RecognitionConfig_AudioEncoding class

The encoding of the audio data sent in the request.

All encodings support only 1 channel (mono) audio, unless the audio_channel_count and enable_separate_recognition_per_channel fields are set.

For best results, the audio source should be captured and transmitted using a lossless encoding (FLAC or LINEAR16). The accuracy of the speech recognition can be reduced if lossy codecs are used to capture or transmit audio, particularly if background noise is present. Lossy codecs include MULAW, AMR, AMR_WB, OGG_OPUS, SPEEX_WITH_HEADER_BYTE, MP3, and WEBM_OPUS.

The FLAC and WAV audio file formats include a header that describes the included audio content. You can request recognition for WAV files that contain either LINEAR16 or MULAW encoded audio. If you send FLAC or WAV audio file format in your request, you do not need to specify an AudioEncoding; the audio encoding format is determined from the file header. If you specify an AudioEncoding when you send send FLAC or WAV audio, the encoding configuration must match the encoding described in the audio header; otherwise the request returns an google.rpc.Code.INVALID_ARGUMENT error code.

Inheritance
  • Object
  • ProtobufEnum
  • RecognitionConfig_AudioEncoding

Properties

hashCode → int
The hash code for this object.
no setterinherited
name → String
This enum's name, as specified in the .proto file.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → int
This enum's integer value, as specified in the .proto file.
finalinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
Returns this enum's name or the value if names are not represented.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

valueOf(int value) → RecognitionConfig_AudioEncoding?