TIMIT
From SpeechWiki
Phonetic Oddballs in TIMIT
Here are some stop releases in TIMIT that illustrate unusual behavior.
Format: sentence -- time -- apparent articulatory events
- Transient and Frication
- Multiple Bursts
- fsdc0/sx52 - 2010 - four bursts.
- mwem0/sx240 - 2757 - five bursts.
- Gradual Fricated Releases
- ...too numerous to mention...
- mmdb0/sx87 - 327 - gradual frication onset, with a strong peak 15ms after frication onset.
- Pre-Frication, then a Transient
- mesj0/si997 -- 2978 -- /b/ae/
- fsdc0/si2234 -- 869 -- strident frication.
- fpmy0/si1153 -- 3334. ftaj0/sx69 -- 1877.
- mrld0/sx424 -- 2032. mrws1/si1130 -- 1542.
- mrxb0/sx55 -- 1713 -- early burst, frication, second burst.
- fjsa0/si749 -- 4996 -- voice offset before closure, frication burst at closure.
- Stop Implemented as a Fricative
- mjrb1/sx300 -- 4198 -- /k/ in /s/k/uw/ implemented as a strident velar fricative.
- Glide Implemented as a Fricative
- mrab0/sx54 -- /p/, then rounded fricated /y/, then /y/.
- Multiple Bursts
- Voice Source
- Diplophonia
- mrwa0/sx253 -- /g/er/. mdlm0/si1234 --/b/ax/.
- Filled Pauses
- mmds0/sx83 -- /d/ released into a high-pitched "squeak" pause (with /ah/ quality of following vowel).
- fpjf0/si1259 -- 2321 -- /p/ released into a high-pitched boundary marker.
- mmea0/si758 -- 2202 -- "filled pause" (one glottal pulse) inserted in the middle of frication for a /k/.
- Drop Shut" Voice Onset
- mjwt0/sx31 -- 319.
- mkrg0/sx31 -- 276.
- fmpg0/sx342 -- 3633.
- mmag0/si496 -- 277 -- clearly a glottal pulse, but sounds like a /g/ burst.
- mjdm0/sx350 -- 3879.
- Other voicing or pulses during aspiration
- mpab0/sx318 -- 1012 -- /p/ih/ -- glottis closes and opens, then vibrates slowly for 17ms until the next closure.
- freh0/sx55 -- 1573 -- voicing, about 15ms.
- mfrm0/sx435 -- 2418 -- strong glottal closure, with F1 ringing, 14ms before next closure.
- mgjc0/sx435 -- /t/eh/ -- strong peak, looks like a second burst, but sounds like aspiration.
- fsjg0/sx40 -- 432 -- big peaks 15ms after burst, sound like aspiration.
- Oral cavity changes voicing
- mkrd0/si1903 -- 1580 -- tongue release changes the voicing waveform (impulsive closure) 4ms before the "burst."
- Diplophonia
- Place of Articulation Effects
- Double Articulation
- mwew0/si1361 -- 0.15 -- /b/ax/ -- implemented as a labialized glottal stop.
- mrgm0/si1162 -- 1363 -- /b/ux/ -- doubly articulated labial/dental.
- mslb0/sx203 -- 1344 -- doubly articulated labial/alveolar, bursts 9.3ms apart.
- Reduction of /t/
- mrso0/si1206 -- 1185 -- /t/ in "stood" becomes /th/; sounds like /k/ if you play it alone, but sounds like /th/ if you add the /s/ or the /uh/.
- mjrb1/sx300 -- 2196 -- second /t/ in "constantly" implemented as a lateral velar release.
- Reduction of /d/
- flag0/si2094 -- 936 -- to /dh/ after /l/.
- mnls0/si1610 -- 1360 -- to /dh/ after glottalized /l/.
- mjrh1/sx64 -- 1632 -- ejective release followed by vowel onset reduced to /dh/.
- ftrb0/sx291 -- /er/d/ah/ ejective release reduced to /dh/.
- fpmy0/sx73 -- 666 -- to /dh/ because of a lisp.
- mljh0/sx64 -- 1988 -- after /l/, reduced to /n/ with click at release.
- fsrh0/sx221 -- /d/ax/ implemented as a syllabic /z/.
- mjmm0/sx85 -- 1128 -- word-final /d/ implemented with full closure, but with no pressure buildup.
- mdrd0/sx392 -- 2295 -- word-final /d/ released silently, next syllable starts with glottal stop.
- Double Articulation
- Non-Stop Things
- maeo0/sx336 -- 1770 -- syllabic /f/.
- fpas0/si2204 -- This sentence sounds like it was made with as little VT closure as possible.
- mdks0/si1696 -- /th/w/ -- auditory illusion, sounds like /p/uh/ unless the whole syllable is played.