| 单词 | threshold howl |
| 释义 | > as lemmasthreshold howl threshold howl n. Electronics (now rare) a whistling noise produced in an amplifier, esp. a regenerative amplifier in a short-wave radio receiver, as a result of excessive feedback occurring close to the limit of sensitivity of the detector. ΚΠ 1928 Cheltenham Chron. & Gloucs. Graphic 11 Aug. 4/3 There are probably many listeners who have at some time or another been troubled with what is commonly called ‘threshold howl’. 1983 B. Happé BKSTS Dict. Audio-visual Terms 33 Digital pitch changer, a device using digital techniques to alter the pitch of the original sound. Used with only a small pitch change to reduce the onset of threshold howl. < as lemmas |
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