What's the difference between surd and unvoiced?

Surd


Definition:

  • (a.) Net having the sense of hearing; deaf.
  • (a.) Unheard.
  • (a.) Involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number.
  • (a.) Uttered, as an element of speech, without tone, or proper vocal sound; voiceless; unintonated; nonvocal; atonic; whispered; aspirated; sharp; hard, as f, p, s, etc.; -- opposed to sonant. See Guide to Pronunciation, //169, 179, 180.
  • (n.) A quantity which can not be expressed by rational numbers; thus, Ã2 is a surd.
  • (n.) A surd element of speech. See Surd, a., 4.

Example Sentences:

Unvoiced


Definition:

Example Sentences:

  • (1) No differences were found in error percentages of voiced and unvoiced phonemes.
  • (2) The findings lend support to the point-of-view that listeners may be able to narrow the choice of the vowel in an unvoiced-stop-consonant CV to a small number of alternatives prior to the beginning of voicing.
  • (3) The vibrators were driven at 250 Hz during voiced segments, and by random noise during unvoiced segments.
  • (4) Immediately following word-learning experiments, subjects were asked to place 16 CVs into five phonemic categories (voiced & unvoiced stops, voiced & unvoiced fricatives, approximants).
  • (5) 3) In "on-off phonation test", ATAXICs showed prolonged unvoiced intervals, while SPASTICs did prolonged voiced intervals.
  • (6) At speech-to-noise ratios between -3 and 6 dB, many hearing-impaired listeners have difficulty in understanding speech, but spectrograms reveal that the formant peaks of voiced speech and some of the spectral peaks associated with unvoiced speech stand out against the background noise.
  • (7) Results showed that 6 of the 8 children generalized both the voiced and unvoiced target sounds to 50% or more of the target sound probe items.
  • (8) The spectral transition is more crucial than unvoiced and buzz bar periods for consonant (syllable) perception, although the latter features are of some perceptual importance.
  • (9) The signals were six broadband noises whose spectral shapes were modeled after the spectra of unvoiced fricative and plosive consonants.
  • (10) The well-known speech production model is considered, where the speech signal is modeled as the output of an all-pole filter driven either by some white noise sequence (unvoiced speech) or by the sum of a periodic excitation and a noise sequence (voiced speech).
  • (11) However, if bandwidth compression is applied to the unvoiced portions of speech only, the above limitations can be overcome (1).
  • (12) The governing equations are derived for a model based on this mechanism, and data on unvoiced trills are used to help set parameters for a numerical simulation of the model.
  • (13) Oscillographic as well as photographic records of the speech acoustic signal were obtained to analyse interval for a syllable, which consisted of voiced and unvoiced intervals, and peak-value of voiced interval.
  • (14) Approximate maximum-likelihood (ML) estimation algorithms for the unvoiced case are well known.
  • (15) In this paper "coarse" acoustic coefficients (autocorrelation, linear prediction, cepstrum, and reflection) were used to form test and reference templates for vowels, voiced fricatives, and unvoiced fricatives.
  • (16) 90, 1828-1840 (1991)] various feature vectors and distance measures were examined to determine their appropriateness for recognizing a speaker's gender from vowels, unvoiced fricatives, and voiced fricatives.
  • (17) Applications of the EGG to speech processing are outlined, including real-time detection of voicing, voiced and unvoiced speech segments, and silence intervals.
  • (18) Two sentence types were voiced throughout, and two contained unvoiced consonants.
  • (19) Results suggested that hypotonic laryngeal muscles in ATAXICs might result in prolongation of unvoiced interval, but that prolonged voiced interval related to biased hypertonus of laryngeal adductor.

Words possibly related to "unvoiced"