Media Server 25.3
Media Server Help

# Speech-To-Text

Speech-To-Text transcribes words spoken in audio into text.

TIP: To use speech-to-text you must install a speech-to-text language pack. Due to their size, these are not included with Media Server by default. For more information, see Install Speech-to-Text Language Packs

Configuration Parameter | Description
--- | ---
AlternativeWordsThreshold | A threshold that alternative words must meet to be included in the output.
CustomLanguageModel | The identifier and interpolation weight of each custom language model to use.
CustomWordDatabase | The name of a custom word database to use.
FilterMusic | Specifies whether to include speech-to-text results for audio segments identified as music or noise.
GPUDeviceID | The device ID of the GPU to use.
Input | The audio track to process.
LanguagePack | The language pack to use.
MatchWords | A comma-separated list of words to tag in the speech-to-text output.
MatchWordsAddUnknown | Specifies whether to add any unknown `MatchWords` to the language resource.
MatchWordsCaseSensitive | Specifies whether matches between `MatchWords` and the speech-to-text output are case-sensitive.
MatchWordsThreshold | The minimum score that is necessary for an alternative word to be considered a match to one of the words specified by `MatchWords`.
ModelVersion | The model to use to convert speech into text.
NumParallel | The maximum number of audio segments to process concurrently.
SpeedBias | Specifies whether to prioritize processing accuracy or speed.
SyncDatabase | Specifies whether to synchronize with the training database before beginning the analysis task.
Type | The analysis engine to use. Set this parameter to `SpeechToText`.

## Output Tracks

Output track | Description
--- | ---
`Result` | Contains a record for each word.

For more information see Speech-to-Text Results or use the action GetExampleRecord.

Copyright 2025 Open Text
Version 25.3 | Last updated July 2025

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Product: Knowledge Discovery Media Server 25.3

Topic Title: Speech-To-Text