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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 available for \u003ccode\u003eGoogle.Cloud.Dialogflow.Cx.V3.OutputAudioEncoding\u003c/code\u003e is 2.23.0, and the page also lists several other versions, ranging down to version 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides documentation for the \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum used within the Dialogflow v3 API, which specifies the format for Text-To-Speech output audio.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum supports several audio formats, including \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\u003eThe description of the \u003ccode\u003eOggOpus\u003c/code\u003e field specifies that it offers higher encoding quality than MP3 at approximately the same bitrate and can be played natively on Android and in browsers like Chrome and Firefox.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eLinear16\u003c/code\u003e format returns uncompressed 16-bit audio samples and also includes a WAV header.\u003c/p\u003e\n"]]],[],null,[]]
