What's the difference between amplitude and loudness?

Amplitude


Definition:

  • (n.) State of being ample; extent of surface or space; largeness of dimensions; size.
  • (n.) Largeness, in a figurative sense; breadth; abundance; fullness.
  • (n.) Of extent of capacity or intellectual powers.
  • (n.) Of extent of means or resources.
  • (n.) The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.
  • (n.) The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.
  • (n.) The horizontal line which measures the distance to which a projectile is thrown; the range.
  • (n.) The extent of a movement measured from the starting point or position of equilibrium; -- applied especially to vibratory movements.
  • (n.) An angle upon which the value of some function depends; -- a term used more especially in connection with elliptic functions.

Example Sentences:

  • (1) After midazolam infusion, there was a 50% decrease in amplitude of P3 in response to target tones (P less than 0.006), whereas N3 latency increased by 40 ms (P less than 0.05).
  • (2) A significant correlation was found between the amplitude ratio of the R2 and the sensitivity ratio of the rapid off-response at short and long wavelengths.
  • (3) Intact rams exhibited GH secretory episodes of greater (P less than 0.01) amplitude than did castrated lambs.
  • (4) The maximum amplitude of the inward Na+ current, normalized by cell capacitance, is about sixfold larger, on the average, in LP lactotropes than in SP lactotropes.
  • (5) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
  • (6) The amplitudes of the a-wave and the 01 decreased in dose-dependent manners, but their changes were less striking than those of the 01 latency.
  • (7) We have now started a prospective follow-up study in order to pursue the development of (a) p-ERG amplitudes and (b) funduscopic changes and visual acuity in these patients.
  • (8) Noradrenaline decreased the phasic contraction amplitude of the circular muscle and exerted a stimulant effect on the tone which suggested an existence of two alpha 1-adrenoceptor subtypes.
  • (9) elution patterns of the adducts formed by DBF metabolites with DNA and obtained in vivo at the optimal exposure time of 42-48 h were qualitatively very similar to the patterns obtained in vitro, but their amplitude was quantitatively reduced.
  • (10) In contrast, the average reduction in mean EEG amplitude with isoflurane was only 0.3% and there were neither periods of suppression nor any correlation between EEG amplitude and MAP.
  • (11) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.
  • (12) The ophthalmic headache's crisis is caused, in fact, by a spasm of convergence on an unknown exophory of which the amplitude of fusion is satisfying, and the presence of which can only be seen with test under screen.
  • (13) Moreover, the most recent combined application of the rat interstitial cell testosterone (RICT) bioassay and a novel multiple-parameter deonvolution model has allowed investigators to dissect plasma concentration profiles of bioactive LH into defined secretory bursts, which have numerically explicit amplitudes, locations in time, and durations, and are acted upon by determinable subject- and study-specific endogenous metabolic clearance rates.
  • (14) By this action, oxytocin is believed to increase the probability of successful regenerative spikes and thereby initiate electrical activity in quiescent preparations, increase the frequency of burst discharges, the number of spikes in each burst, and the amplitude of spikes in individual cells.
  • (15) Replication dependent on the SV40 origin and having the kinetics and approximate amplitude of an SV40 infection ensued.
  • (16) For the case of the fluctuating pressure, the strength of the artery becomes considerably lower than those under constant amplitude and two-step-multi-duplicated pulsatile pressure.
  • (17) Complex tones containing the first 20 harmonics of 50, 100, or 200 Hz, all at equal amplitude, were used.
  • (18) In the placebo group of 14 patients CNV-amplitudes even decreased after ten Infusions with multi-vitamins alone.
  • (19) ERGs of high amplitude and of normal wave form were recordable with prominent oscillatory potentials.
  • (20) increase in amplitude in both, hippocampus and neocortex was observed with MK 801 and ketamine and these agents also showed longer lasting influence.

Loudness


Definition:

  • (n.) The quality or state of being loud.

Example Sentences:

  • (1) External phonocardiography performed at the time of cardiac catheterization revealed that this loud midsystolic click disappeared whenever a catheter was positioned across the mitral valve.
  • (2) One-nation prime ministers like Cameron found the libertarians useful for voting against taxation; inconvenient when they got too loud about heavy-handed government.
  • (3) This was followed by loud applause for Gündogan and De Bruyne, when each was later taken off.
  • (4) "I was eight in 1983, but I remember a plane that flew low over our Bulawayo suburb and army loud-hailers screaming: 'You are surrounded.'
  • (5) Clinical measurements of the loudness discomfort level (LDL) are generally performed while the subject listens to a particular stimulus presented from an audiometer through headphones (AUD-HP).
  • (6) From a set of tones that varied only in intensity, it was possible to calculate the growth of loudness with intensity for the budgerigar.
  • (7) The footballer said the noise of the engine was too loud to hear if Cameron snored but his night "wasn't the best".
  • (8) To produce intramodal arousal, normal subjects also had EEG recordings made during the random sounding of a loud bell.
  • (9) The vocalight lights up a variable number of light-emitting diodes depending upon the loudness of sounds received at a hydrophone within the suction cup.
  • (10) At one point, shortly after Suárez had given them a 3-0 lead, a loud cry had gone up from the Liverpool end of "We're going to win the league".
  • (11) Oestrous and dioestrous rats were observed during the initial 2 min of open-field exposure, and after a loud bell had sounded.
  • (12) We are not doing it as loudly, we're not embracing it quite as much, but the fact of the matter is we do need a much more stimulative fiscal policy."
  • (13) And a woman in front of me said: “They are calling for Fox.” I didn’t know which booth to go to, then suddenly there was a man in front of me, heaving with weaponry, standing with his legs apart yelling: “No, not there, here!” I apologised politely and said I’d been buried in my book and he said: “What do you expect me to do, stand here while you finish it?” – very loudly and with shocking insolence.
  • (14) Voice control, a punishment technique based on loud commands, has been used widely in pediatric dentistry.
  • (15) Witnesses reported hearing a loud bang coming from the area, which is also close to the Belfast city centre's prime retail centre and the city's courts, hours after a security alert was declared after 9pm.
  • (16) In this experiment, observers were asked to match the loudness of partially masked test-tone bursts in one ear by adjusting the level of unmasked bursts presented to the other ear.
  • (17) But the evidence from the nation at large is loud and clear.
  • (18) A loudness meter that combines the spectral shapes of different sounds to produce an overall perceived magnitude offers greater promise.
  • (19) More important, however, context simultaneously affected the degree of loudness integration as measured in terms of matching stimulus levels.
  • (20) He's been speaking loudly, then realising the other customers had begun to listen in to what he was saying, he lowers it again, before continuing: – There were military planes flying low over the forest.

Words possibly related to "loudness"