Audio Recognition on Android article: https://medium.com/@dmitry.kurtaev/audio-recognition-in-android-with-openvino-5d51e71f1426

build.gradle

repositories {
    mavenCentral()

    def github = ivy {
        url "https://github.com/"

        patternLayout {
            artifact '/[organisation]/[module]/releases/download/[revision]/openvino-[revision]-[classifier].[ext]'
        }

        metadataSources { artifact() }
    }

    exclusiveContent {
        forRepositories(github)
        filter { includeGroup("dkurt") }
    }
}

core.java

InputStream in = Core.class.getClassLoader().getResourceAsStream("plugins.xml");

String pluginsXml = "";
try {
    Path path = Files.createTempFile("plugins", "xml");
    Files.copy(in, path, StandardCopyOption.REPLACE_EXISTING);
    pluginsXml = path.toString();
} catch (IOException e) {
    e.printStackTrace();
}

Core core = new Core(pluginsXml);

deps.gradle

dependencies {
  implementation "dkurt:openvino_java:2022.2:android-arm64-v8a@aar"
}

infer.java

InferRequest ireq = compiledModel.create_infer_request();
Tensor input = new Tensor(new int[]{1, 16000}, audioData);
ireq.set_input_tensor(input);
ireq.infer();
Tensor output = ireq.get_output_tensor();
float[] outputData = output.data();

init.java

import org.intel.openvino.*;

System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

model.java

Model model = core.read_model(modelXml, modelBin);
CompiledModel compiledModel = core.compile_model(model, "CPU");

recorder.java

AudioRecord recorder = new AudioRecord(
    MediaRecorder.AudioSource.MIC,
    16000,
    AudioFormat.CHANNEL_IN_MONO,
    AudioFormat.ENCODING_PCM_FLOAT,
    16000 * 4
);
recorder.startRecording();
float[] audioData = new float[16000];
recorder.read(audioData, 0, 16000, AudioRecord.READ_BLOCKING);
recorder.stop();
recorder.release();