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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 Dialogflow v3 API's \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e is 2.23.0, with numerous prior versions available for reference, down to version 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum defines the audio format for Text-To-Speech output, and is part of the Google.Cloud.Dialogflow.Cx.V3 namespace.\u003c/p\u003e\n"],["\u003cp\u003eAvailable audio encodings include \u003ccode\u003eLinear16\u003c/code\u003e (uncompressed 16-bit PCM), \u003ccode\u003eMp3\u003c/code\u003e (32kbps), \u003ccode\u003eMp364Kbps\u003c/code\u003e (64kbps), \u003ccode\u003eMulaw\u003c/code\u003e (8-bit G.711 PCMU), and \u003ccode\u003eOggOpus\u003c/code\u003e (Opus in Ogg container).\u003c/p\u003e\n"],["\u003cp\u003eThe enum also includes an \u003ccode\u003eUnspecified\u003c/code\u003e field to represent no specified encoding.\u003c/p\u003e\n"]]],[],null,[]]
