Mtrans: A Multi-Channel, Multi-Tier Speech Annotation Tool

MTRANS, a freely available tool for annotating multi-channel speech is presented. This software tool is designed to provide visual and aural display flexibility required for transcribing multi-party conversations; in particular, it eases the analysis of speech overlaps by overlaying waveforms and spectrograms (with controllable transparency), and the mapping from media channels to annotation tiers by allowing arbitrary associations between them. MTRANS supports interoperability with other tools via the Open Sound Control protocol.

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