Unsupported audio with FLV files?

PML1955

Newbie Joined: Dec 21, 2015 04:18 Messages: 2 Offline

Solved by

Dec 21, 2015 04:44

Is this an issue with 15? I was able to get rid of the echo sound by turning off Theater... but most flv files have a quick alert saying that the audio is unsupported? Great video but zero sound. I've only toyed around a little but most anything else has fine audio. Is this too vague a description of the problem? After ridding the Theater sound have I somehow disabled audio in FLV files? Odd? So far I'm loving the improved picture and the neat zoom feature. I'd love to have sound in FLV's though

nullack

Member Joined: Dec 29, 2010 04:09 Messages: 139 Offline

Dec 21, 2015 19:32

FLV is just a container format. Cyberlink PowerDVD supports a fair bunch of different codecs but its certainly not an FFMPEG like support situation.

Heres info on the supported audio codecs in the FLV container

https://en.wikipedia.org/wiki/Flash_Video

This message was edited 1 time. Last update was at Dec 21. 2015 19:33

PML1955

Newbie Joined: Dec 21, 2015 04:18 Messages: 2 Offline

Dec 21, 2015 20:03

Well... not sure what to think with a Wikipedia page. Why would I have no sound then? All other file formats seem to play/sound nicely, but these FLV's show a popup saying audio unsupported (the video portion looks great). As far as I can tell they appear to be either MP3 or AAC audio. These video files were captured using Replay Media Catcher 6. Could this software be the actual problem? These same exact files all play/sound fine using the GOM player. Does GOM have something that Cyber doesn't? I apologize for my lack of 'puter knowlege.

This message was edited 1 time. Last update was at Dec 21. 2015 20:04

nullack

Member Joined: Dec 29, 2010 04:09 Messages: 139 Offline

Dec 21, 2015 22:21

The reason in this case that you have no sound is more than likely an unsupported audio codec is involved. The wiki link is provided to help you understand what your doing.

I get your point about MP3 and AAC, but mate it could equally be speex or asao in an FLV container....

To know for sure on specific content, you need to use an inspector software like mediainfo:

https://mediaarea.net/en/MediaInfo

Mediainfo is an essential tool for digital video. But some of the installers bundle adware into it so be aware, you can avoid it by using different builds of the installer or use something like malware bytes that will get rid of PuPs (potentially unwanted programs). There is really nothing else out there like Mediainfo so its useful.

Be aware also that standards like AAC involve different levels and profiles. Not all decoders support all levels and profiles. Generally PowerDVD is pretty good for supported formats, but FFMPEG is far better with its decoder ranges.

This message was edited 1 time. Last update was at Dec 21. 2015 22:45