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Vocapia Research develops speech processing technologies such as core
multilingual large vocabulary speech recognizers for automatic speech
transcription, for audio indexing, and for speech-text alignment.
VoxSigma™ Software Suite
The Vocapia Research VoxSigma software
suite for Linux offers state of the art performance for broadcast data and
conversational data in many languages. The VoxSigma API includes Unix commands, C and
C++ libraries, import and export in XML format. The VoxSigma software
is available both via licensing and via our web service.
[Voxsigma request form]
Speech Transcription
Substantial advances in speech recognition technology have been
achieved over the last decade. This core technology, available in
multiple languages, serves as the basis for a range of applications
such as voice-interactive database access, as well as more demanding
tasks such as the transcription of broadcast data. Vocapia Research
has speech-to-text systems with
vocabulary sizes up to 300K words for many languages including
Arabic, Dutch,
English, French, Finnish, German,
Greek, Italian,
Mandarin, Polish, Portuguese, Romanian, Russian and
Spanish, and is developing systems for more languages such as
Bulgarian, Czech, Turkish and Ukrainian. Audio Indexing
Large vocabulary continuous speech recognition is a key technology
that can be used to enable content-based information access in audio
and video documents. Most of the linguistic information is encoded in
the audio channel of audiovisual data, which once transcribed can be
accessed using text-based tools. Via language identification, speech
recognition, and speaker recognition, spoken document retrieval can
support random access using specific criteria to relevant portions of
audio documents, reducing the time needed to identify recordings in
large multimedia databases. Some applications are data mining,
news-on-demand, and media monitoring.
Speech-Text Alignment
Speech-Text Alignment is the process of synchronizing a speech signal
with a speech transcript or closely related text, providing time codes
for words and sentences. There are many uses of this technology,
including audio books, language learning, and video subtitling.
Spoken language identification
Spoken language identification is the process recognizing the language
spoken in an audio document (broadcast audio, podcast, telephone). The
standard VoxSigma language identification component can recognize one
of 40 languages.
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