AC-3 audiotracks (short for Arc Consistency Algorithm #3) is a type of Dolby Digital audio format, which can be contained in different format containers, such as MP4, and MKV, etc.. However, while most audio devices and multimedia players support AC3 playback, only a handful of them currently support AAC. Here's our guide on how to convert an audio in MP4/MKV from AC3 to AAC, so audio codec incompatibility is a thing of the past, and you are able to enjoy AC3 audio file on devices which don't support AC3, like iTunes, iPad, iPod, QuickTime, PSP, PS3, Zune, Apple TV, etc.
The exceptions are WMV, VBR MP3, AAC, and AC3 Audio. In order to use two of these audio codecs properly, you have to install some additional packages. WMV requires Flip4Mac and AC3 requires A52 codec. The supported containers are AVI and FLV. PCM/ADPCM and Flash Screen Video v2 are not. To be specific, with built in 320+ video and 50+ audio codecs, it can easily convert any video to AC3, AAC, MP3, iPhone Rintone, WMA and also 180+ video formats on Mac OS X (macOS Mojave included) with world's fastest speed for playback with ease. Ac3 codec free download - AC3 Codec, CODEC, VLC Media Player, and many more programs. Play nearly any audio or video file without additional codecs. Manage your music and movie libraries on.
Many devices do not support videos with AC3 audio. In other words, the video is played but with no sound. The reason for this is that those audio codecs have patents and a commercial license must be paid in order to decode them. Thus, some companies choose not to pay and do not support them. On the other hand, no licenses or payments are needed to stream or distribute content in AAC format.
Sample 1: I had this audio issues on a RCA TV. First, I did some research about the supported codecs and containers for the TV. Then, I tested several programs and finally found the perfect combination. This issue with audio codecs is also present in other TV manufacturers like Sony, Samsung, Panasonic or LG. In addition, videos with AC3 audio can't be played in Apple devices like iPad, iPhone, iPod, Apple TV, etc.
Sample 2: Recently, I saw this same issue on an iPad so I decided to post my solution. On the iPad, the VLC app showed the message: 'Codec not supported, VLC could not decode the format a52 (A52 Audio (aka AC3))'.
AC3 audio can be played by VLC, WMV, and common players for DVD. If you cannot play AC3 file directly, try to install an AC-3 filter on your computer or do AC3 to AAC conversion with Dimo Video Converter Ultimate easily as below.
Converting audio in MKV/MP4 from AC3 to AAC seems troublesome. You extract the audio from MKV with an app, convert AC3 to AAC with another app, and add the new AAC audio to the MKV files with a third one. In fact, it's much easier than you may think along with Dimo Video Converter Ultimate.
This AC3 to AAC converter can not only convert AC3 (5.1) to AAC but also offer other useful functions: video/audio conversion, free share videos and audios from computer wirelessly, make ISO, trim your audio files or personalize your videos, etc. In addition to convert AC3 to AAC, it can help you finish audio conversion from WMA to WAV, MKA to OGG, WAV to WMA, FLAC to MP3, MP3 to OGG, etc. effortlessly. Plus, as a video converter as well, this all-in-one app supports video conversion keeping high quality: H.265 to H.264, MKV to MP4 and convert MKV to AVI. All these conversions can keep its original quality. For people who are running on Mac OS (X), please get Dimo Video Converter Ultimate for Mac to convert AC3 to AAC on Mac(OS High Sierra included). Let's start the step-by-step AC3 file to AA3 conversion.
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Step 1: Add MKV/MP4 files with AC3 codec or AC3 audio files
Install the launch the AC3 to AAC Converter. Click the 'Add File' button to import AC3 audio files or videos with AC3 audio tracks into it for converting. Or directly drag the files you want from the computer to the main interface of this program.
Step 2: Set output profile and settings as AAC
You can select the output video format HD MKV, HD MP4 from 'Format > HD Video in the drop-down list 'Select Format' and then you can click 'Settings' to select audio codec as AAC. As the formats supported list shown, you can select devices as output format. It is really convenient to directly convert videos/audios to our various devices if we don't know what format it supports. For instance, I converted MP4 to PS4 Pro and converted MKV to iPad. So if you are not a master of device formats, it is really useful for you!
Note: If you import AC3 audio files in Step 1 or wish to extract AC3 audio from MKV/MP4 video to AAC, you just need to click the format icon at the right side, and choose AAC as an output in Audio tab.
Step 3: Encode AC3 to AAC
Hit the 'Start' button to start converting AC3 to AAC on the main interface of the powerful AC3 to AAC Converter. Quickly you will get your converted AAC audio codec with audio/video sync correctly. Now you can enjoy AAC audio file on your much-loved devices, media servers or players.
This AC3 to AAC Converter will take you breath away by astonishing speed and excellent output quality. In addition, Dimo Video Converter Ultimate branded to provide varied audio extracting solutions from all popular video formats like WMV, AVI, MXF, MOV, MP4, MKV, FLV, MTS, VOB, 3GP, etc. to meet demands of different people.
What's AAC?
AAC is shorted for Advanced Audio Coding, which is a standardized, lossy compression and encoding scheme for digital audio. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC's compression rate has reached 20:1, far better than AC3 and MP3. At present, AAC is compatible with devices like iTunes, iPod, and Sony Walkman and so on.
What's AC3?
AC3 is an audio file developed by Dolby Library to provide surround sound audio. It is composed of up to 6 audio channels, specifically, 5 channels for normal-range speakers (20 - 20,000 Hz) and 1 channel (20 Hz - 120 Hz allotted audio) for the subwoofer driven low-frequency effects. In specific, the surround system provided by Dolby AC3 typically consists of 5 pure frequency domain channels including left front, right front, center, left rear and right rear and 1 ultra-low track, called 5.1 channel.
AC3 file is a standard audio track which is popular today for it takes the most advantage of human auditory masking, which means AC3 gets rid of the voices that human's ears are unable to hear. The process of producing and reverting is digital, so there is nearly no loss of message.
Still have trouble about encoding audio from AC3 to AAC in MP4/MKV? Please feel free to Email Us >>
It's a very great experience to play HD MKV movies on a big TV screen. However, you may fail to play your MKV files on your TV, such as Samsung or LG smart TV. That's because your MKV files are with DTS audio, which is not compatible with LG, Samsung TV or other TVs. If you are facing a problem when you want to play MKV files on your TV, you have to convert your MKV files with DTS audio to MKV files with AC3 audio.
To convert DTS to AC3, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the easiest way for you. It is a professional MKV DTS to AC3 converter. With it, you can convert DTS to AC3 just with a few simple clicks. And it gives you the great output effect, without affecting any audio & video quality of your MKV files.
This step-by-step tutorial below will show you how to convert MKV DTS to AC3 on Windows platform. For Mac uers, the process is almost the same, so don't worry if you are using a Mac computer. Check it out.
Step 1 Import MKV DTS files to this DTS to AC3 converter
To import your MKV DTS files to this program, you can click the Add Files button to browse your computer and select the target files. Another simple way is to directly drag and drop your MKV DTS files from your computer to this app's window. Note that this app supports batch conversion.
Step 2 Set the output format
Since you just need to change DTS audio to AC3 audio, you can still save your video files in MKV format. Select MKV as the output format but set AC3 as its audio codec. You need to click the inverted triangle icon at the top-right corner of the main interface, and choose Video > MKV. Then click the Edit icon beside Same as source, and choose AC-3 as audio codec in the pop-up Setting dialog. Then click Create Custom to build the customized MKV. Then select it as the output format.
Note: This app directly offers users with an optimized format for Samsung TV, LG TV, Sony TV and Panasonic TV. If you want to play MKV files on these TVs, you're advised to directly select the optimized format for your TV. So, you just go to Device > TV instead, and then select your TV type.
Step 3 Edit your videos (optional)
Edit your videos if need, such as crop, trim, rotate, etc. Simply click one of the Edit buttons under the video thumbnail to get the editing tool you want.
Step 4 Convert DTS to AC3
Click the Convert button to start converting DTS to AC-3 audio codec in MKV file. UniConverter (originally Wondershare Video Converter Ultimate) will finish the video conversion in shor time. When it's done, you can get the output files by clicking the Open File Location icon in the Converted tab. Now, just transfer the files to your TV for playback.
AC3 and DTS are both codecs which are commonly used in different sound systems to produce high quality audio. Both these formats make use of different technologies in order to encode data and to improve the overall quality of the digital file. Both of these formats have their own advantages and disadvantages when it comes to the compatibility and specifications, and a comparison is required to be made in order to understand which one is to be used for what purpose so that the best audio results are obtained.
Aspects | AC3 | DTS |
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What is AC3/DTS | AC3 (Audio Coding) is nothing but Dolby Digital Audio Codec, which we commonly use these days on most of the audio devices. The audio compression for this format is lossy and Dolby Digital is the most commonly used version of this format which can house up to six sound channels together. | DTS is an audio codec which is a part of the Laser Disc, DVD and Blu-Ray specifications, which is a consumer version and used mainly at places where the loud sound is required. This format is used for large music systems and theatrical screenings and it is also a common distribution format for DVDs, for a simple reason that it is compatible with most of the supporting equipment. |
History | Originally named as Dolby Stereo Digital till 1994, AC3 was initially called Dolby AC3 surround sound and later came to be known as Dolby Surround digital, which we now call as Dolby Digital. | The work on the development of DTS started in the year 1991, after which it entered the consumer market in 1996. It was suitable for a broad consumer spectrum for multimedia formats and pro audio products. Today DTS is one of the most common audio technology used in DVD players, theatrical screenings, digital media players, high-tech car audio systems and set-top box telecasting as well as Blu-ray discs. |
Compatibility | AC3 is compatible with equipment used for HDTV broadcast, DVD playing, Blu-Ray discs, gaming consoles and home theaters. | DTS is used for decoding DVDs and on film prints, especially those which are used for big screen playing like movie theaters and large size projecting purposes. |
Quality | When it comes to the sound output quality, both are almost similar to hear but technically, DTS is better, clearer and sharper than AC3. DTS is louder than AC3, without compromising on the sound clarity. AC3 uses Dialog Normalization, because of which the decoder decreases its volume by 4dB. DTS, on the other hand, does not use any stabilizing, due to which will produce higher and clearer volume. | |
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