8-bit samples that compand 14-bit audio samples using G.711 PCMU/A-law.
Audio content returned as ALAW also contains a WAV header.
Linear16
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 at 64kbps.
Mulaw
8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
Audio content returned as MULAW also contains a WAV header.
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.
Unspecified
Not specified. Will return result
[google.rpc.Code.INVALID_ARGUMENT][google.rpc.Code.INVALID_ARGUMENT].
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 document provides reference documentation for the \u003ccode\u003eAudioEncoding\u003c/code\u003e enum within the Google Cloud Text-to-Speech v1beta1 API, detailing configurations for setting up audio encoders and determining the output audio format.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAudioEncoding\u003c/code\u003e enum, found in the \u003ccode\u003eGoogle.Cloud.TextToSpeech.V1Beta1\u003c/code\u003e namespace, is defined in the \u003ccode\u003eGoogle.Cloud.TextToSpeech.V1Beta1.dll\u003c/code\u003e assembly and lists the supported encoding formats.\u003c/p\u003e\n"],["\u003cp\u003eSupported audio encoding formats include \u003ccode\u003eAlaw\u003c/code\u003e, \u003ccode\u003eLinear16\u003c/code\u003e, \u003ccode\u003eMp3\u003c/code\u003e, \u003ccode\u003eMp364Kbps\u003c/code\u003e, \u003ccode\u003eMulaw\u003c/code\u003e, and \u003ccode\u003eOggOpus\u003c/code\u003e, each with specific characteristics and descriptions regarding bit rate and audio format, and it also includes \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe document includes links for version history for the \u003ccode\u003eAudioEncoding\u003c/code\u003e enum, which includes beta releases 2.0.0-beta12 (latest), 2.0.0-beta11, and 1.0.0-beta04.\u003c/p\u003e\n"]]],[],null,[]]
