Enum googapis::google::cloud::dialogflow::v2::AudioEncoding [−][src]
#[repr(i32)]
pub enum AudioEncoding {
Unspecified,
Linear16,
Flac,
Mulaw,
Amr,
AmrWb,
OggOpus,
SpeexWithHeaderByte,
}
Expand description
Audio encoding of the audio content sent in the conversational query request. Refer to the Cloud Speech API documentation for more details.
Variants
Not specified.
Uncompressed 16-bit signed little-endian samples (Linear PCM).
[FLAC
](https://xiph.org/flac/documentation.html) (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.
8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.
Adaptive Multi-Rate Narrowband codec. sample_rate_hertz
must be 8000.
Adaptive Multi-Rate Wideband codec. sample_rate_hertz
must be 16000.
Opus encoded audio frames in Ogg container
([OggOpus](https://wiki.xiph.org/OggOpus)).
sample_rate_hertz
must be 16000.
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](https://speex.org/) 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.
Implementations
Trait Implementations
Returns the “default value” for a type. Read more
Performs the conversion.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl RefUnwindSafe for AudioEncoding
impl Send for AudioEncoding
impl Sync for AudioEncoding
impl Unpin for AudioEncoding
impl UnwindSafe for AudioEncoding
Blanket Implementations
Mutably borrows from an owned value. Read more
Compare self to key
and return true
if they are equal.
Wrap the input message T
in a tonic::Request
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more