How to Convert an Audio File to MP3 Format using Java (Audio Conversion API)

Looking for simple, effective audio file conversion APIs? Start with our MP3 conversion API. It’s designed to support a variety of input formats including AAC, FLAC, M4A, MP2, WAV, and more. You can easily implement this API using Java code provided below, or you can check out our API Console page for similar connection code available in 12 additional programming languages.

Start by installing the Java SDK with Maven. Add a reference to the pom.xml repository:

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

Next add a reference to the dependency:

<dependencies>
<dependency>
    <groupId>com.github.Cloudmersive</groupId>
    <artifactId>Cloudmersive.APIClient.Java</artifactId>
    <version>v4.25</version>
</dependency>
</dependencies>

Last but not least, add in the imports and call the function:

// Import classes:
//import com.cloudmersive.client.invoker.ApiClient;
//import com.cloudmersive.client.invoker.ApiException;
//import com.cloudmersive.client.invoker.Configuration;
//import com.cloudmersive.client.invoker.auth.*;
//import com.cloudmersive.client.AudioApi;
ApiClient defaultClient = Configuration.getDefaultApiClient();
// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
//Apikey.setApiKeyPrefix("Token");
AudioApi apiInstance = new AudioApi();
File inputFile = new File("/path/to/inputfile"); // File | Input file to perform the operation on.
String fileUrl = "fileUrl_example"; // String | Optional; URL of an audio file being used for conversion. Use this option for files larger than 2GB.
Integer bitRate = 56; // Integer | Optional; Specify the desired bitrate of the converted audio file in kilobytes per second (kB/s). Value may be between 48 and 1,411. By default, the optimal bitrate will be chosen automatically.
try {
    byte[] result = apiInstance.audioConvertToMp3(inputFile, fileUrl, bitRate);
    System.out.println(result);
} catch (ApiException e) {
    System.err.println("Exception when calling AudioApi#audioConvertToMp3");
    e.printStackTrace();
}