Parameters Description
src*string
The textual content for converting to speech (length limited by 100KB).
hl*string
The textual content language. Allows values: see Languages.
vstring
The speech voice. Allows values: see Voices. Default value: depends on a language.
rnumber
The speech rate (speed). Allows values: from -10 (slowest speed) up to 10 (fastest speed). Default value: 0 (normal speed).
cstring
The speech audio codec. Allows values: see Audio Codecs. Default value: WAV.
fstring
The speech audio formats. Allows values: see Audio Formats. Default value: 8khz_8bit_mono.
ssmlboolean
The SSML textual content format (see SSML documentation). Allows values: true and false. Default value: false.
b64boolean
Defines output as a Base64 string format (for an internet browser playing). Allows values: true and false. Default value: false.