5replies
bluetooth headphones lag behind the tv, lips dont match
Bluetooth adds delay, often 150 to 300 ms on basic codecs. Turn on the TV's audio delay or lip sync setting, or use a low-latency transmitter that…
Min-Seok Kim
Audio Codec Tester at Sound Test
Min-Seok Kim is the Audio Codec Tester on the Sound Tester Audio Team. Evaluates high-fidelity wireless audio latency, spatial tracking codecs, and digital sound output drivers.
Min-Seok Kim is the Audio Codec Tester on the Sound Tester Audio Team. Evaluates high-fidelity wireless audio latency, spatial tracking codecs, and digital sound output drivers. Connects with global consumer electronics engineers on LinkedIn. Based in South Korea. On Sound Tester he answers Bluetooth delay, codec and wireless headphone discussions, including lip sync problems on TVs.
- Experience
- 5+ years
- Answers On Sound Test
- 8
What Min-Seok Works On
Wireless latencyBluetooth codecsdigital output drivers
Sound Tester Tools Min-Seok Looks After
Sound TestQuick left, right and stereo check for any speakers or headphonesFree · Open tool Headphone TestLeft and right channel, balance and driver checkFree · Open tool
Discussions Answered By Min-Seok
6replies
bluetooth headphones sound terrible on teams calls
Windows switches Bluetooth headsets to Hands-Free mode when the mic is on, which cuts quality. Use a separate microphone or pick the Stereo output…
4replies
car bluetooth music keeps stuttering
Stutter on streaming but not calls usually points to the codec or a weak data link. Set the phone to SBC or AAC, turn off wireless charging heat and…
2replies
bluetooth earbuds connected but no sound plays
If the earbuds say connected but sound plays from the phone, the media audio profile is off. Turn on Media audio for the device and re-pair.
4replies
airpods keep disconnecting from my windows laptop
Frequent drops on Windows usually come from the Bluetooth driver or power saving. Update the driver, turn off power saving for the adapter and…
3replies
bluetooth speaker cuts out every few seconds
Short dropouts at close range usually mean interference or a phone battery saver. Turn off battery optimisation for the music app and re-pair the…
2replies
cant use two bluetooth headphones at the same time
Two sets of headphones need dual audio support in the phone or a transmitter that supports two receivers. Many phones allow it under Bluetooth…
3replies
bluetooth headphones drop out when phone is in my back pocket
Bluetooth signals are weak through the body, so a back pocket can block the link. Move the phone to the front, the opposite side from the headphone…
The Audio Team Behind These Answers
Brandon VanceAudio & Acoustic Performance Lead
Xavier CruzFrequency Sweep Specialist
Diana ChenHearing Test Architect
Alistair CrossHeadphone Benchmark Lead
Imogen BlakeBinaural Beats Engineer
Callum SterlingSurround Sound Auditor
Gemma GallagherTone Generator Validator
Harvey FinchSpectrum Analyzer LeadEach answer is written by the specialist closest to the topic and checked by a second team member. How we verify answers