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# WavToText

The `WavToText` task converts an audio file into a text transcript.

## Parameters

Parameter | Description | Required
--- | --- | ---
Type | The task name. Specify `WavToText`. | Yes
Conf | Whether to generate word confidence scores. |
Diag | Whether to generate diagnostic information. |
DiagFile | The alignment diagnostics file to generate. |
DnnScale | The DNN output acoustic score scaling factor. |
EndTime | The end of an audio section to process. |
File | The audio file to process. | Yes
Lang | The language pack to use. | Yes
LatFile | The name of the lattice file that contains word hypotheses. |
LatScale | The depth of the lattice. |
LatWinSize | The size (in seconds) of the lattice output window. |
LatWordFile | A list of words to find. |
Mode | The algorithm mode for the speech-to-text process. |
ModeValue | The value of the parameter associated with the speech-to-text algorithm mode. |
Out | The file to write the transcription to. | Yes
StartTime | The beginning of an audio section to process. |
SugdInputChannels | The channel layout of the input media file. |
SugdInputFrequency | The sampling rate of the input media file. |

## Example

    http://localhost:13000/action=AddTask&Type=WavToText&File=C:/myData/Speech.wav&Out=SpeechTranscript.ctm&Lang=ENUS

This action uses port `13000` to instruct IDOL Speech Server, which is located on the local machine, to perform the `WavToText` task on the `Speech.wav` file and write the results to the `SpeechTranscript.ctm` file. The `Speech.wav` file contains U.S. English dialect speech.

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