CSLU: Voices

Item Name: CSLU: Voices
Author(s): Alexander Kain
LDC Catalog No.: LDC2006S01
ISBN: 1-58563-363-1
ISLRN: 960-768-408-027-3
DOI: https://doi.org/10.35111/7vr2-b249
Release Date: January 19, 2006
Member Year(s): 2006
DCMI Type(s): Sound, Text
Sample Type: pcm
Sample Rate: 22050
Data Source(s): microphone speech
Application(s): speaker identification, speaker verification, speech recognition, speech synthesis
Language(s): English
Language ID(s): eng
License(s): CSLU Agreement
Online Documentation: LDC2006S01 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Kain, Alexander. CSLU: Voices LDC2006S01. Web Download. Philadelphia: Linguistic Data Consortium, 2006.


CSLU: Voices was developed by Alexander Kain and consists of approximately two hours of read speech in English and includes associated transcripts, laryngograph signals, pitch marks, and phonetic labels. The corpus was created for Kain's Ph.D. dissertation work on high resolution voice transformation (VT) and contains 12 speakers reading 50 phonetically rich sentences.

VT is a technology that modifies a source speaker's speech utterance to sound as if a target speaker had spoken it. The purpose of this corpus is to aid VT research and development by providing naturally time-aligned sentences. Consequently, removal of individual prosodic characteristcs, such as fundamental pitch and durations, requires only very little processing and results in high-quality speech samples that only differ in their segmental properties, which is the focus of transformation. These "prosody-normalized" speech samples are used for training VT systems, as well as for evaluating their transformation performance objectively and subjectively.


The recording procedure involved a "mimicking" approach which resulted in a high degree of natural time-alignment between different speakers. The acoustic wave and the concurrent laryngograph signal were recorded for one "free" and two "mimicked" renditions of each sentence. Laryngograph signals, pitch marks calculated from the laryngograph, and time marks from a forced-alignment algorithm, have been added to the corpus.

The corpus includes seven male speakers and five female speakers.


For an example of the data contained in this publication, please review the following samples.


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