- text
- The string of text. Example: "south_south_east"
- file
- File object pointing to the sound file.
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Adds a mapping between a CharSequence (may be spanned with TtsSpans and a sound file. Using this, it is possible to add custom pronounciations for a string of text. After a call to this method, subsequent calls to TextToSpeech.speak(java.lang.String, int, java.util.HashMap<java.lang.String, java.lang.String>) will play the specified sound resource if it is available, or synthesize the text it is missing.