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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 Google.Cloud.Dialogflow.Cx.V3 library is 2.23.0, with a full list of previous versions available ranging from 2.22.0 back to 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation provided outlines the \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum used in the Dialogflow v3 API, which is within the namespace Google.Cloud.Dialogflow.Cx.V3.\u003c/p\u003e\n"],["\u003cp\u003eThis \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum defines various audio encoding formats 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\u003eThe \u003ccode\u003eOutputAudioEncoding\u003c/code\u003e enum defines parameters that specify how the audio will be encoded when retrieved, with \u003ccode\u003eLinear16\u003c/code\u003e being uncompressed, and \u003ccode\u003eOggOpus\u003c/code\u003e offering high-quality encoding.\u003c/p\u003e\n"]]],[],null,[]]