(1) An off-axis Fresnel zone plate, through use of a halftone screen to introduce a spatial carrier frequency, can be used as a large-area, coded aperture for imaging incoherent radiation sources.
(2) The development steps are described from the early ultrasound registrations to the true halftone printing of digital images today.
(3) A 512 X 512 X 8 bit matrix is judged to be satisfactory for analyzing images mathematically and producing illustrations of bones, but higher quality tools are required to store anatomical figures with halftones in a good condition, and to prepare fine anatomical illustrations.
(4) Ratings for quarter tones interpolated halfway between the halftone steps of the standard chromatic scale were approximately the averages of ratings for adjacent chromatic tones, suggesting failure to discriminate tones at this fine level of division.
Semitone
Definition:
(n.) Half a tone; -- the name commonly applied to the smaller intervals of the diatonic scale.
Example Sentences:
(1) In Experiment 1, children from 4 to 6 years of age were superior in detecting the semitone change in the diatonic context compared with the nondiatonic context.
(2) Model recognition performance shows a rapid improvement in correct vowel identification as the difference between the fundamental frequencies of two simultaneous vowels increases from zero to one semitone in a manner closely resembling human performance.
(3) The 6-month-olds' better performance on the major and augmented interval patterns than on the pelog interval pattern is potentially attributable to either the 6-month-olds' lesser perceptual acculturation than that of the 1-year-olds or perhaps to an innate predisposition for processing of music based on a single fundamental interval, in this case the semitone.
(4) A significant sex effect, not observed in a prior related study, was eliminated by conversion of the Fo data to semitones.
(5) The results of this study indicate that SFF standard deviation and semitone range of SFF are significantly reduced for patients with vocal fold paralysis as compared with normals.
(6) In Experiment 2, infants 9 to 11 months of age detected the semitone change in all positions, but their performance was not influenced by diatonic context.
(7) Another pattern that consists of simultaneous pairs of tones displays related properties (the semitone paradox).
(8) The tones were either identical in pitch or differed by a semitone.
(9) Comparison of male and female profiles showed similar values for frequency range in semitones, maximum and minimum SPL output, and total SPL range.
(10) Pitch threshold or, alternatively, rate threshold was taken to be the modulation depth required to decide which of two samples had the higher modulation; the rate difference was 20%--just over three semitones.
(11) Previously given preferred notes were rated high, as were notes three or four semitones distant from the preferred notes, but not notes one or two semitones distant.
(12) As this difference increases up to four semitones, performance improves further only slowly, if at all.
(13) He then started to hear all music one semitone too high, and now at the age of 71 it is heard a full tone above the true pitch.
(14) They were tested for their detection of two types of changes to that melody: (a) a 4-semitone change in 1 note that remained within the key and implied dominant harmony (diatonic change) or (b) a 1-semitone change in the same note that went outside the key (nondiatonic change).
(15) In three experiments, musically trained and untrained adults listened to three repetitions of a 5-note melodic sequence followed by a final melody with either the same tune as those preceding it or differing in one position by one semitone.
(16) Within the framework of the experimental conditions, the following conclusions were drawn: 1) The vocal pitch expressed in semitones was almost linearly related to the cricothyroid distance, with an increase of 0.15 to 0.90 semitones per milimeter of cricothyroid approximation.
(17) Frequency difference limens of these signals are in the order of 1-2 semitones.
(18) Specifically, one such waveform, when recorded on magnetic tape, will sound a semitone lower (rather than an octave higher) when played back at twice the tape speed.
(19) The form of the probability weightings derives from constraints on the "semitone span" of the intervals, the "fifth span" of the intervals, and the occurrence of "scale" notes.
(20) Variability in basal pitch levels for individual male children ranged from zero to two semitones from day to day and within time periods on one day.