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Speech Transcription Server

Overview

GL’s Speech Transcription Server is a PC-based automated speech-to-text conversion application. Among numerous applications, the Speech Transcription Server can be used for confirming voice prompts (announcements) and aid intesting Interactive Voice Response (IVR) systems as well as voice transportation over any network. Network providers use the application to record the voice prompts associated with the IVR, perform a Speech to Text conversion on the recording to confirm the prompt was proper (based on what the prompt should be), and thus confirming their IVR functioning. The application can be used to verify network quality as well as effect of different codecs on the speech quality.

 
pdf Speech Transcription Server Brochure

This application works with GL’s File Conversion Utility which supports various industry standard codecs. This application can be good companion for GL’s MAPS™, and VQuad™ applications that allow transmission and recording of voice to/from audio files over many industry standards telecommunication network interfaces like FXO/FXS/ 4-Wire/ISDN/SS7/GSM/UMTS/VoLTE etc.

The Speech-to-Text application can also supplement GL’s Voice Quality Testing solution providing a more passive method to verify good quality audio. Using the VQT intrusive method for Voice Quality, the customer needs to send a pre-defined voice sample from near to far-side, record at the far-side and analyze based on the file sent from near-side. This is a very accurate method for generating a Voice Quality measurement but requires equipment at both ends of the call. Alternatively, if access to both sides of the call is not available, the Speech-to-Text method can simply record a pre-specified sentence at the far-end and provide a Certainty score of the recorded Text based on what was expected. The Speech to Text conversion can confirm if the received audio, for instance a customer speaking into their phone, matches what was expected which would confirm there was relatively good audio on the network.

Main Features

  • Transcribe up-to 20 seconds of speech files into text
  • Transcribe recorded short speech files into text; there is a maximum limit of 20 seconds for any single utterance.
  • Cloud-based processing provides accurate translations; requires internet connectivity for cloud based processing (HTTPs port 443 used)
  • Support U.S English; Multi-language support coming soon.
  • Easy to access transcribed text via file, API or database
  • Base software includes 100,000 files transcriptions per year, validity can be extended with annual support contract.

Working Principle

The Speech Transcription Server can convert recorded audio (*.PCM or *.WAV) files into text format. Single or Multiple folders are monitored continuously for short audio files and once the files are detected, they are placed in the speech transcription queue for transcription. These files are sent to the cloud-based transcription service and are accurately converted to text.

Transcription Results

Results are listed in the order they are transcribed and includes source file information (such as File Name, Directory path, Length of the file, Modified Date and Time) along with the transcribed file information such as Transcribed Date and Time, Transcription output text, Certainty score, and the Time taken in seconds to transcribe the file. The certainty ranges from 0-1 where 0 indicating the lowest confidence score and 1 indicating the highest confidence score for the transcribed text. Anything above or equal to 0.8 is considered as good confidence score.

Database

Transcription results obtained can be automatically sent to local database such as MySQL. The MySQL command window updates the stored results information as and when the new entries are updated to the database.


Buyer's Guide

Item No. Item Description

VQT009

Speech-to-Text Conversion

 Related Software
VQT002

Voice Quality Testing (PESQ only)

VQT010

VQuad™ Software (Stand Alone)

VQT013

VQuad™ with SIP (VoIP) Call Control

VQT252 Dual UTA HD – Bluetooth Option
VQT461 Dual UTA HD Smartphone ACC Cable

PKS118

MAPS™ ED137 Radio (Includes PKS107, & PKS102)

PKS119

MAPS™ ED137 Telephone (Includes PKS102)

PKS102

RTP Soft Core for RTP Traffic Generation

PKS120 

MAPS™ SIP

PKS121

MAPS™ SIP Conformance Test Suite (Test Scripts)

PKS108

RTP Voice Quality Measurements

PKS106

RTP Video Traffic Generation

* Specifications are subject to change without notice.

 
 
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