Handling MPEG audio metadata Leave feedback

MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is a coding format for digital audio. Originally defined as the third audio format of the MPEG-1 standard, it was retained and further extended — defining additional bitrates and support for more audio channels — as the third audio format of the subsequent MPEG-2 standard. The GroupDocs.Metadata API allows reading some common MPEG audio properties from MP3 files.

Note

For more information on the MP3 and MPEG standards please check the following articles:

• https://en.wikipedia.org/wiki/MP3
• https://en.wikipedia.org/wiki/Moving_Picture_Experts_Group

The following steps demonstrate how to read MPEG audio metadata from an MP3 file.

1. Load an MP3 file
2. Get the root metadata package
3. Use the MP3RootPackage.getMpegAudioPackagemethod to read the metadata values

advanced_usage.managing_metadata_for_specific_formats.audio.mp3.MP3ReadMpegAudioMetadata

try (Metadata metadata = new Metadata(Constants.MP3WithID3V2)) {
	MP3RootPackage root = metadata.getRootPackageGeneric();

	System.out.println(root.getMpegAudioPackage().getBitrate());
	System.out.println(root.getMpegAudioPackage().getChannelMode());
	System.out.println(root.getMpegAudioPackage().getEmphasis());
	System.out.println(root.getMpegAudioPackage().getFrequency());
	System.out.println(root.getMpegAudioPackage().getHeaderPosition());
	System.out.println(root.getMpegAudioPackage().getLayer());

	// ...
}

You may easily run the code above and see the feature in action in our GitHub examples:

• GroupDocs.Metadata for .NET examples

• GroupDocs.Metadata for Java examples

Along with full featured Java library we provide simple, but powerful free Apps.

You are welcome to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images and more with our free online Free Online Document Metadata Viewing and Editing App.