Lip Sync Programs

Lip sync error Causes, solutions CNET A lip sync error occurs when the video of a person speaking on your TV doesnt match up with the sound of them speaking. Ds Max 6 Download Trial'>3Ds Max 6 Download Trial. This can make it look like someone else is doing the voices on your movie, like a badly dubbed foreign language film. Most commonly the video lags behind the audio, but the reverse can also happen. It can be annoying, to say the least the kind of thing that once you notice, you cant forget about easily. Sometimes you can fix the issue, but all too often you cant. There are many causes of lip sync errors, but for the purpose of this article well concentrate on the ones you can potentially do something about those caused by your own AV gear. Peoples perception of the problem also varies. Lip Sync Programs' title='Lip Sync Programs' />Some are sensitive enough to notice lip sync errors of just a few frames small fractions of a second. Other people dont notice the delay until it becomes more severe. Wheres the problemTracking down where the sync issue is coming from is a good first step. If the problem is in the program youre watching, theres not much you can do about it though dont miss the ReceiverSound bar section below. If youre seeing errors only on certain channels, or with certain programs, its probably not the fault of your system. If your sources Blu ray player, cable box, and so on are connected directly to your TV, and every source has a lip sync problem, then the TV is the offender. This may seem obvious, but Ive gotten emails from people angry at everything but their new TV for causing lip sync issues. Paramount Network Announces First Programming Slate, Renews Lip Sync Battle. Are the actors lips out of time with their voices Does it look like someones dubbing voices over the video, badly These are called lipsync errors, and you might. Lip sync short for lip synchronization is a technical term for matching a speaking or singing persons lip movements with prerecorded sung or spoken vocals that. If you have a receiver in the mix, connect a source directly to the TV, and see if the problem disappears. If so, then youve found the culprit the receiver. Figuring out where the problem is coming from makes it a lot easier to see if you can fix it without buying new gear. A TV with Game mode can help test for lip sync error. Sarah TewCNET. The TV If your problem is in the TV, there are a few options to try Game modeinput lag If youre a gamer, youve likely heard of input lag. This is the amount of time it takes for a command entered on a controller a button press, say to show up on the screen. This question is part of the Ask Lifehacker advice column, where Lifehacker staff answers readers burning questions with practical tips. After all, some of the. Home Contact Us About Us Disclaimer. Lip Sync Programs' title='Lip Sync Programs' />The more input lag, the harder it is to make well timed shots in games like first person shooters. Input lag is a symptom of the same problem as lip sync errors the TVs slow processing causes a delay in getting the video to the screen. Some of the slower TVs CNET has measured have input lags of over 1. This doesnt necessarily mean theres a tenth of a second delay between the audio and the video, as the audio goes through some decodingprocessing as well, but that is minor compared to the video. It is possible that multiple frames of video are happening between between the sound and the image. Game mode disables most of this processing, getting the video to your eyeballs sooner. The problem with Game mode is that, on most displays, it means a decrease in picture quality since much of the video processing is turned off. It also might not fix the problem. Its worth testing, however, to see what the cause of the lip sync is. If the TV itself is the issue, you might need to get a sound bar or receiver that can delay the audio. This has a secondary benefit of getting you significantly better sound than the horrible TV speakers. You might even be able to hear dialogue better, as an added bonus. Many receivers, including Sonys STR DN8. Not many sound bars do. Sarah TewCNET. Receivers and sound bars A possible fix Many receivers and some sound bars have lip sync adjustment features, letting you dial in a certain amount of delay to the audio, so it better matches the video. For most people, this will solve the problem. All the sources go into the receiver, the receiver sends the video to the TV, and the audio that comes out of the speakers which are connected to the receiver is delayed enough to match the video. The rare sound bar thats equipped with lip sync delay will generally work in the same way. Of course, this means youd need to buy a receiver or sound bar, but if youre still using the speakers in your TV, youre missing out. Also, check your Blu ray player. There maybe be an option to delay the audio there, which would at least help the issue for BD movies and also help you track down the issue. If the receiver is the problem If youve diagnosed that the receiver is causing the lag, first check that its not doing any video processing on its own. Rarely do you want a receiver performing any video processing anyway let the TV do it, unless your TV is a really low end budget model. While youre in there, it cant hurt to check if there is lip sync delay settings, and theyre already active. One last ditch setup to test is running your sources through your TV, then running the audio output from your TV back to the receiver. There are a whole host of ifs and problems with this, which is why you should only test it last. First and foremost, theres no guarantee the TV will delay the audio correctly. But, if you plugged a source into the TV directly which you should have, to diagnose that the receiver is the issue, then its possible the TV could output the audio correctly. Well, at least timed correctly. Most TVs only output two channel audio via the Audio Return Channel, and theres no guarantee it will pass Dolby Digital from an optical connection either. And that shows the other problem. Dolby Digital, at best. With this method youre going to lose the ability to listen to the high resolution audio formats on Blu ray Dolby True. HD, DTS HD. This isnt a huge loss, as there isnt a massive difference between DD and the high res, but they are an improvement. If you cant fix the issue with the receiver, search online to see if others have had the same issue with your model, or worst case, contact the manufacturer and see if they have advice. Setting sync delay If youve got a receiver, sound bar, or Blu ray player that lets you adjust delay for lip sync errors, the easiest method is to just eyeball it. Try to find a video with something short and percussive, like a music video with drums, or a gunshot. A single hit of a gun or drum is easier to match up than the babbling of an actor. If you want something a little more precise, youll need a test disc. Weve mentioned Disneys excellent World of Wonder test disc before, and theres a test pattern called AV Sync Test with a rotating bar and a beep that makes it easy to dial in the delay. Bottom line Lip sync errors are annoying, distracting, and potentially fatiguing for the brain. Theres no simple solution, though adding a sound bar or a receiver certainly brings additional benefits much improved sound. Got a question for Geoff First, check out all the other articles hes written on topics like why all HDMI cables are the same, LED LCD vs. D, and more. Still have a questionSend him an e mail He wont tell you what TV to buy, but he might use your letter in a future article. You can also send him a message on Twitter Tech. Writer. Geoff or Google. How to Fix an Incorrect AudioVideo Sync Setting and Save it Permanently using AvidemuxAudio to video synchronization is an extremely important aspect of a multimedia file, because when playing, multimedia players rely on it for properly synchronizing the audio and the video tracks. If the synchronization value is incorrect, then the audio or the video is going to be played early or with a delay, compared to the other, which is commonly known as lip sync errors, and it jeopardizes all the excitement, obviously. For instance, while watching a movie, if you have ever come across situations like gunshot firing sounds coming out before its video scene is displayed, then that is due to an improper audio to video sync. This is a pretty common issue in multimedia files and there are many reasons behind its existence, but for keeping the article clear and simple so that anyone can understand its context without having to go through boring technical details, I will not mention them. Sometimes syncing issues are also caused by audio hardware devices sound cards, amplifiers or even buggy headphones etc. But this method that Im going to show you, only works if the sync problem lies with the multimedia file. If its hardware based, you should be looking elsewhere. In any case, the good news is, depending on the OS platform that you are using, there are powerful software multimedia players VLC, KMPlayer, MPLayer etc that give you the ability to manually adjust the sync video or audio setting, thus you can enjoy the multimedia files without such issues. The problem with that method however is that it only saves the sync setting temporarily, and it will be lost the next time you play it. Therefore, the most ideal solution is to use a video syncing synchronization software to fix it. And the good news is that you dont have to buy a premium software utility, because thanks to a great and free open source tool called Avidemux, you can save the audio video out of sync setting permanently for a lots of video audio codecs HD, Blu ray or even 4. K videos and container formats MP4, MKV, FLV, MPEG, AVI etc. Avidemu is actually one of the best free audio and video synchronization software that you can use its originally intended purpose is actually to act as a simple video editing encoding software which comes with in built filters etc. Avidemux also supports multiple operating systems, therefore you dont have to be only a Windows user to use it either. So if youre having lip sync errors in one of your multimedia files, then you can try the below Steps for a possible fix. While the results are not always guaranteed, Avidemux has a good track record. If this method fails, then Ive added another method that guarantees results in most situations at the end of the article as well. Update 2. 01. 7 0. Yes its been more than four years since I originally wrote this post yes, even so, I update it from time to time, but the instructions still work. I just added this update just to give some confidence to the readers. Step 1 First of all, go to this page, download the package and install it it has pre built packages for Windows, Mac OS X and GNULinux. Step 2 Now open Avidemux program and load the troublesome multimedia file into it. Step 3 Before continuing, under the Video Output and Audio Output options, make sure it says Copy. Also make sure to enable the option called Shift disabled by default, as it is the option that lets you change the audiovideo sync setting shown below. Any value that you enter here Shift should be in milliseconds 1. Step 4 Now, if you know what the correct audiovideo sync value is then you can skip this and go directly into the end of Step 5. If not, click on the Play button on Avidemux window, so we can observe and see whether the audio comes before or after the video scenes. How to Sync Audio and Video Correctly If the audio comes before The rule of the thumb is that, if the audio is played before the video, then that means we have to add time to it thus delaying it, so the video track can catch up with the audio track. This is done by entering a positive sync value say 2. Shift box. If the audio comes after If it comes few seconds or milliseconds after the video scene is displayed, then it is already delayed, therefore, we have to remove time from it, thus making it being played early. One cannot give you the exact audiovideo sync value that is needed as it is something that you will have to guess by observing the video playback. However, in my experience, the usual range is 2. But there can be occasions where it requires one to enter higher values. Anyhow, unlike above, this time we have to add a negative value as the sync value, in order to make it load earlier if you enter 2. Step 5 Lets assume that the file you loaded had an audio track that was being played with a delay. Then to make it play early, we have to enter a negative value. And unless the sync was so big that you could easily tell that the audio came few seconds after the video, I recommend that you start by entering a small negative say a 1. If it fixes the lip sync a little, then add another 1. Then carry it on until you arrive at the optimal audiovideo sync value. However, before every time you apply a different sync setting, first make sure to Pause the playback, then add the new value and resume playback. Otherwise Avidemux will not apply that setting to the playback. Note This is just an example of course and depending on your multimedia file, you will have to figure out whether to use a negative or a positive value, but the procedure is just the same. Step 6 Once you are satisfied with your new audiovideo sync, now all you have to do is to save the changes. But before doing so, just make sure that under the Output Format option, you have selected the proper output format. For example, if the source file was an AVI file, then make sure to select AVI Muxer. If it was FLV, then choose FLV Muxer etc. Cvv2 Software here. Avidemux doesnt have like a huge list there, but it supports saving into AVI, FLV, MP4, MPEG TS, MKV etc. If your input file has a different format than listed there, then you can choose MKV Muxer as it supports storing a huge number of different audio and video codecs. Note Please be aware that, if you put audiovideo that were previously stored in an AVI file into a MKV container, then sure MKV will store them without any issues. But most commercial hardware devices i. Pad for example will struggle to play it afterwards. This does not concern the computer users as most popular players support playing the awesome MKV format. Update Sometimes while trying to fix a MP4 file, though you might be able to successfully fix it and play it in Avidemux, the corrected sync value might simply be lost, after saving it into a new MP4. If this occurs, then I advice you to try selecting MP4v. Muxer rather than using the MP4 Muxer under Output Format. I have been able to successfully save the corrected sync settings of certain MP4 files, by simply making that change aloneUpdate 2 If that doesnt work, then try changing the audio output from copy to MP3 Lame. Yes this will re encode the audio file, but it shouldnt take a long time since encoding an audio track isnt as difficult or time consuming as encoding a video file.