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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis page documents various versions of the \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum within the \u003ccode\u003eGoogle.Cloud.Dialogflow.Cx.V3\u003c/code\u003e namespace, ranging from version 1.0.0 to the latest version, 2.23.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum defines the audio encoding options available for Text-To-Speech output, such as \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 linked version number provides specific documentation for the \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum as it existed in that particular release of the Google Cloud Dialogflow CX V3 library.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e supports a variety of audio formats from uncompressed to compressed formats, with their respective bitrates and encoding methods, and their advantages.\u003c/p\u003e\n"]]],[],null,[]]
