Hit

Occurrence of Keyword in recording, identified by technology with a given threshold.

Miss

Occurrence of Keyword in recording, not identified by technology with a given threshold.

False alarm

Occurrence of the word identified by technology as found Keyword, in a place that the Keyword was not actually said in the recording.

Hypotheses

List of found words on KWS output identified by technology as the variant for detection.

Threshold

Number defining how much the score of the found word must be to appear among detections.

Keyword pronunciation

Pronunciation of the keyword(s) is generated automatically (G2P, grapheme to phoneme)  or produced from the lexicon of known words (“lexicon”) or converted from audio (phoneme transcription). It can be edited manually for each word (Phonexia do not limit the number of pronunciations per keywords/phrases).

Keyword list

Set of keywords or phrases defined together with keyword pronunciations (Phonexia do not limit the number of keyword lists).

Keyword

Word or a phrase that is searched by a user (defined by a user as an input for KWS technology). Phonexia does not limit the number of keywords in the keyword list. The higher number of keywords (500+) cause speed decrease.

Browser

Phonexia Browser is a powerful GUI tool for the Phonexia Speech Platform. It is designed for processing speech archives over Phonexia SPE.

WER

Word Error Rate – metrics for STT/LVCSR accuracy measurement

VP

Voice Print – output from spoken speech extraction process of SID. Unique mathematical representation of the specific speaker or recording is created in form of the iVector (for SID generation 3) or xVector (Deep Embeddings for SID generation 4).

VoIP

Voice over Internet Protocol – delivery of voice communications and multimedia sessions over Internet Protocol

VIN

Voice Inspector – Phonexia GUI application for forensic analysis

VATOOL

Voice Analytics Tool – predecessor of Phonexia Browser

VAD

Phonexia Voice Activity Detection

TANALYSIS

Command line version of time analysis extraction (TAE)

TAE

Time Analysis Extraction

STT

Phonexia Speech To Text, sometime also as Speech Transcription Technology (LVCSR based ASR technology)

SQE

Phonexia Speech Quality Estimator

SNR

SNR – signal-to-noise ratio

SPE

Phonexia Speech Engine (RESTfull API)

SIR

Speech Intelligence Resolver – predecessor of Phonexia Browser

SID

Phonexia Speaker Identification, multiple generations available marked by version like SIDv2 or SIDv3

SDK

Software Development Kit

SAL

Phonexia Speech Analytics (formerly named SPAS)

REST

REpresentational State Transfer (sometime also RESTful) application programming interface

PoC

Proof of the Concept

PHR

Phoneme recognizer – currently part of Keyword Spotting (Phonexia Keyword Spotting – acoustics based ASR, several tec…) technology in Phonexia Speech Engine  (REST Application Program Interface)

Ph

Phoneme – The smallest phonetic unit in a language that is capable of conveying a distinction in meaning, as the m of mat and the b of bat in English.

OEM

Original Equipment Manufacturer