diff --git a/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfig.java b/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfig.java
index c84131df0b19..82054218c95e 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfig.java
+++ b/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfig.java
@@ -950,17 +950,11 @@ public com.google.protobuf.ByteString getModelBytes() {
    * <pre>
    * *Optional* Set to true to use an enhanced model for speech recognition.
    * If `use_enhanced` is set to true and the `model` field is not set, then
-   * an appropriate enhanced model is chosen if:
-   * 1. project is eligible for requesting enhanced models
-   * 2. an enhanced model exists for the audio
+   * an appropriate enhanced model is chosen if an enhanced model exists for
+   * the audio.
    * If `use_enhanced` is true and an enhanced version of the specified model
    * does not exist, then the speech is recognized using the standard version
    * of the specified model.
-   * Enhanced speech models require that you opt-in to data logging using
-   * instructions in the
-   * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-   * `use_enhanced` to true and you have not enabled audio logging, then you
-   * will receive an error.
    * </pre>
    *
    * <code>bool use_enhanced = 14;</code>
@@ -2989,17 +2983,11 @@ public Builder setModelBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
@@ -3013,17 +3001,11 @@ public boolean getUseEnhanced() {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
@@ -3040,17 +3022,11 @@ public Builder setUseEnhanced(boolean value) {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
diff --git a/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfigOrBuilder.java b/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfigOrBuilder.java
index ed22e249d4c1..972f5558b544 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfigOrBuilder.java
+++ b/google-api-grpc/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/RecognitionConfigOrBuilder.java
@@ -360,17 +360,11 @@ public interface RecognitionConfigOrBuilder
    * <pre>
    * *Optional* Set to true to use an enhanced model for speech recognition.
    * If `use_enhanced` is set to true and the `model` field is not set, then
-   * an appropriate enhanced model is chosen if:
-   * 1. project is eligible for requesting enhanced models
-   * 2. an enhanced model exists for the audio
+   * an appropriate enhanced model is chosen if an enhanced model exists for
+   * the audio.
    * If `use_enhanced` is true and an enhanced version of the specified model
    * does not exist, then the speech is recognized using the standard version
    * of the specified model.
-   * Enhanced speech models require that you opt-in to data logging using
-   * instructions in the
-   * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-   * `use_enhanced` to true and you have not enabled audio logging, then you
-   * will receive an error.
    * </pre>
    *
    * <code>bool use_enhanced = 14;</code>
diff --git a/google-api-grpc/proto-google-cloud-speech-v1/src/main/proto/google/cloud/speech/v1/cloud_speech.proto b/google-api-grpc/proto-google-cloud-speech-v1/src/main/proto/google/cloud/speech/v1/cloud_speech.proto
index 0966c11c3a54..90ff515b5f76 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1/src/main/proto/google/cloud/speech/v1/cloud_speech.proto
+++ b/google-api-grpc/proto-google-cloud-speech-v1/src/main/proto/google/cloud/speech/v1/cloud_speech.proto
@@ -315,19 +315,12 @@ message RecognitionConfig {
 
   // *Optional* Set to true to use an enhanced model for speech recognition.
   // If `use_enhanced` is set to true and the `model` field is not set, then
-  // an appropriate enhanced model is chosen if:
-  // 1. project is eligible for requesting enhanced models
-  // 2. an enhanced model exists for the audio
+  // an appropriate enhanced model is chosen if an enhanced model exists for
+  // the audio.
   //
   // If `use_enhanced` is true and an enhanced version of the specified model
   // does not exist, then the speech is recognized using the standard version
   // of the specified model.
-  //
-  // Enhanced speech models require that you opt-in to data logging using
-  // instructions in the
-  // [documentation](/speech-to-text/docs/enable-data-logging). If you set
-  // `use_enhanced` to true and you have not enabled audio logging, then you
-  // will receive an error.
   bool use_enhanced = 14;
 }
 
diff --git a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfig.java b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfig.java
index 6b118933815f..92966cd6eab6 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfig.java
+++ b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfig.java
@@ -1167,17 +1167,11 @@ public com.google.protobuf.ByteString getModelBytes() {
    * <pre>
    * *Optional* Set to true to use an enhanced model for speech recognition.
    * If `use_enhanced` is set to true and the `model` field is not set, then
-   * an appropriate enhanced model is chosen if:
-   * 1. project is eligible for requesting enhanced models
-   * 2. an enhanced model exists for the audio
+   * an appropriate enhanced model is chosen if an enhanced model exists for
+   * the audio.
    * If `use_enhanced` is true and an enhanced version of the specified model
    * does not exist, then the speech is recognized using the standard version
    * of the specified model.
-   * Enhanced speech models require that you opt-in to data logging using
-   * instructions in the
-   * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-   * `use_enhanced` to true and you have not enabled audio logging, then you
-   * will receive an error.
    * </pre>
    *
    * <code>bool use_enhanced = 14;</code>
@@ -3727,17 +3721,11 @@ public Builder setModelBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
@@ -3751,17 +3739,11 @@ public boolean getUseEnhanced() {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
@@ -3778,17 +3760,11 @@ public Builder setUseEnhanced(boolean value) {
      * <pre>
      * *Optional* Set to true to use an enhanced model for speech recognition.
      * If `use_enhanced` is set to true and the `model` field is not set, then
-     * an appropriate enhanced model is chosen if:
-     * 1. project is eligible for requesting enhanced models
-     * 2. an enhanced model exists for the audio
+     * an appropriate enhanced model is chosen if an enhanced model exists for
+     * the audio.
      * If `use_enhanced` is true and an enhanced version of the specified model
      * does not exist, then the speech is recognized using the standard version
      * of the specified model.
-     * Enhanced speech models require that you opt-in to data logging using
-     * instructions in the
-     * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-     * `use_enhanced` to true and you have not enabled audio logging, then you
-     * will receive an error.
      * </pre>
      *
      * <code>bool use_enhanced = 14;</code>
diff --git a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfigOrBuilder.java b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfigOrBuilder.java
index 6e5358abb908..1b71d1c6a738 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfigOrBuilder.java
+++ b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/RecognitionConfigOrBuilder.java
@@ -496,17 +496,11 @@ public interface RecognitionConfigOrBuilder
    * <pre>
    * *Optional* Set to true to use an enhanced model for speech recognition.
    * If `use_enhanced` is set to true and the `model` field is not set, then
-   * an appropriate enhanced model is chosen if:
-   * 1. project is eligible for requesting enhanced models
-   * 2. an enhanced model exists for the audio
+   * an appropriate enhanced model is chosen if an enhanced model exists for
+   * the audio.
    * If `use_enhanced` is true and an enhanced version of the specified model
    * does not exist, then the speech is recognized using the standard version
    * of the specified model.
-   * Enhanced speech models require that you opt-in to data logging using
-   * instructions in the
-   * [documentation](/speech-to-text/docs/enable-data-logging). If you set
-   * `use_enhanced` to true and you have not enabled audio logging, then you
-   * will receive an error.
    * </pre>
    *
    * <code>bool use_enhanced = 14;</code>
diff --git a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/proto/google/cloud/speech/v1p1beta1/cloud_speech.proto b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/proto/google/cloud/speech/v1p1beta1/cloud_speech.proto
index 731d4ee46d31..dd557c5fd5bf 100644
--- a/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/proto/google/cloud/speech/v1p1beta1/cloud_speech.proto
+++ b/google-api-grpc/proto-google-cloud-speech-v1p1beta1/src/main/proto/google/cloud/speech/v1p1beta1/cloud_speech.proto
@@ -359,19 +359,12 @@ message RecognitionConfig {
 
   // *Optional* Set to true to use an enhanced model for speech recognition.
   // If `use_enhanced` is set to true and the `model` field is not set, then
-  // an appropriate enhanced model is chosen if:
-  // 1. project is eligible for requesting enhanced models
-  // 2. an enhanced model exists for the audio
+  // an appropriate enhanced model is chosen if an enhanced model exists for
+  // the audio.
   //
   // If `use_enhanced` is true and an enhanced version of the specified model
   // does not exist, then the speech is recognized using the standard version
   // of the specified model.
-  //
-  // Enhanced speech models require that you opt-in to data logging using
-  // instructions in the
-  // [documentation](/speech-to-text/docs/enable-data-logging). If you set
-  // `use_enhanced` to true and you have not enabled audio logging, then you
-  // will receive an error.
   bool use_enhanced = 14;
 }
 
diff --git a/google-cloud-clients/google-cloud-speech/synth.metadata b/google-cloud-clients/google-cloud-speech/synth.metadata
index d2738f4bfa31..2a3f2663a1c2 100644
--- a/google-cloud-clients/google-cloud-speech/synth.metadata
+++ b/google-cloud-clients/google-cloud-speech/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-06-05T17:58:37.726940Z",
+  "updateTime": "2019-06-27T07:54:55.815171Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.22.0",
-        "dockerImage": "googleapis/artman@sha256:72f6287a42490bfe1609aed491f29411af21df3f744199fe8bb8d276c1fdf419"
+        "version": "0.29.1",
+        "dockerImage": "googleapis/artman@sha256:b2a73f4dda03ef8fcaa973e3ba26d0cf34091f6c22c70add663af325931aef4d"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "47c142a7cecc6efc9f6f8af804b8be55392b795b",
-        "internalRef": "251635729"
+        "sha": "f46206aff84f4b2cde590f1e0791112214f07080",
+        "internalRef": "255318896"
       }
     }
   ],