TTS: Define a Text-To-Speech Engine
In pmur002/director: Automate video demonstrations

Description Usage Arguments Details Value Author(s) References See Also

View source: R/tts.R

Define a text-to-speech engine that can convert text into audio.

TTS(read, speak, ...)
espeakTTS()
pollyTTS(voice="Matthew",
         engine=c("standard", "neural"),
         format=c("mp3", "ogg_vorbis", "pcm"),
         sampleRate="default",
         language=NULL,
         lexicons=NULL,
         docker=FALSE)

`read`	A function that reads text from a `<dialogue>` element. This function should return a character value that is in a format that the corresponding `speak` function can consume. This function should be able to handle SSML content, even if it is only to ignore it.
`speak`	A function that accepts the name of an `infile` containing text (or SMML) and the name of an `outfile` that the function should write to. This function is responsible for generating audio from the `infile` text and saving that audio in the `outfile`.
`...`	Other arguments passed to the TTS engine.
`voice`	The name of an Amazon Polly voice.
`engine`	The name of an Amazon Polly engine; either `"standard"` or `"neural"`.
`format`	The format for the audio recording.
`sampleRate`	The sample rate for the audio recording. The default value depends on the choice of engine and format.
`language`	The language used for the audio recording (only some voices are multilingual).
`lexicons`	The lexicons (special pronunciations) used for the audio recording; a vector of filenames.
`docker`	A logical indicating whether to use Docker image for AWS CLI control of Polly (rather than local install of AWS CLI).

The TTS function is for defining new TTS engines for recording the audio in a video. The espeakTTS and pollyTTS functions define TTS engines based on the espeak and Amazon Polly text-to-speech systems.

The pollyTTS engine assumes that the Amazon CLI has been installed and configured.

An object of class DirectorTTS.

Paul Murrell

espeak http://espeak.sourceforge.net/. Amazon Polly https://aws.amazon.com/polly/.

shootVideo

pmur002/director documentation built on Feb. 18, 2021, 10:23 p.m.