레이턴시는 밀리초(ms)로 측정합니다. 20ms 미만은 거의 즉각적이고, 20~50ms는 많은 용도에서 양호하며, 50~100ms는 체감되고, 100ms 이상은 게임·모니터링·통화·립싱크에 방해가 될 수 있습니다.
Usually feels immediate for playing, monitoring and competitive use.
Often acceptable for casual gaming, calls and general listening.
Timing starts to feel soft; speech and video may look slightly detached.
Echo, late feedback and obvious lip-sync errors are common.
오디오 레이턴시의 실제 의미
소리를 캡처하고 처리하고 전송하고 재생하는 모든 단계에서 지연이 더해집니다. 출력 지연은 영상과 게임에, 왕복 지연은 마이크 모니터링에 중요합니다.
Time from a device or app sending audio until your headphones or speakers reproduce it.
Time from a microphone or instrument entering the system until software receives it.
Input delay plus processing and output delay—the number performers usually feel.
Difference between the visible event and the sound; test it with the audio sync tool.
허용 가능한 오디오 레이턴시는 얼마일까?
모든 용도에 맞는 하나의 기준은 없습니다. 일반 재생은 버퍼를 허용하지만 연주와 실시간 반응은 더 낮은 지연이 필요합니다.
Aim below 20 ms round trip; many performers prefer roughly 10 ms or less.
Lower is better; below 30–40 ms audio output helps cues feel connected.
Lip sync is usually comfortable when offset stays within roughly 40–60 ms.
Small local device delay is fine, but network delay adds to the conversation gap.
오디오 지연이 생기는 원인
무선 코덱, 오디오 버퍼, 효과, 운영체제 믹싱, TV 영상 처리, 네트워크에서 지연이 누적됩니다.
Bluetooth encoding, radio transmission and decoding add buffering.
Larger buffers prevent glitches but increase delay.
Noise removal, spatial audio, EQ, plugins and resampling need time.
TV motion smoothing and video pipelines can move pictures later than sound.
오디오 레이턴시 줄이는 방법
한 번에 한 요소만 바꾸고 다시 측정하세요. 끊김을 늘리지 않으면서 효과가 있는 설정을 찾을 수 있습니다.
- Measure a baseline
Run the main audio latency test with the same device, browser and connection you normally use.
- Use a wired path
For recording or rhythm-sensitive work, wired headphones and a direct audio interface are the most reliable shortcut.
- Lower the buffer carefully
Reduce buffer size in the DAW or audio app until delay improves without crackles.
- Disable unnecessary processing
Temporarily turn off spatial audio, enhancement suites, noise suppression and heavy plugins.
- Match the media path
Use game/low-latency mode on earbuds or TVs and avoid routing audio through extra devices.
- Retest and record the result
Compare the new measurement with the baseline instead of judging from memory.
정확하게 측정하는 방법
브라우저 테스트는 실용적인 추정치입니다. 같은 환경에서 여러 번 측정하고 중앙값을 사용하세요.
Use at least five attempts and ignore accidental taps or obvious outliers.
Do not switch codec, output device, browser tab or enhancement settings between runs.
Measure the TV, console, earbuds or interface exactly as you normally connect it.
Audio hardware latency and internet latency are different problems.
현재 환경 측정
장치나 설정을 바꾸기 전에 반복 가능한 기준값을 만드세요.
오디오 레이턴시 FAQ
Is 100 ms audio latency bad?
For passive listening it may be tolerable, but 100 ms is clearly noticeable for gaming, live monitoring, calls and lip sync.
Can Bluetooth audio have zero latency?
No practical Bluetooth path is truly zero-latency. Low-latency modes and newer codecs can reduce delay, but the phone, codec and earbuds all matter.
Why do I hear my voice late in headphones?
You are hearing round-trip latency: microphone input, software processing and headphone output delay combined.
Does a faster internet connection reduce audio latency?
It can reduce network delay in calls or cloud gaming, but it does not fix local Bluetooth, buffer or device-processing latency.
What is the difference between latency and lag?
They are often used interchangeably. Latency is the measurable delay; lag is the user-visible or audible effect of that delay.