# Synchronized Audio/Video Playback With Tacview Standard, replay up to 8 audio/video files at the same time as the main playback, using whatever file formats that are supported by your installation of Windows. Open the windows where the files will play by clicking `Analysis` → `Media 1` to `Media 8`. ![Synchronized A/V - Media 1-8](/files/sHNUDcDIq7iUpqRuudYY) [Customize the window layout](/tacview/customization/window-layout.md) as desired. Click on the file folder icon in the window and browse to locate and open your audio/video file. ![Synchronized A/V - Open File](/files/BWOGJyzIrYq2bcglYv1N) The windows containing the audio/video files can be docked or floating, opaque or transparent. Right click on their title bars to change the options. Drag them around to place them or dock them wherever you want them. ![Synchronized A/V - Window Options](/files/810cv8lS5qPudAuJVa3j) ### Manually Sync Use the playback control bars of the 3D view timeline and the additional audio/video windows to synch up everything to the right spot. Then, hit play and just use the 3D view timeline to control the playback of everything. ![Synchronized A/V - Sync Manually](/files/wo2UUtU8fyrjXKX8EfLY) ![Synchronized A/V - Sync Manually](/files/5TOSURf5SS3fQjBKWt8a) ### Automatically Sync Tacview will automatically synchronize the media file with the telemetry if the correct metadata is available. The presence of date-time metadata depends on each device. Tacview uses this metadata and not, say, the Windows "date created" or "date modified". Here are two examples of what is and what is not metadata: ![Syncronized A/V - Metadata Example](/files/ofh3ErMskv8Yk1ieIRbj) ![Syncronized A/V - NOT Metadata Example](/files/y6ZO8FzswqRVD6aHy1We) ### Sync by Timestamp Alternatively, add the timestamp to the file name of your media file in the format `YYYYMMDDTHHMMSSZ` — so that October 24th 2019 at 09h15 UTC would be `20191024T091500Z`. Then the media file will start playing exactly at 9:15 a.m. in your telemetry. A timestamp found in the filename will be used in priority over any metadata. ### Load media files automatically Use the `Auto Load Media` add-on to automatically load media files corresponding to the primary and (optionally) secondary selected objects. Activate the add-on by selecting it from the `Options` → `Enable/Disable Add-Ons` menu, then access it directly from the `Options` menu and indicate whether you want it to work for `Primary Object Only` or `Both Selected Objects`. ![Syncronized A/V - Enable Add-on](/files/U2wPASPAzIgPRWAwGeD0) ![Syncronized A/V - Use Add-on](/files/ewWvlFkjdokx7Mw2xiou) To use it, store your media files in the same folder as your `ACMI` files. The following naming convention is recommended: `<> <> <>.mpg` For example: `MAVERICK 1 20210730T180000Z.mpg` `MAVERICK 2 20210730T183000Z.mpg` `BANDIT 1 20210730T183000Z.mpg` `BANDIT 2 20210730T190000Z.mpg` `BANDIT 3 20210730T181500Z.mpg` `BANDIT 4 20210730T200000Z.mpg` The following file extensions are supported: `.avi`, `.mkv`, `.mov`, `.mp3`, `.mp4`, `.m4a`, `.mpg`, `.ogg`, `.wav`, `.wma`, `.wmv`. Up to 8 media files, in 8 separate windows, can be displayed per selected object (for a grand total of up to 8 windows). Load the `ACMI` file into Tacview and the media windows will automatically open and populate the relevant media files. ### Troubleshooting If Tacview won't play your audio/video file, this may mean that your installation of Windows does not support that file type. Try to replay it in Windows Media Player to see if it is really an issue with Tacview. If it plays in the Windows Media Player but not in Tacview, contact us at to get more help. To increase the variety of audio/video files that can be replayed by your computer, download a Codec pack. The [K-Lite Basic Codec Pack](https://codecguide.com/download_kl.htm) may be all you need. Remember that many media files are actually just containers that can have any other file types inside them. So be sure to check inside your media file to find out what's really in there, and download the appropriate Codecs to support those file types. ### MP3 Variable Bit Rate Files Windows is not able to synchronize an mp3 variable bit rate file to Tacview properly. Don't use this file type; use mp3 constant bit rate instead. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://raia-software-inc.gitbook.io/tacview/features/tacview-standard/synchronized-audio-video-playback.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. 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