Sony has released a firmware update for its WH-1000XM5 wireless headphones that enables a low-latency gaming mode, addressing long-standing synchronization issues for mobile and PC gamers. The update, distributed via the Sony Headphones Connect app, integrates the LC3 audio codec to reduce the delay between on-screen action and audio output.
How the Low-Latency Update Works
The update centers on the implementation of the LC3 (Low Complexity Communication Codec), which is part of the Bluetooth LE Audio standard. According to Sony’s official release notes, this mode significantly lowers the audio-to-video latency compared to the standard SBC or AAC codecs typically used by these headphones.
While the WH-1000XM5 are industry leaders in active noise cancellation, they previously relied on traditional Bluetooth profiles that often resulted in a perceptible lag during competitive gaming or fast-paced video playback. By shifting to the LC3 codec, the headphones can transmit data more efficiently, keeping audio cues in sync with visual inputs.
Compatibility and Requirements
To access this feature, users must ensure their playback device supports Bluetooth LE Audio. As noted by Android Authority, the effectiveness of the update depends heavily on the hardware of the connected smartphone or PC.
- App Requirement: The update must be installed via the Sony Headphones Connect application on iOS or Android.
- Source Hardware: The device transmitting the audio must also support the LC3 codec. Many older smartphones lack the necessary Bluetooth 5.2 or higher hardware to utilize this feature.
- Activation: Once the firmware is updated to version 2.2.1 or higher, users can toggle the "Priority on Stable Connection" setting to prioritize lower latency within the app.
Why Latency Matters for Wireless Audio
Bluetooth audio inherently introduces a delay because the source device must compress, transmit, and then decompress the audio signal. In standard listening scenarios, this delay is imperceptible. However, in gaming, where timing is critical, a delay of 200 milliseconds or more creates a disconnect between the player’s actions and the game’s sound effects.
Prior to this update, users often had to rely on wired connections via the 3.5mm headphone jack to avoid this lag. This firmware shift allows for a wireless experience that mimics the responsiveness of a wired connection, provided the user’s hardware supports the newer Bluetooth LE standards.
Frequently Asked Questions
Does this update apply to the older WH-1000XM4?
No, as of the current release, this firmware update is specific to the WH-1000XM5 model.
Will I notice a difference in sound quality?
The LC3 codec is designed to provide high-quality audio at lower bitrates. While it is optimized for efficiency and latency, most users will find the audio fidelity remains consistent with previous standards.
What if my phone doesn’t support LE Audio?
If your device does not support Bluetooth LE Audio, the headphones will default to the standard codec available, and you will not experience the reduction in latency provided by this update.