What Audio Formats Does the PS4 Support Via Optical Out?

This article explores the specific audio codecs compatible with the PlayStation 4 digital optical port. It outlines the difference between uncompressed and compressed signals available through this connection. Additionally, the text provides instructions on configuring system settings to match external audio hardware capabilities.

The PlayStation 4 features a digital optical out port, also known as Toslink, which allows users to connect the console directly to soundbars, AV receivers, or DACs. Understanding the supported formats is crucial for achieving the best possible sound quality from your home theater system. The PS4 primarily supports two main categories of audio output through this connection: Linear PCM and Bitstream.

When selecting Linear PCM (LPCM), the PS4 sends uncompressed audio data. However, via the optical connection, the bandwidth is limited compared to HDMI. Consequently, the PS4 restricts optical LPCM output to 2.0 Channel stereo. This is ideal for high-fidelity stereo setups but does not support surround sound in an uncompressed format through this specific port.

For surround sound experiences, users must select Bitstream output. In this mode, the PS4 encodes the audio into compressed formats that fit within the optical bandwidth limits. The supported compressed formats via optical out include Dolby Digital 5.1 and DTS 5.1. This allows for full surround sound engagement in compatible games and media applications that support these codecs.

It is important to note what is not supported. The optical port does not support uncompressed 5.1 or 7.1 LPCM audio. Furthermore, advanced object-based audio formats like Dolby Atmos or DTS:X are not transmitted via optical out. These formats require an HDMI connection to a compatible receiver or soundbar. If your audio equipment supports these newer standards, you should prioritize using the HDMI port for audio output instead.

To configure these settings, navigate to the PS4 home menu and select Settings. From there, choose Sound and Screen followed by Audio Output Settings. Set the Primary Output Port to Digital Out (Optical). Finally, select Audio Format (Priority) and choose either Linear PCM or Bitstream depending on your external audio equipment’s capabilities. Selecting Bitstream is generally recommended for users with surround sound receivers, while PCM is suitable for stereo amplifiers.