Batch Container
Release Notes

Batch Container

High-Level Summary

This release provides internal bug and security fixes. It is recommended that customers on previous releases upgrade to this version.

Important Notices

The legacy V1 API and related output formats is no longer supported. V1 examples have been removed from all batch container documentation and will no longer work. We recommend use of the V2 API and the config.json for all supported features object as documented in the Speech API guide for 8.1.2.

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.

What's New


Internal bug and security fixes

Issues Fixed

The following issues are addressed since the previous release:

Issue IDSummaryResolution Description
REQ-18031Speaker Diarization ImprovementsSpeaker Diarization has been improved where there are two speakers in a file

Known Limitations

Issue IDSummaryDetailed Description and Possible Workarounds
REQ-1409Proteus HCL with <unk> causes out of memory errorA custom dictionary list that contains the word '' causes the worker to crash.
REQ-10160Advanced punctuation for Spanish (es) does not contain inverted marks.Inverted marks [ ¿ ¡ ] are not currently available for Spanish advanced punctuation.
REQ-10627Double full stops when acronym is at the end of the sentenceIf there is an acronym at the end of the sentence, then a double full stop will be output, for example: "team G.B.."
REQ-10634Putting "-" as an item in additional vocab configuration will cause the container to failDo 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

Supported Platforms

Docker (17.06.0+) running on Ubuntu, Debian, Fedora or CentOS.


Pull the Batch Container Docker image from the Speechmatics Docker repository.


You have a login (URL, username and password) for the Speechmatics Docker repository, and have a Docker environment (version 17.06.0 or above) running.

Related Documentation

  • Speechmatics Batch Container Quick Start Guide version 8.1.2
  • Speechmatics Batch Container API Guide version 8.1.2

Supported Languages

Below is the complete list of languages supported by Speechmatics:

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

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


For example,