LumenVox Speech Tuner

LumenVox Speech Tuner

The LumenVox Speech Tuner, a complete tuning and maintenance tool, is a must–have for every speech application and can be used to improve the effectiveness of any LumenVox product.

The Speech Tuner performs transcriptions, instant parameter and grammar tuning, and version upgrade testing of any speech application. It reduces the work of your post–deployment application revisions, and allows you to bring tuning in–house, avoiding costly professional service fees.

The Tuner's Windows GUI interface allows you to review vital accuracy statistics at a glance, making it your primary source of information about your speech applications.

Tuning uses prompts, grammars, call flow, and caller data to improve the speech application performance. Without regular cycles of tuning, most speech applications are destined to suffer from the same problems, leading to unhappy users. Tuning resolves that by allowing administrators the ability to correct mistakes in their application.

The performance of any LumenVox product can be improved with the Tuner's capabilities. If your ASR application is commonly misrecognizing words, the Tuner can help you edit the grammar or test configuration changes. When you need to write new SSML for your TTS solution, the Tuner can check its syntax

Tuning in 3 Easy Steps

Step 1: Import Data

Converters import call log data into the Speech Tuner database. All information stored by the call log is available in the Speech Tuner. Its Call Indexer service automatically scans remote speech applications for fresh logged calls, putting the data you need a click away.

Step 2: Transcribe Speech

Transcribers can type the text of the caller's speech directly into the Transcriber. Once the audio is transcribed, the Speech Tuner compares audio transcripts with the Speech Engine results to determine accuracy, greatly reducing errors associated with manual evaluations. The transcripts are evaluated using the actual decode grammar, producing measurements such as word–error–rate, in– and out–of–grammar rates and semantic error rates.

Step 3: Test Immediately

Selecting an interaction in the Call Log automatically loads the associated audio and grammar into the Tester. The grammar can be edited, Speech Engine parameters set, and individual recognition tests generated. The Speech Tuner natively supports industry standard SRGS grammars. Once a set of possible changes is identified, users can batch test audio to evaluate performance, using those changes.

Whether you are looking to test the configurations of your Speech Recognizer, develop an SSML application for Text–to–Speech or improve the accuracy of a natural language speech application, the Speech Tuner is going to be your most valuable tool.

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