Keep one timing baseline
Google’s Streamer sync guidance includes turning off Dialogue enhancement and Volume leveller for comparison. Those processing controls can contribute to audio/video timing issues in the documented setup. This does not mean they are wrong for every listening arrangement.
Choose a familiar spoken passage and keep the output format, receiver mode and programme fixed. Note whether speech is consistently early or late before changing a control.
Compare processing deliberately
Open All settings, Display and sound, Audio options on Google TV Streamer. Follow Google’s current procedure to compare the enhancement and leveling state. Replay the same passage and observe whether the timing changes.
Do not add an app subtitle offset, a receiver audio delay and a Streamer change simultaneously. Those corrections act on different layers, and combined changes can turn one mismatch into another.
Return to the useful listening goal
If the comparison improves timing, evaluate whether dialogue remains intelligible at a comfortable level. If it does not, restore the preferred setting and inspect the remaining documented output-route checks, including equipment format support and the receiver’s own offset.
Provide support with the processing state and direction of delay. This is a controlled documentation-based comparison, not a claim that a particular TV or soundbar has been tested.
Questions answered
Should dialogue enhancement always be disabled?
No. Google suggests disabling it as a comparison for sync issues, not a universal preference.
Should I change every audio-delay control together?
No. Keep a baseline so each change has an interpretable result.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.