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Enum AudioEncoding (0.83.0)
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public enum AudioEncoding extends Enum<AudioEncoding> implements ProtocolMessageEnum
Audio encoding of the audio content sent in the conversational query request.
Refer to the
Cloud Speech API
documentation for more
details.
Protobuf enum google.cloud.dialogflow.cx.v3beta1.AudioEncoding
Static Fields
Name
Description
AUDIO_ENCODING_ALAW
8-bit samples that compand 13-bit audio samples using G.711 PCMU/a-law.
AUDIO_ENCODING_ALAW = 8;
AUDIO_ENCODING_ALAW_VALUE
8-bit samples that compand 13-bit audio samples using G.711 PCMU/a-law.
AUDIO_ENCODING_ALAW = 8;
AUDIO_ENCODING_AMR
Adaptive Multi-Rate Narrowband codec. sample_rate_hertz
must be 8000.
AUDIO_ENCODING_AMR = 4;
AUDIO_ENCODING_AMR_VALUE
Adaptive Multi-Rate Narrowband codec. sample_rate_hertz
must be 8000.
AUDIO_ENCODING_AMR = 4;
AUDIO_ENCODING_AMR_WB
Adaptive Multi-Rate Wideband codec. sample_rate_hertz
must be 16000.
AUDIO_ENCODING_AMR_WB = 5;
AUDIO_ENCODING_AMR_WB_VALUE
Adaptive Multi-Rate Wideband codec. sample_rate_hertz
must be 16000.
AUDIO_ENCODING_AMR_WB = 5;
AUDIO_ENCODING_FLAC
FLAC
(Free Lossless Audio
Codec) is the recommended encoding because it is lossless (therefore
recognition is not compromised) and requires only about half the
bandwidth of LINEAR16
. FLAC
stream encoding supports 16-bit and
24-bit samples, however, not all fields in STREAMINFO
are supported.
AUDIO_ENCODING_FLAC = 2;
AUDIO_ENCODING_FLAC_VALUE
FLAC
(Free Lossless Audio
Codec) is the recommended encoding because it is lossless (therefore
recognition is not compromised) and requires only about half the
bandwidth of LINEAR16
. FLAC
stream encoding supports 16-bit and
24-bit samples, however, not all fields in STREAMINFO
are supported.
AUDIO_ENCODING_FLAC = 2;
AUDIO_ENCODING_LINEAR_16
Uncompressed 16-bit signed little-endian samples (Linear PCM).
AUDIO_ENCODING_LINEAR_16 = 1;
AUDIO_ENCODING_LINEAR_16_VALUE
Uncompressed 16-bit signed little-endian samples (Linear PCM).
AUDIO_ENCODING_LINEAR_16 = 1;
AUDIO_ENCODING_MULAW
8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
AUDIO_ENCODING_MULAW = 3;
AUDIO_ENCODING_MULAW_VALUE
8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
AUDIO_ENCODING_MULAW = 3;
AUDIO_ENCODING_OGG_OPUS
Opus encoded audio frames in Ogg container
(OggOpus ).
sample_rate_hertz
must be 16000.
AUDIO_ENCODING_OGG_OPUS = 6;
AUDIO_ENCODING_OGG_OPUS_VALUE
Opus encoded audio frames in Ogg container
(OggOpus ).
sample_rate_hertz
must be 16000.
AUDIO_ENCODING_OGG_OPUS = 6;
Although the use of lossy encodings is not recommended, if a very low
bitrate encoding is required, OGG_OPUS
is highly preferred over
Speex encoding. The Speex encoding supported by
Dialogflow API has a header byte in each block, as in MIME type
audio/x-speex-with-header-byte
.
It is a variant of the RTP Speex encoding defined in
RFC 5574 .
The stream is a sequence of blocks, one block per RTP packet. Each block
starts with a byte containing the length of the block, in bytes, followed
by one or more frames of Speex data, padded to an integral number of
bytes (octets) as specified in RFC 5574. In other words, each RTP header
is replaced with a single byte containing the block length. Only Speex
wideband is supported. sample_rate_hertz
must be 16000.
AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
Although the use of lossy encodings is not recommended, if a very low
bitrate encoding is required, OGG_OPUS
is highly preferred over
Speex encoding. The Speex encoding supported by
Dialogflow API has a header byte in each block, as in MIME type
audio/x-speex-with-header-byte
.
It is a variant of the RTP Speex encoding defined in
RFC 5574 .
The stream is a sequence of blocks, one block per RTP packet. Each block
starts with a byte containing the length of the block, in bytes, followed
by one or more frames of Speex data, padded to an integral number of
bytes (octets) as specified in RFC 5574. In other words, each RTP header
is replaced with a single byte containing the block length. Only Speex
wideband is supported. sample_rate_hertz
must be 16000.
AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
AUDIO_ENCODING_UNSPECIFIED
Not specified.
AUDIO_ENCODING_UNSPECIFIED = 0;
AUDIO_ENCODING_UNSPECIFIED_VALUE
Not specified.
AUDIO_ENCODING_UNSPECIFIED = 0;
UNRECOGNIZED
Static Methods
Name
Description
forNumber(int value)
getDescriptor()
internalGetValueMap()
valueOf(Descriptors.EnumValueDescriptor desc)
valueOf(int value)
Deprecated. Use #forNumber(int) instead.
valueOf(String name)
values()
Methods
Name
Description
getDescriptorForType()
getNumber()
getValueDescriptor()
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Last updated 2025-08-18 UTC.
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-18 UTC."],[],[],null,["# Enum AudioEncoding (0.83.0)\n\nVersion latestkeyboard_arrow_down\n\n- [0.83.0 (latest)](/java/docs/reference/google-cloud-dialogflow-cx/latest/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.81.0](/java/docs/reference/google-cloud-dialogflow-cx/0.81.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.79.0](/java/docs/reference/google-cloud-dialogflow-cx/0.79.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.78.0](/java/docs/reference/google-cloud-dialogflow-cx/0.78.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.75.0](/java/docs/reference/google-cloud-dialogflow-cx/0.75.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.74.0](/java/docs/reference/google-cloud-dialogflow-cx/0.74.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.73.0](/java/docs/reference/google-cloud-dialogflow-cx/0.73.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.71.0](/java/docs/reference/google-cloud-dialogflow-cx/0.71.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.70.0](/java/docs/reference/google-cloud-dialogflow-cx/0.70.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.69.0](/java/docs/reference/google-cloud-dialogflow-cx/0.69.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.68.0](/java/docs/reference/google-cloud-dialogflow-cx/0.68.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- 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[0.58.0](/java/docs/reference/google-cloud-dialogflow-cx/0.58.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.57.0](/java/docs/reference/google-cloud-dialogflow-cx/0.57.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.56.0](/java/docs/reference/google-cloud-dialogflow-cx/0.56.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.55.0](/java/docs/reference/google-cloud-dialogflow-cx/0.55.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.54.0](/java/docs/reference/google-cloud-dialogflow-cx/0.54.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.53.0](/java/docs/reference/google-cloud-dialogflow-cx/0.53.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.52.0](/java/docs/reference/google-cloud-dialogflow-cx/0.52.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.51.0](/java/docs/reference/google-cloud-dialogflow-cx/0.51.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.50.0](/java/docs/reference/google-cloud-dialogflow-cx/0.50.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.48.0](/java/docs/reference/google-cloud-dialogflow-cx/0.48.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.47.0](/java/docs/reference/google-cloud-dialogflow-cx/0.47.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.46.0](/java/docs/reference/google-cloud-dialogflow-cx/0.46.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.45.0](/java/docs/reference/google-cloud-dialogflow-cx/0.45.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.44.0](/java/docs/reference/google-cloud-dialogflow-cx/0.44.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.43.0](/java/docs/reference/google-cloud-dialogflow-cx/0.43.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.42.0](/java/docs/reference/google-cloud-dialogflow-cx/0.42.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- 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[0.31.0](/java/docs/reference/google-cloud-dialogflow-cx/0.31.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.30.0](/java/docs/reference/google-cloud-dialogflow-cx/0.30.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.29.0](/java/docs/reference/google-cloud-dialogflow-cx/0.29.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.28.0](/java/docs/reference/google-cloud-dialogflow-cx/0.28.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.27.0](/java/docs/reference/google-cloud-dialogflow-cx/0.27.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.26.0](/java/docs/reference/google-cloud-dialogflow-cx/0.26.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.25.0](/java/docs/reference/google-cloud-dialogflow-cx/0.25.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.24.0](/java/docs/reference/google-cloud-dialogflow-cx/0.24.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.23.0](/java/docs/reference/google-cloud-dialogflow-cx/0.23.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.22.0](/java/docs/reference/google-cloud-dialogflow-cx/0.22.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.20.0](/java/docs/reference/google-cloud-dialogflow-cx/0.20.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.19.0](/java/docs/reference/google-cloud-dialogflow-cx/0.19.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.18.0](/java/docs/reference/google-cloud-dialogflow-cx/0.18.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.17.0](/java/docs/reference/google-cloud-dialogflow-cx/0.17.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.16.0](/java/docs/reference/google-cloud-dialogflow-cx/0.16.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.15.0](/java/docs/reference/google-cloud-dialogflow-cx/0.15.0/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.14.7](/java/docs/reference/google-cloud-dialogflow-cx/0.14.7/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.13.1](/java/docs/reference/google-cloud-dialogflow-cx/0.13.1/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.12.1](/java/docs/reference/google-cloud-dialogflow-cx/0.12.1/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding)\n- [0.11.5](/java/docs/reference/google-cloud-dialogflow-cx/0.11.5/com.google.cloud.dialogflow.cx.v3beta1.AudioEncoding) \n\n public enum AudioEncoding extends Enum\u003cAudioEncoding\u003e implements ProtocolMessageEnum\n\nAudio encoding of the audio content sent in the conversational query request.\nRefer to the\n[Cloud Speech API\ndocumentation](https://cloud.google.com/speech-to-text/docs/basics) for more\ndetails.\n\nProtobuf enum `google.cloud.dialogflow.cx.v3beta1.AudioEncoding` \n\nImplements\n----------\n\n[ProtocolMessageEnum](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ProtocolMessageEnum.html) \n\nInherited Members\n-----------------\n\n[Enum.\\\u003cT\\\u003evalueOf(Class\\\u003cT\\\u003e,String)](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#valueOf-java.lang.Class-java.lang.String-) \n[Enum.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#clone--) \n[Enum.compareTo(E)](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#compareTo-E-) \n[Enum.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#equals-java.lang.Object-) \n[Enum.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#finalize--) \n[Enum.getDeclaringClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#getDeclaringClass--) \n[Enum.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#hashCode--) \n[Enum.name()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#name--) \n[Enum.ordinal()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#ordinal--) \n[Enum.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html#toString--) \n[Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) \n[Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) \n[Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) \n[Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) \n[Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) \n[Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)"]]