Synchronize new proto/yaml changes.

PiperOrigin-RevId: 249470705

google/cloud/speech/v1p1beta1/cloud_speech.proto

@@ -200,6 +200,11 @@ message RecognitionConfig {
     // is replaced with a single byte containing the block length. Only Speex
     // wideband is supported. `sample_rate_hertz` must be 16000.
     SPEEX_WITH_HEADER_BYTE = 7;
+
+    // MP3 audio. Support all standard MP3 bitrates (which range from 32-320
+    // kbps). When using this encoding, `sample_rate_hertz` can be optionally
+    // unset if not known.
+    MP3 = 8;
   }
 
   // Encoding of audio data sent in all `RecognitionAudio` messages.
@@ -511,6 +516,16 @@ message SpeechContext {
   // to add additional words to the vocabulary of the recognizer. See
   // [usage limits](/speech-to-text/quotas#content).
   repeated string phrases = 1;
+
+  // Hint Boost. Positive value will increase the probability that a specific
+  // phrase will be recognized over other similar sounding phrases. The higher
+  // the boost, the higher the chance of false positive recognition as well.
+  // Negative boost values would correspond to anti-biasing. Anti-biasing is not
+  // enabled, so negative boost will simply be ignored. Though `boost` can
+  // accept a wide range of positive values, most use cases are best served with
+  // values between 0 and 20. We recommend using a binary search approach to
+  // finding the optimal value for your use case.
+  float boost = 4;
 }
 
 // Contains audio data in the encoding specified in the `RecognitionConfig`.