AV Toolbox AP-411 Lip Sync Corrector

AV Toolbox AP-411 Lip Sync Corrector

AV Toolbox AP-411 Lip Sync Corrector

B&H # AVAP411 MFR # AP-411
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AV Toolbox AP-411 Lip Sync Corrector


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Product Highlights

  • Syncs Audio and Video
  • Up to 300ms Delay
  • 48kHz Sample Rate
  • Stereo RCA Connectors
  • AC Adapter Included
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AV Toolbox AP-411 overview

  • 1Description

The AP-411 Lip Sync Corrector from AV Toolbox is a compact tool that allows you to correct audio/video timing mismatches that create a loss of sync in program content. Typically, a loss of sync is cause by video arriving after audio, so the AP-411 provides up to 300 milliseconds of delay for the audio component to restore audio/video sync.

The device has stereo RCA input and output connectors, which can accept and output up to 2Vrms audio levels. It supports a 48kHz sample rate, and requires only 5VDC of power to operate. An AC adapter is provided.

Compact and lightweight design
Allows you to delay an audio signal by up to 300ms to restore audio/video sync to program content
Stereo RCA input and output connectors for wide compatibility
Accepts and outputs audio levels up to 2Vrms, and supports 48kHz sample rates
Requires only 5VDC of power to operate, and an AC adapter is included
In the Box
AV Toolbox AP-411 Lip Sync Corrector
  • AC Power Adapter
  • RCA Stereo Audio Cable (3' / 0.9m)
  • 1-Year Limited Warranty
  • Table of Contents
    • 1Description

    AV Toolbox AP-411 specs

    Audio Inputs 1 x L/R stereo RCA jack
    Audio Outputs 1 x L/R stereo RCA jack
    Delay Up to 300 ms (selectable)
    S/N Ratio > 80 dB
    Crosstalk < -70 dB
    THD + N < 0.01%
    Audio Input Level 2 Vrms maximum (L/R)
    Audio Output Level 2 Vrms maximum (L/R)
    Audio Sampling Rate 48 kHz
    Audio Bandwidth 20 Hz - 20 kHz
    Operating Temperature 32 to 104°F (0 to 40°C)
    Operating Humidity 10 - 90% (non-condensing)
    Storage Temperature -4 to 140°F (-20 to 60°C)
    Storage Humidity 10 - 90% (non-condensing)
    Power Requirements 5 VDC at 1 A (0.5 W consumption)
    Power Connector 1 x Power input jack
    Regulations Audio Leveler: FCC, CE, RoHS
    Power Adapter: UL, CUL, CE, PSE, GS, RoHS
    Dimensions (WxHxD) 1.65 x 0.87 x 1.6" (42 x 22 x 41 mm)
    Weight 1.13 oz (32 g)
    Packaging Info
    Package Weight 0.45 lb
    Box Dimensions (LxWxH) 5.9 x 4.8 x 2.3"

    AV Toolbox AP-411 reviews

    AP-411 Lip Sync Corrector is rated 4.9 out of 5 by 7.
    Rated 5 out of 5 by from Does exactly what it should well! This is a gadget built for a very specific purpose and seems a little expensive compared to something like an Alesis Nanoverb which can do so much more for less. However, this little box solves a huge issue, and that is matching audio delay to video delay. We use 3 of them to cover all 6 channels in a 5.1 editing suite. Our video goes from the edit station to the 4K monitor via HDMI. The audio goes analog from the sound card to a 5.1 amp. As is typical with all HDTV and UHD monitors, there is a small (150 millisec) delay of the picture in the monitor due to the time it takes to process the signal and display it. As a result, the audio would come out the speakers 150 ms before the picture, thus creating a terrible loss of sync that's really annoying. This little gadget allows delay to be dialed in to the audio in 50 ms increments, up to 300 ms. We set all 3 to 150 ms and problem solved. They have no power switch so we plug all the wall warts into an extension cord plugged into the switched outlet on the back of the amp and they come on and off with the power button on the amp. My only complaint is that they are so small and light, what the heck do you do with them? We velcroed them into the back of the rack.
    Date published: 2014-11-05
    Rated 5 out of 5 by from Great Product Just plug it in and it works. Has RCA in/out which is what you want for matching to legacy audio gear. Cannot find any fault with quality of audio conversions. This is a quality unit. The delay setting is somewhat difficult to rotate with fingers. A small screwdriver solves that problem and they have a slot for that. Terrific value. Continuously variable delay going up to 500 ms might be nice but then they couldn't offer it at this great price. I am having no problems with the fixed settings and 100 ms cured our lip-sinc issue.
    Date published: 2015-08-12
    Rated 5 out of 5 by from Fixed the sync issue on consumer Sharp HDTV Using Premiere Pro through a Matrox I/O box and had audio sync issues a consumer HDTV (40 Sharp montior). Dropped this in between the Matrox and my audio board and was able to adjust the audio to be spot-on.
    Date published: 2016-03-28
    Rated 5 out of 5 by from AP-411 Lip Sync Corrector by AV Toolbox Did the trick. We use DVI to ethernet converters to get the video from 4 cameras to the video booth. It caused a delay in the video signal. The Lip Sync Corrector allowed us to get everything back in line.
    Date published: 2012-10-11
    Rated 5 out of 5 by from Works great, easy to use I use this as a delay for TV and webcast production. It's easy to use and has a clear signal. Wish it had XLR connectors, but not a big deal.
    Date published: 2012-06-04
    Rated 4 out of 5 by from Small but powerful We use it to slip the audio for our skype feeds for webcasts. Works Great!
    Date published: 2014-05-08
    Rated 5 out of 5 by from 2nd one, both work flawlessly! easy solution for a nagging issue
    Date published: 2016-06-06
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