TextToSpeech procedure

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Converts a plain text into an audio stream.

Parameters

Configuration

The following table resumes the configuration properties (access credentials) you must set in order to use this AI task.

  PropertyKey
ProviderType Id Key SecretKey
Alibaba 智能语音交互 app-key 用户AccessKey 用户AccessKey
Amazon - Transcribe Transcribe
Baidu 百度语音 百度语音 百度语音
Google - Cloud Speech API -
IBM - TextToSpeech API  -
Microsoft - Speech API -
SAP - - -
Tencent 音合成 音合成 -

Sample

Taking the following plain text, the table below shows the synthesis made for each provider and the time it takes for processing it.

"The first question that comes up is: What is GeneXus? GeneXus is a tool that automatically generates software programs such as applications for the Web, and Smart Devices, always at the forefront of technological evolution."
 
Provider Output Benchmark
Alibaba

3325ms
Amazon

1486ms
Baidu 

4634ms
Google

1887ms
IBM

3205ms
Microsoft

3412ms
SAP N/A N/A
Tencent

4614ms


The &Text input parameter also admits SSML inner nodes (excluding <speak> root) for formatting pronunciation, intonation, etc. For example:

"<emphasis level='strong'>GeneXus<emphasis> is a tool that <prosody pinth='high'>automatically generates software programs</prosody> such as applications for the Web, and <sub alias='Smart Devices'>SD</sub>, with over <say-as interpret-as='cardinal'>30</say-as> years of experience."


Giving the following result:

Notes

  • For SSML input, not all of the elements and options of W3 SSML specification are currently supported on every provider. GeneXusAI specifically does not allow the  <voice> tag, it must be set in the &voiceType input parameter.
  • For Google Cloud AI, when you enable Speech Cloud API to use this task, you must select 'Standard Voices' option.
  • Tencent AI and Baidu AI providers only allow Chinese or English (or mixed) text input.
  • Microsoft's Bing Speech API will be deprecated and its credentials must be updated to Speech API before October 2019.

Scope

Platforms  Web(.NET,.NETCore,Java), SmartDevices(Android,iOS)
Connectivity  Online

Availability

This procedure is available as of GeneXus 16.

See also

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