diff --git a/packages/google-cloud-mediatranslation/samples/generated/v1beta1/snippet_metadata.google.cloud.mediatranslation.v1beta1.json b/packages/google-cloud-mediatranslation/samples/generated/v1beta1/snippet_metadata.google.cloud.mediatranslation.v1beta1.json
index 1ba6c0153d9..61282734805 100644
--- a/packages/google-cloud-mediatranslation/samples/generated/v1beta1/snippet_metadata.google.cloud.mediatranslation.v1beta1.json
+++ b/packages/google-cloud-mediatranslation/samples/generated/v1beta1/snippet_metadata.google.cloud.mediatranslation.v1beta1.json
@@ -22,7 +22,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 66,
+                    "end": 69,
                     "type": "FULL"
                 }
             ],
diff --git a/packages/google-cloud-mediatranslation/samples/generated/v1beta1/speech_translation_service.streaming_translate_speech.js b/packages/google-cloud-mediatranslation/samples/generated/v1beta1/speech_translation_service.streaming_translate_speech.js
index feaebce89e8..beab148da7e 100644
--- a/packages/google-cloud-mediatranslation/samples/generated/v1beta1/speech_translation_service.streaming_translate_speech.js
+++ b/packages/google-cloud-mediatranslation/samples/generated/v1beta1/speech_translation_service.streaming_translate_speech.js
@@ -23,6 +23,9 @@
 function main() {
   // [START mediatranslation_v1beta1_generated_SpeechTranslationService_StreamingTranslateSpeech_async]
   /**
+   * This snippet has been automatically generated and should be regarded as a code template only.
+   * It will require modifications to work.
+   * It may require correct/in-range values for request initialization.
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
diff --git a/packages/google-cloud-mediatranslation/src/v1beta1/speech_translation_service_client.ts b/packages/google-cloud-mediatranslation/src/v1beta1/speech_translation_service_client.ts
index 679018723b0..08cec756204 100644
--- a/packages/google-cloud-mediatranslation/src/v1beta1/speech_translation_service_client.ts
+++ b/packages/google-cloud-mediatranslation/src/v1beta1/speech_translation_service_client.ts
@@ -246,7 +246,8 @@ export class SpeechTranslationServiceClient {
       const apiCall = this._gaxModule.createApiCall(
         callPromise,
         this._defaults[methodName],
-        descriptor
+        descriptor,
+        this._opts.fallback
       );
 
       this.innerApiCalls[methodName] = apiCall;
diff --git a/packages/google-cloud-mediatranslation/test/gapic_speech_translation_service_v1beta1.ts b/packages/google-cloud-mediatranslation/test/gapic_speech_translation_service_v1beta1.ts
index a703fa613bc..4f35032bf94 100644
--- a/packages/google-cloud-mediatranslation/test/gapic_speech_translation_service_v1beta1.ts
+++ b/packages/google-cloud-mediatranslation/test/gapic_speech_translation_service_v1beta1.ts
@@ -51,124 +51,126 @@ function stubBidiStreamingCall<ResponseType>(
 }
 
 describe('v1beta1.SpeechTranslationServiceClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
-        .servicePath;
-    assert(servicePath);
-  });
+  describe('Common methods', () => {
+    it('has servicePath', () => {
+      const servicePath =
+        speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
+          .servicePath;
+      assert(servicePath);
+    });
 
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
-        .apiEndpoint;
-    assert(apiEndpoint);
-  });
+    it('has apiEndpoint', () => {
+      const apiEndpoint =
+        speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
+          .apiEndpoint;
+      assert(apiEndpoint);
+    });
 
-  it('has port', () => {
-    const port =
-      speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
-        .port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
+    it('has port', () => {
+      const port =
+        speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient
+          .port;
+      assert(port);
+      assert(typeof port === 'number');
+    });
 
-  it('should create a client with no option', () => {
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient();
-    assert(client);
-  });
+    it('should create a client with no option', () => {
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient();
+      assert(client);
+    });
 
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          fallback: true,
-        }
-      );
-    assert(client);
-  });
+    it('should create a client with gRPC fallback', () => {
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            fallback: true,
+          }
+        );
+      assert(client);
+    });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        }
-      );
-    assert.strictEqual(client.speechTranslationServiceStub, undefined);
-    await client.initialize();
-    assert(client.speechTranslationServiceStub);
-  });
+    it('has initialize method and supports deferred initialization', async () => {
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      assert.strictEqual(client.speechTranslationServiceStub, undefined);
+      await client.initialize();
+      assert(client.speechTranslationServiceStub);
+    });
 
-  it('has close method for the initialized client', done => {
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        }
-      );
-    client.initialize();
-    assert(client.speechTranslationServiceStub);
-    client.close().then(() => {
-      done();
+    it('has close method for the initialized client', done => {
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.initialize();
+      assert(client.speechTranslationServiceStub);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        }
-      );
-    assert.strictEqual(client.speechTranslationServiceStub, undefined);
-    client.close().then(() => {
-      done();
+    it('has close method for the non-initialized client', done => {
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      assert.strictEqual(client.speechTranslationServiceStub, undefined);
+      client.close().then(() => {
+        done();
+      });
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        }
-      );
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
+    it('has getProjectId method', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+      const result = await client.getProjectId();
+      assert.strictEqual(result, fakeProjectId);
+      assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
 
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
-        {
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        }
-      );
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
+    it('has getProjectId method with callback', async () => {
+      const fakeProjectId = 'fake-project-id';
+      const client =
+        new speechtranslationserviceModule.v1beta1.SpeechTranslationServiceClient(
+          {
+            credentials: {client_email: 'bogus', private_key: 'bogus'},
+            projectId: 'bogus',
+          }
+        );
+      client.auth.getProjectId = sinon
+        .stub()
+        .callsArgWith(0, null, fakeProjectId);
+      const promise = new Promise((resolve, reject) => {
+        client.getProjectId((err?: Error | null, projectId?: string | null) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(projectId);
+          }
+        });
       });
+      const result = await promise;
+      assert.strictEqual(result, fakeProjectId);
     });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
   });
 
   describe('streamingTranslateSpeech', () => {