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Keyword Spotting (KWS)

…more keywords and optional threshold value and/or pronunciation variants of the keyword. The number of keywords and pronunciations is not limited. – to clarify this statement: The performance drop affects only processing using keyword lists without explicitly defined pronunciations. In such cases, the technology must create pronunciations internally in the background before starting the processing (see Pronunciations section below), which…

Understand SPE directory structure

Good understanding of SPE directory structure helps to better understand the inner workings of SPE and simplifies troubleshooting. It’s also useful for expert-level tuning of parameters of individual technologies and optimizing SPE configuration e.g. for deployments with shared resources, or deployments in virtualized environments, etc. The SPE directory structure looks like this (the tree depth is limited for better readability):…

Speaker Identification (SID)

…technical capabilities of text-independent speaker recognition. The objective is to drive the technology forward and through the competing find the most promising algorithmic approaches for our future production-grade technology. Basic use cases and application areas The technology can be used for various speaker recognition tasks. One basic distinction is based on the kind of question we want to answer. Speaker…

FAQs (PSP)

…– abbreviation for log-likelihood ratio statistic, logarithmic function of LR. LLR meets numbers in interval (-inf;+inf). Percentage (normalised) score – commonly used mathematical transformation of the LLR to percentage. This number is better for human readability but may bring some doubts if LLR numbers are too high (typically for some non-adapted installations). Interval <0;100> (or sometimes <0;1>), in %. The…

FAQs (Browser)

…are under one model than the other. LR meets numbers in interval <0;+inf). LLR – abbreviation for log-likelihood ratio statistic, logarithmic function of LR. LLR meets numbers in interval (-inf;+inf). Percentage (normalised) score – commonly used mathematical transformation of the LLR to percentage. This number is better for human readability but may bring some doubts if LLR numbers are too…

Sizing of the computing units for speech technologies

…VT features can’t help in performance) Also seek for CPUs with a large L3 cache. And the better CPUs are those with higher l3_cache_size/#_of_physical_CPU_cores ratio. We currently assume that CPUs from the current Intel Xeon Family in the 4th generation are the best. For small computation tasks, i7 family CPUs also have reasonable price/performance ratio) Big challenge: correct SPE3/Speech platform…

Understand SPE processing priority

…they get processed as soon as possible, without waiting in the queue. Similarly, if one has a bunch of “not so important” files for processing, these can be sent for processing using lower priority… and they will get processed only later, after the higher-priority tasks in the queue get processed. To use task prioritization, you need to have task priorities…

Q: What do LLR, LR and score mean?

A: These abbreviations mean the following: LR – likelihood ratio, result from statistical test for two models comparison. It returns a number which expresses how many times more likely the data are under one model than the other. LR meets numbers in interval <0;+inf). LLR – abbreviation for log-likelihood ratio statistic, logarithmic function of LR. LLR meets numbers in interval…

Licensing (technical details)

…by default. It describes all conditions and parameters that maintain the validity of the license itself, like product or technology name, unique license ID, license expiration, number of instances covered for each technology separately, etc. License file example: # Phonexia license file # generated 2017-08-10 20:18:49 UTC SERVER license.phonexia.com/lic USE_SERVER PRODUCT SPE_v3 D8091C4EA03C6A78455772A77BACC6FE 4521BD22 ED14A573 [email protected] # crc:121 slots:4 until:2017-12-10…

Speech to Text (STT)

…symbols which will never be output from speech transcription system. Numbers: transcription always include „thirteen“ instead of „13“, which can occur in the annotation Parentheses; transcription – „parentheses“, annotation „( )“ Characters of national alphabets; transcription – only limited alphabet, annotation „ěščřžů,…“ Data in annotation needs to be processed to include only characters allowed in transcription to avoid quality impact….

Understand SPE database scripts

…└── update └── MySQL – obsolete ├── v1800 └── update Scripts for SQLite are used automatically by SPE, i.e. users using SPE with default SQLite database don’t really need to worry about it. This is because SPE has complete control over the SQLite database and therefore can perform all needed operations without any limitation. Scripts for MariaDB and MySQL are…

Understand SPE user accounts

…name and password (obviously 😉) whether the account is active or not – accounts may be turned off and on user role – any combination of user – allowed to use all SPE functionality, except for the /admin/… endpoints admin – allowed to use all SPE functionality, including the /admin/… endpoints prioritize – allowed to prioritize SPE tasks, see Task…

Key Features (PSP)

…the Speech Engine) with a graphical user interface for advanced evaluation. The Reporting and Licensing Server (RLS) component is dedicated to limiting the capacities as purchased by a customer (if it is an on-premises deployment without access to the internet) or gathering and calculating the pay-as-you-go amount (if it is a deployment with access to the internet). Speech Technologies Available…

Speech Engine update

Phonexia packages versioning follows the bugfix / update / upgrade approach. Bugfix changes only last version number (e.g. 3.45.x to x+1) and includes a fix of known problems, without changing components or technology models Update changes middle version number (e.g. 3.x.y to x+1) and changes/enhances the functionality and may change the API can include bugfixes, or changes in component or…