Real-time Container

Important Notices

It is now necessary to use processors that support Advanced Vector Extensions 2 (AVX2) when running the container in order to take advantage of latest performance optimisations.

It is also recommended when using the enhanced model to use hardware that supports the AVX512_VNNI flag for optimal processing performance. For more information please see the quick start guide.

2.1.0

New

• New English finance domain language pack. Provides accuracy improvements when specific financial jargon is spoken in your audio. Refer to documentation here for more details
• New language Ukrainian (uk)
• 16 Languages updated with additional punctuation marks for improved readability
  • The following languages now support (. ? , !): Bulgarian, Catalan, Czech, Greek, Finnish, Croatian, Hungarian, Lithuanian, Latvian, Norwegian, Polish, Romanian, Slovak, Slovenian, Ukrainian, Korean

Improved

• Improved accuracy for French, including more data for Canadian French (fr-ca)
• Improved accuracy for Portuguese, including more data for Brazilian Portuguese (pt-br)
• Improved accuracy in standard operating point for Romanian, Hungarian, Danish, Slovakian, Croatian, Bulgarian, Finnish, Slovenian, Lithuanian
• Updated Danish, Norwegian and Swedish to remove undesired character sets
• Improved accuracy in localised spelling for English output locale feature
• Improved accuracy of percentage symbol recognition in French

Fixed

• Fixes for English and Italian written form numeric entities
• Fix for handling the issue where occasional end times of words could be before the start time

Known Limitations

The following are known issues in this release:

Issue ID	Summary	Detailed Description and Possible Workarounds
REQ-10634	Putting "-" as an item in additional vocab configuration will cause the container to fail	Do not enter just a "-" on its own in Custom Dictionary either as an additional vocab item or in the sounds_like property. Hyphens are still supported when entered as part of phrases or words
REQ-13240	Chinese (cmn) container crashes occasionally when using certain additional vocabulary	Do not use whitespace characters in additional vocabulary sounds_like
REQ-16256	Audio Swapping between 8kHz and 16kHz causes memory leak	Repeatedly audio swapping between 8kHz and 16kHz files can cause an increase in memory over very long periods that causes the container to crash. If memory usage in this scenario becomes excessive it is recommended to restart the container

Supported Platforms

Docker 17.06.0+

Installation

Pull the container image from the Speechmatics Docker registry

Prerequisites

• Docker (17.06.0 or above)
• Login credentials (URL, username and password) for the Speechmatics Docker registry

Supported Languages

These are the General Availability (GA) release notes for the Real-time ASR container images. Following languages are supported:

Language	ISO Code
Arabic	ar
Bulgarian	bg
Catalan	ca
Mandarin	cmn
Czech	cs
Danish	da
German	de
Greek	el
Global English	en
Global Spanish	es
Finnish	fi
French	fr
Hindi	hi
Croatian	hr
Hungarian	hu
Indonesian	id
Italian	it
Japanese	ja
Korean	ko
Lithuanian	lt
Latvian	lv
Malay	ms
Dutch	nl
Norwegian	no
Polish	pl
Portuguese	pt
Romanian	ro
Russian	ru
Slovakian	sk
Slovenian	sl
Swedish	sv
Turkish	tr
Ukrainian	uk
Cantonese	yue

Container images are labelled using the following scheme, where language codes adhere the ISO-639 standard:

rt-asr-transcriber-<language>:<version>

For example,

rt-asr-transcriber-en:2.1.0