> Phonexia Acoustic Keyword Spotting Demo

Phonexia Acoustic Keyword Spotting Demo

This technology will help you to spot the valuable information in huge quantities of speech records. It will help you to save time and money. You need just to specify keywords you would like to find. The technology will allow you to automatically route important recordings or calls to appropriate expert. The keyword spotter also saves keyword occurrences (file and timing) for later analysis.

kws-app screenshot1 kws-app screenshot2

Download our demo application for English, Russian, Hungarian, Slovak or Czech.

Download command line version of the demo application for English, Russian, Hungarian, Slovak or Czech.

>  Use cases for our software:

Security/defense domain

  • Monitoring of telephone services
  • Rising of alarms immediately (on-line) when an event happens
  • Routing of particular recording according to defined keywords

Call centers (commercial, emergency)

  • Storing of calls containing important keywords
  • Call analysis
  • Quality assessment

Web search servers working with speech

  • Searching of spoken documents for given keywords
>  Technology:
  • This technology uses the acoustic approach (keyword is searched using a template) based on artificial neural networks. The advantage of this approach is its speed.
>  Key Features:
Languages available: Russian, Czech (inquire Phonexia for the availability of other languages)
Num. of keywords: Unlimited
Options: Possibility to set detection thresholds and modify pronunciation variants
Speed: Three time faster than real-time (for tens of keywords)
Input: Directory with audio files or list of files
Input Format: WAV or RAW with linear coding (16 or 8 bits), A-law or Mu-law
Output: speech file moved to a particular directory based on found keywords, file of detected keywords, log file of processing information
Sampling frequency: 8000Hz
>  Use:
  • The software can be used through GUI or command-line interface
  • Phonexia offers Software Development Kit for easy and fast integration to your systems.
  • We suggest to download a viewer for analyzing output of the KWS. This KWS viewer is free. The KWS viewer is available at Speech@FIT download section. This tool allows to listen keyword detections and create a reference occurrences to check the correctness of the KWS.
>  New languages:
  • Phonexia offers adaptation of keyword spotting systems to target acoustic channels and application task.
  • Phonexia offers custom development of keyword spotting systems for new languages and target acoustic channels.