, a timeline for design in presented.
متن کاملThe ModFM Synthesis Vocoder
Vocoders have been practical tools for synthesis and processing since the original voice encoder by Homer Dudley in the 1930s . They enable the transformation and reproduction of an input sound by the manipulation of its spectral envelope. This paper presents a new variation on the principle utilising the technique of Modified FM (ModFM) synthesis for sound generation. The general design of the...
متن کاملThe sliding phase vocoder
The Sliding Discrete Fourier Transform (Sliding DFT) is used as the engine of a phase vocoder, to create a Sliding Phase Vocoder (SPV). With a little care this allows very accurate pitch shifting and low latency, and opens a number of possible extensions. We also consider the use of vector parallel processing to make these techniques a viable option.
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1968
ISSN: 0001-4966
DOI: 10.1121/1.1970728