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Fix the sleep logic for streaming as per sample rate (#279)
* sleep 100ms instead of sleeping as function of rate * added sleep as inverse of sampling rate * added LINEAR16 bytes per sample constant * added few variables * added truth and log4j * added 32khz audio * added Streaming Test * added unit tests for 16 and 32 khz audio * checkstyle fixes * renamed to KHz * added comment
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speech/grpc/src/test/java/com/examples/cloud/speech/StreamingRecognizeClientTest.java
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| /* | ||
| * Copyright 2016 Google Inc. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package com.examples.cloud.speech; | ||
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| import static com.google.common.truth.Truth.assertThat; | ||
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| import io.grpc.ManagedChannel; | ||
| import org.apache.log4j.Logger; | ||
| import org.apache.log4j.SimpleLayout; | ||
| import org.apache.log4j.WriterAppender; | ||
| import org.junit.After; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
| import org.junit.runners.JUnit4; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.io.StringWriter; | ||
| import java.io.Writer; | ||
| import java.net.URI; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
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| /** | ||
| * Unit tests for {@link StreamingRecognizeClient }. | ||
| */ | ||
| @RunWith(JUnit4.class) | ||
| public class StreamingRecognizeClientTest { | ||
| private Writer writer; | ||
| private WriterAppender appender; | ||
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| @Before | ||
| public void setUp() { | ||
| writer = new StringWriter(); | ||
| appender = new WriterAppender(new SimpleLayout(), writer); | ||
| Logger.getRootLogger().addAppender(appender); | ||
| } | ||
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| @After | ||
| public void tearDown() { | ||
| Logger.getRootLogger().removeAppender(appender); | ||
| } | ||
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| @Test | ||
| public void test16KHzAudio() throws InterruptedException, IOException { | ||
| URI uri = new File("resources/audio.raw").toURI(); | ||
| Path path = Paths.get(uri); | ||
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| String host = "speech.googleapis.com"; | ||
| int port = 443; | ||
| ManagedChannel channel = AsyncRecognizeClient.createChannel(host, port); | ||
| StreamingRecognizeClient client = new StreamingRecognizeClient(channel, path.toString(), 16000); | ||
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| client.recognize(); | ||
| assertThat(writer.toString()).contains("transcript: \"how old is the Brooklyn Bridge\""); | ||
| } | ||
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| @Test | ||
| public void test32KHzAudio() throws InterruptedException, IOException { | ||
| URI uri = new File("resources/audio32KHz.raw").toURI(); | ||
| Path path = Paths.get(uri); | ||
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| String host = "speech.googleapis.com"; | ||
| int port = 443; | ||
| ManagedChannel channel = AsyncRecognizeClient.createChannel(host, port); | ||
| StreamingRecognizeClient client = new StreamingRecognizeClient(channel, path.toString(), 32000); | ||
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| client.recognize(); | ||
| assertThat(writer.toString()).contains("transcript: \"how old is the Brooklyn Bridge\""); | ||
| } | ||
| } |