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AV Toolbox AP-411 Lip Sync Corrector

BH #AVAP411 • MFR #AP-411
AV Toolbox
AV Toolbox AP-411 Lip Sync Corrector
Key Features
  • Syncs Audio and Video
  • Up to 300ms Delay
  • 48kHz Sample Rate
  • Stereo RCA Connectors
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.
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AV Toolbox AP-411 Overview

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

AV Toolbox AP-411 Specs

Audio Inputs1 x L/R stereo RCA jack
Audio Outputs1 x L/R stereo RCA jack
DelayUp to 300 ms (selectable)
S/N Ratio> 80 dB
Crosstalk< -70 dB
THD + N< 0.01%
Audio Input Level2 Vrms maximum (L/R)
Audio Output Level2 Vrms maximum (L/R)
Audio Sampling Rate48 kHz
Audio Bandwidth20 Hz - 20 kHz
Operating Temperature 32 to 104°F (0 to 40°C)
Operating Humidity10 - 90% (non-condensing)
Storage Temperature-4 to 140°F (-20 to 60°C)
Storage Humidity10 - 90% (non-condensing)
Power Requirements5 VDC at 1 A (0.5 W consumption)
Power Connector1 x Power input jack
RegulationsAudio 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)
Weight1.13 oz (32 g)
Packaging Info
Package Weight0.7 lb
Box Dimensions (LxWxH)5.9 x 4.8 x 2.3"

AV Toolbox AP-411 Reviews

Great product and great service

By Howard
Rated 5 out of 5
Date: 2019-09-01

This item brought my new Roku TV into synch with my old audio system at a delay of 135ms. It is a wonderful product. The service was outstanding and the price was the lowest anywhere. Thank you!

Fixed the sync issue on consumer Sharp HDTV

By e
Rated 5 out of 5
Date: 2016-03-28

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.

Great Product

By JHzlwd
Rated 5 out of 5
Date: 2015-08-12

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.

Does exactly what it should well!

By Jonathan
Rated 5 out of 5
Date: 2014-11-05

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.

Small but powerful

By Anonymous
Rated 4 out of 5
Date: 2014-05-08

We use it to slip the audio for our skype feeds for webcasts. Works Great!

AP-411 Lip Sync Corrector by AV Toolbox

By The Chapel
Rated 5 out of 5
Date: 2012-10-11

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.

Echo

By Michael
Rated 3 out of 5
Date: 2019-08-14

This device got the video back in sync with the audio but because of the 300 ms sync there was a noticeable echo in what was coming out of the speakers in the Hall we use.

2nd one, both work flawlessly!

By Anonymous
Rated 5 out of 5
Date: 2016-06-06

easy solution for a nagging issue

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YOUR RECENTLY VIEWED ITEMS

If the delay is over 300 msec can the output of ...

If the delay is over 300 msec can the output of the left channel be looped back to the input of the right channel( or Vice versa) to give an increase of approximately twice as much delay for a monaural application?
Asked by: Paul
If you do that it with the AV Toolbox AP-411 Lip Sync Corrector. It will very likely cause what are called multiple repeats. Which would be the signal feeding back on itself. The time between the repeats will be determined by the setting you use.
Answered by: John
Date published: 2019-06-18

Is the dial a full spectrum dial or increments? ...

Is the dial a full spectrum dial or increments? In other words, can it be set to 175 ms for example?
Asked by: Nidal
thank you for your email. The dial is full spectrum, the numbered settings are there as a guide.
Answered by: Anthony
Date published: 2019-05-22
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