CHILDES English kidLUCID Corpus

Valerie Hazan SHaPS - emeritus UCL v.hazan@ucl.ac.uk

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Citation information

• Baker, R., & Hazan, V (2011). DiapixUK: a task for the elicitation of spontaneous speech dialogs. Behavior Research Methods, 43(3), 761-770.
• Hazan, V. L., & Baker, R. (2011). Acoustic-phonetic characteristics of speech produced with communicative intent to counter adverse listening conditions. Journal of the Acoustical Society of America, 130(4), 2139-2152.

In accordance with TalkBank rules, any use of data from this corpus must be accompanied by at least one of the above references.

Project Description

A complete description of the project is in this pdf

Picture stimuli as in this .zip file.

Praat textGrids are in this .zip file.

Acronym: LUCID = London UCL Clear Speech in Interaction Database. Project title: Speaker-controlled Variability in Children's Speech in Interaction (A research project funded by the ESRC)

• >96 talkers (all native southern British English speakers, 46 male, 50 female). Recorded in pairs.
• A total of 288 conversations distributed across three conditions as follows:
  • NOB (No barrier): 96 conversations while they both heard each other normally.
  • BAB (Babble): 96 conversations where one conversational partner heard the other's speech in a background for multi-talker babble at an approximate SNR of 0 dB. The talker hearing the babble was a confederate. Exceptions: 4 conversations with CBB ('child multitalker babble' as opposed to 'adult multitalker babble')
  • VOC (Vocoded): 96 conversations where one conversational partner heard the other's speech after it had been processed in real time through a noise-excited three channel vocoder
• Each condition contains 1xTextgrid and 1x sound file that both contain the two speakers. SpA (i.e., Speaker A) is the leader (always on the right audio channel and bottom two Tiers in TextGrid files) whose speech has been impaired (i.e., the one who has to clarify their speech). SpA is coded in the filenames as follows: for example, F01F02BAB1S2.wav, that is, F01 is the one on the left audio channel (SpB) and F02 the one on the right audio channel (SpA).
• >(NB! The transcribed data [textgrids] has been automatically aligned with the audio. Right channel data has been manually checked for word level alignment and vowel alignment but note that this is for three vowels only (iy/ao/ae) whereas the left channel alignment has not been checked.)
• File naming has this info: F/M female/male; 01/02 speaker order; S = Street, F = Farm scene , B = Beach scene; BAB/NOB/VOC