Uncompressed 16-bit signed little-endian samples (Linear PCM).
Audio content returned as LINEAR16 also contains a WAV header.
Mp3
MP3 audio at 32kbps.
Mp364Kbps
MP3 audio at 64kbps.
Mulaw
8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
OggOpus
Opus encoded audio wrapped in an ogg container. The result will be a
file which can be played natively on Android, and in browsers (at least
Chrome and Firefox). The quality of the encoding is considerably higher
than MP3 while using approximately the same bitrate.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eGoogle.Cloud.Dialogflow.Cx.V3.OutputAudioEncoding\u003c/code\u003e is 2.23.0, and the list contains versions from 1.0.0 to 2.23.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum defines the audio encoding options for the output audio in Text-To-Speech within the Google.Cloud.Dialogflow.Cx.V3 namespace.\u003c/p\u003e\n"],["\u003cp\u003eThe supported audio encoding formats include \u003ccode\u003eLinear16\u003c/code\u003e, \u003ccode\u003eMp3\u003c/code\u003e, \u003ccode\u003eMp364Kbps\u003c/code\u003e, \u003ccode\u003eMulaw\u003c/code\u003e, \u003ccode\u003eOggOpus\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eEach audio encoding field contains a brief description, such as the \u003ccode\u003eLinear16\u003c/code\u003e field, which specifies uncompressed 16-bit signed little-endian samples, and the \u003ccode\u003eOggOpus\u003c/code\u003e field, which indicates a higher quality encoding than MP3.\u003c/p\u003e\n"]]],[],null,[]]
