(often encoded within E-AC-3 for streaming compatibility).

Best for wrapping streams into Matroska (.mkv) files.

Example FFmpeg command for a 5.1 test:

Dolby Digital Plus, also known as E-AC-3, is an extension of the original Dolby Digital (AC-3) format. It was developed to provide even higher audio quality, supporting up to 7.1 channels of audio. This format is widely used in various applications, including:

Before understanding the test file, we must understand the codec. Launched in 2004 as an extension to the original Dolby Digital (AC-3), —formally known as E-AC-3—was designed for the era of bandwidth efficiency.

: Detailed Reddit threads like this one on r/hometheater offer Google Drive folders containing repacked test files for almost every format, including: Dolby Digital Plus 5.1 (E-AC-3) Dolby Digital Plus 7.1 (E-AC-3)

: Offers a comprehensive list of E-AC3 7.1 and EAC3-JOC (Atmos) test clips specifically for media center testing. Reddit's r/HTPC