আপনার অডিও ও ভিডিও কি সিঙ্কে?
Detect audio-visual desynchronization by measuring the perceived offset between a visual flash and its paired sound. Identify lip-sync issues in your setup — all processed locally in your browser.
This test presents simultaneous audio and visual stimuli and asks you to judge their synchronization. By adjusting the offset until they appear synchronized, it measures the audio-visual delay in your system pipeline.
Humans can detect audio-visual desync as small as 45ms when audio leads video, but tolerate up to 125ms when audio lags behind video.
আপনার ফলাফলের অর্থ কী?
| Result | Range | Meaning |
|---|---|---|
| ভালো | Offset within ±30ms | Your audio and video are well synchronized. This offset is imperceptible to virtually all users during normal content playback. |
| সতর্কতা | Offset between 30–80ms | Slight desynchronization detected. Most users will not notice this during general viewing, but it may be perceptible during fast-paced content or when closely watching lip movements. |
| খারাপ | Offset greater than 80ms | Noticeable audio-visual desync. This will be visible during video calls, movies, and gaming. Common causes include Bluetooth audio latency, HDMI audio delay, or software processing overhead. |
সাধারণ সমস্যা এবং সমাধান
Audio consistently arrives after the visual flash
Bluetooth audio devices add 100–300ms of latency. Switch to wired headphones or speakers for sync-critical tasks. If using HDMI, check your TV or monitor's audio delay settings and enable 'Game Mode' to reduce processing latency.
Audio arrives before the visual element
This can occur when display processing adds latency (common on TVs with heavy post-processing). Enable Game Mode on your display to minimize input lag, or add an audio delay offset in your media player settings.