Help us keep the list up to date and submit new video software here.

Our website is made possible by displaying online advertisements to our visitors. Consider supporting us by disable your adblocker or try DVDFab and copy,convert Blu-ray and DVDs! :)

Software Home >



eac3to is able to convert E-AC3, TrueHD, PCM and DTS-HD audio tracks to AC3, DTS or FLAC. Converts E-AC3, TrueHD, PCM, DTS-HD and FLAC tracks to AC3/DTS/FLAC. Removes Dialog Normalization from AC3, E-AC3, DTS and TrueHD tracks. Extracts AC3 frames from Blu-Ray AC3/TrueHD tracks. Extracts DTS core from DTS-HD tracks. Can remux the video track of a EVO/VOB source to Matroska(mkv). Command line tool but GUI(UsEac3to) also available. Requires external audio decoders.

Version:3.34 / 3.34 with UsEac3to GUI 1.2.9
Released:Jun 12,2018
File size:5.1MB
8 votes

Rate it


eac3to screenshot
Click to enlarge screenshot

eac3to screenshot 2
Click to enlarge screenshot
Latest version

3.34 / 3.34 with UsEac3to GUI 1.2.9 (June 12, 2018)


Visit developer's site

Download eac3to 3.34  [5.1MB]  [Win]  [Portable]

Download Beta, Portable and other versions

Download eac3to 3.34 with UsEac3to GUI 1.2.9 Portable  [5.7MB]  [Win]  [Portable]

Download old versions

Download eac3to old versions

Supported operating systems




More information and other downloads

Download UsEac3to GUI here

Download Eac3to and More GUI here, main eac3to gui. The GUI may be reported as a virus in some antivirus programs but it is NOT.

Download HD-DVD/Blu-Ray Stream Extractor here, extract streams using eac3to. Place it in the same folder as the eac3to.exe.

Version history / Release notes / Changelog

UsEac3to New version 1.2.9

Some bug corrected and improved 'A/V Recode' to make easy filter and recode audio with ffmpeg.

Some samples of audio filters:

Downmix: -af "pan=stereo|FL<FC+0.70*FL+0.30*SL|FR<FC+0.70*FR+0.30*SR" [or other]
Resample: -af aresample=48000
Speedup: -af atempo=1.042708 [23.976->25], 1.041667 [24->25], 1.001 [23.976->24]
Slowdown: -af atempo=0.959041 [25->23.976], 0.96 [25->24], 0.999001 [24->23.976]
Delay: -af adelay=1500|0|500|0|500|500 [one delay for each channel]
Trim: -filter_complex "[0]atrim=2:8[a];[0]atrim=12:18[b];[a][b]concat=n=2:v=0:a=1"
And a sample of use in the image:

1) Load a mp4 in UsEac3to, ignore the non supported message.
2) Click at 'MkvExtract/INF' and ffmpeg inform:
3) The mp4 tracklist. We need recode the aac 44.1 KHz to 48 KHz and half volume.
4) We can extract the aac track, but is not necesary and close the dialog.
5) We put the ffmpeg filter: -af "volume=0.5, aresample=48000"
6) Click at 'A/V Recode' to open the dialog.
7) Select track 1 in 'map:X' or other like we see in 3)
8) Select 'Add to DEC' to add the filter.
9) Select ENCODER and quality.
10) 'Run' or 'EnQueue'

* fixed: "min/maxPlayListRuntime" worked for listing, but not processing

* fixed a couple of HEVC bitstream bugs
* added new parameter "-minPlayListRuntime=0:15:00"
* added new parameter "-maxPlayListRuntime=4:00:00"
* added support for ".264" and ".265" file extensions

View full changelog

All features

- can show information about audio, video, VOB/EVO/(M2)TS and MKV files
- can decode and encode various audio formats
- can remove dialog normalization from AC3, E-AC3, DTS and TrueHD tracks
- can extract AC3 stream from Blu-Ray TrueHD/AC3 tracks
- can extract TrueHD stream from Blu-Ray TrueHD/AC3 tracks
- can extract DTS core from DTS-HD tracks
- can remove DTS zero padding and repair outdated DTS-ES headers
- can apply positive or negative audio delays
- can reduce bitdepth of decoded audio data by using TPDF dithering
- can resample decoded audio data (using SSRC or r8brain)
- can apply/reverse PAL speedup on decoded audio data (SSRC/r8brain)
- can demux video / audio tracks of EVO/VOB/(M2)TS and MKV sources
- can list available titles of Blu-Ray and HD DVD discs
- can extract Blu-Ray and HD DVD chapter information and subtitles
- can mux MPEG2, VC-1 and h264 video tracks to Matroska
- can remove pulldown flags from MPEG2, VC-1 and h264 video tracks

eac3to sourcefile[+sourcefile2] [trackno:] [destfile|stdout] [-options]

eac3to source.pcm destination.flac
eac3to destination.flac destination.ac3
eac3to source.evo 1: chapters.txt 2: video.mkv 3: audio.flac 5: subtitle.sup
eac3to feature_1.evo+feature_2.evo movie.mkv
eac3to blurayMovieFolder movie.mkv

-448 use e.g. "192", "448" or "640" kbps for AC3 encoding
-768 use "768" or "1536" kbps for DTS encoding
-core extract the DTS core of a DTS-HD track
+/-100ms apply a positive or negative audio delay
+/-3dB apply a positive or negative audio gain (volume change)
-0,1,2,3,4,5 remap the channels to the specified order
-edit=0:00:00,0ms loops or removes audio data at the specified runtime
-silence/-loop forces usage of silence (or looping) for audio edits
-down6 downmix 7 or 8 channels to 6 channels
-down2 downmix multi channel audio to stereo (Dolby Pro Logic II)
-phaseShift shift phase (when doing stereo downmixing, see "down2")
-mixlfe mix LFE in (when doing stereo downmixing, see "down2")
-down16 downconvert decoded audio data to 14..23 bit
-slowdown convert 25.000 and 24.000 content to 23.976 fps
-speedup convert 23.976 and 24.000 content to 25.000 fps
-23.976/... define source fps to be "23.976", "24.000", "25.000", ...
-changeTo24.000 change source fps to "23.976", "24.000", "25.000", ...
-resampleTo48000 resample audio to "44100", "48000" or "96000" Hz
-r8brain use r8brain resampler instead of SSRC
-quality=0.50 Nero AAC encoding quality (0.00 = lowest; 1.00 = highest)
-8 define PCM file to be "1".."8" channels
-16 define PCM file to be "16" or "24" bit
-little define PCM file to be "little" or "big" endian
-96000 define PCM file to be 44100, 48000, 96000 or 192000 Hz
-override forcefully overrides PCM auto detection with manual values
-sonic/nero/... force the use of a specific decoder (not recommended)
-keepDialnorm disables dialog normalization removal (not recommended)
-decodeHdcd decodes HDCD source track (usually 16 -> 20 bit)
-demux demuxes 1st video track and all audio and subtitle tracks
-stripPulldown strips the pulldown from MPEG2 video tracks
-keepPulldown disable removal of pulldown for MPEG2, h264 and VC-1 tracks
-seekToIFrames make all h264/AVC "I" frames seekable
-check checks if the source EVO/(M2)TS file is clean.
-test checks if the external filters are installed & working
-lowPriority moves processing to background/idle priority
-shutdown automatically shutdown the PC after processing is done

Supported source formats:
(1) RAW, (L)PCM
(2) WAV (PCM, DTS and AC3), W64, RF64
(3) AC3, E-AC3
(4) DTS, DTS-ES, DTS-96/24, DTS-HD Hi-Res, DTS-HD Master Audio
(5) MP1, MP2, MP3 audio
(6) AAC audio
(7) MLP, TrueHD, TrueHD/AC3
(8) FLAC
(9) EVO/VOB/(M2)TS and MKV

Decoded audio data can be stored as / encoded to:
(1) RAW, (L)PCM
(2) WAV (PCM only), W64, RF64, AGM
(3) WAVs (multiple mono WAV files, PCM only)
(4) AC3
(5) DTS
(6) AAC
(7) FLAC

For best AC3, E-AC3 and AAC decoding you need:
(1) Nero 7 (Nero 8 won't work!)
(2) Nero HD DVD / Blu-Ray plugin

For best DTS decoding you need:
(1) ArcSoft DTS Decoder - version or newer

For DTS encoding you need:
(1) SurCode DVD DTS - version 1.0.21 or newer

For AAC encoding you need:
(1) Nero AAC Encoder

For video muxing you need:
(1) Haali Matroska Muxer

Sections/Browse similar tools

Guides and How to's

From Blu-ray Disc (3D) to MKV, M4V for iOS/Apple TV and 3D SBS

- Read

How to convert a Blu-ray disc into a .MKV 720P file

- Read

How to extract subtitles from a Blu-ray and convert to srt or sub/idx

- Read

How to Use eac3to

- Read

eac3to video tutorials

View all guides with guide description here

Acronyms / Also Known As

UsEac3to, eac3togui, Eac3to and More GUI, HD-DVD/Blu-Ray Stream Extractor, HdBrStreamExtractor

Download eac3to Portable download from the Download links under Download and Download other versions!

Share software

Facebook    Twitter    Reddit    LinkedIn    Pinterest    Google+    Email

Notify me when software updated or report software

Email me when it has been updated    Report this software (dead link/new version)  

8 reviews, Showing 1 to 5 reviews

No comments. Rating it only.

Review by haarkon on Jun 17, 2018 Version: 3.34 OS: Windows 10 64-bit Ease of use: 6/10 Functionality: 10/10 Value for money: 10/10 Overall: 9/10

excellent tool. highly recommended. I am currently using this for normalizing 24bit 96k wav files, but I can see myself using this flexible and reliable tool in many different ways.

Review by mikehirst on Oct 18, 2011 Version: OS: WinXP 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

everything works perfect ... the only remark I have is will be better to show percents for progress instead of 79 dashes

Review by airsoft on Aug 1, 2010 Version: 3.22 OS: Windows 7 Ease of use: 10/10 Functionality: 10/10 Value for money: 1/10 Overall: 10/10

Absolutely outstanding.

Review by pmshah on Apr 2, 2010 Version: 3.18 OS: Windows 7 Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

But, why frame rate change has to be only between 25 and 23.976, only ???
I'm sure, we we have to expect more...
Thanks, again !!!

Review by chrchr on Jan 25, 2010 Version: 1.09 OS: Vista Ease of use: 10/10 Functionality: 9/10 Value for money: 10/10 Overall: 10/10

8 reviews, Showing 1 to 5 reviews

1 tool hits, Showing 1 to 1 tools

NEW SOFTWARE= New tool since your last visit
NEW VERSION= New version since your last visit
NEW REVIEW= New review since your last visit
NEW VERSION= New version

Type and download
NO MORE UPDATES? = The software hasn't been updated in over 2 years.
NO LONGER DEVELOPED = The software hasn't been updated in over 5 years.
RECENTLY UPDATED = The software has been updated the last 31 days.
Freeware = Download Free software.
Freeware/Trialware = Download Free software but some parts are trial/shareware.
Free software = Download Free software and also open source code.
Freeware/Ads = Download Free software but supported by advertising, usually with a included browser toolbar. It may be disabled when installing or after installation.
Free software/Ads = Free Download software and open source code but supported by advertising, usually with a included browser toolbar. It may be disabled when installing or after installation.
Trialware = Also called shareware or demo. Free Trial version available for download and testing with usually a time limit or limited functions.
Payware = No demo or trial available.
Portable version = A portable/standalone version is available. No installation is required.
v1.0.1 = Latest version available.
Download beta = It could be a Beta, RC(Release Candidate) or an Alpha / Nightly / Unstable version of the software.
Download [15MB] = A direct link to the software download.
[Win] = Windows download version. It works on 32-bit and 64-bit Windows.
[Win64] = Windows 64-bit download version. It works only on 64-bit Windows.
[Mac] = Mac download version. It works on 32-bit and 64-bit Mac OS.
[Mac64] = Mac OS download version. It works only on 64-bit Mac OS.
[Linux] = Linux download version.
[Portable] = Portable version. No installation is required.
[Ad-Supported] = The software is bundled with advertising. Be careful when you install the software and disable addons that you don't want!
Visit developers site = A link to the software developer site.
Download (mirror link) = A mirror link to the software download. It may not contain the latest versions.
Download old versions = Free downloads of previous versions of the program.
Download 64-bit version = If you have a 64bit operating system you can download this version.
Download portable version = Portable/Standalone version meaning that no installation is required, just extract the files to a folder and run directly.
Portable version available = Download the portable version and you can just extract the files and run the program without installation.
Old versions available = Download old versions of the program.
Version history available = Complete changelog on our site.
Windows = Windows version available.
Mac OS = Mac OS version available.
Linux = Linux version available.
Our hosted tools are virus and malware scanned with several antivirus programs using

Rating from 0-10.

Browse software by sections
All In One Blu-ray Converters (11)
All In One DVD Converters (15)
All In One MKV to MP4/Blu-ray/UHD (11)
All In One Video Converters (23)
Animation (3D/2D Animation) (11)
Audio Editors (15)
Audio Encoders (73)
Audio Players (15)
Authoring (Blu-ray/UHD/AVCHD) (20)
Authoring (DivX) (5)
Authoring (DVD) (32)
Authoring (SVCD/VCD) (10)
Bitrate Calculators (7)
Blu-ray to AVI/MKV/MP4 (15)
Blu-ray to Blu-ray/AVCHD (10)
Burn (CD,DVD,Blu-ray) (23)
Camcorders/DV/HDV/AVCHD (32)
Capture TV/DVD/VCR (32)
CD/DVD/Blu-ray recovery (3)
Codec Packs (7)
Codec/Video Identifiers (29)
Codecs (65)
Decrypters (Blu-ray Rippers) (9)
Decrypters (DVD Rippers) (14)
DigitalTV/DVB/IPTV (38)
DVD to AVI/DivX/XviD (16)
DVD to DVD (21)
DVD to MP4/MKV/H264/H265 (16)
ISO/Image (16)
Linux Video Tools (139)
MacOS Video Tools (185)
Media (Blu-ray/DVD/CD) (9)
Media Center/HTPC (39)
Other Useful Tools (130)
Photo Blu-ray/DVD/SlideShow (9)
Portable (Mobile/PSP) (35)
Region Free Tools (5)
Screen capture / Screen recording (23)
Screenshots / Thumbnails (11)
Subtitle Editors (64)
Video De/Multiplexers (56)
Video Editors (Advanced/NLE) (32)
Video Editors (Basic) (49)
Video Editors (H264/MP4/MKV/MTS) (19)
Video Editors (MPG/DVD) (18)
Video Editors (WMV/AVI) (16)
Video Encoders (AVI/WMV) (39)
Video Encoders (H264/H265/MP4/MKV) (45)
Video Encoders (MPG/DVD) (25)
Video Encoders / Converters (150)
Video Frameservers (9)
Video Players (40)
Video Repair/Fix (21)
Video Scripting (11)
Video Streaming (22)
Video Streaming Downloaders (78)
Virtualdub Tools (11)

Search   Contact us   Privacy Policy   About   Advertise   Forum   RSS Feeds   Statistics   Software   

Site layout: Default Classic Blue