IC For Lip Sync Correction

[SingSing]

At last! Lip sync has been a problem with digital TV since the standards -- even for the DVD. TPA5050 digital audio delay IC - a programmable digital audio delay is absolutely timed right because of the release of version 1.3 of the High-Definition Multimedia Interface (HDMI) http://www.hdmi.org/resourcecenter/index.asp which allows for lip sync control. Interfacing the standard -- which, with over 400 adopters in the consumer equipment world, has become the de facto standard.

See : http://www.analogzone.com/avp_0710.htm

[BJ_M]

audio delay is already built into many preamps / receivers and has been for years

[SingSing]

Digital delay currently used in the devices are all after tough.

This new type of devices is based on : "Lip Sync: Because consumer electronics devices are using increasingly complex digital signal processing to enhance the clarity and detail of the content, synchronization of video and audio in user devices has become a greater challenge and could potentially require complex end-user adjustments. HDMI 1.3 incorporates an automatic video/audio synching capability that allows devices to perform this synchronization automatically with total accuracy."

[BJ_M]

doesnt mater if an afterthought or not -- delay is delay .. in the studio , throughout transmission and in a multiplex stream -- video and or audio delay will happen .....

the press release above is really just marketing hype for something that has been around for eons ...

so called automatic resync is not always a good thing as the video display itself will have video delay -- in some cases severe ... and the audio preamp stages dont know how much --