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Exporting clip with no sound, will not play on 4K tv because "audio format not supported"

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Duke Sweden
Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 23, 2017 at 2:31:05 am
Last Edited By Duke Sweden on Oct 23, 2017 at 2:40:25 am

I'm trying to watch a clip I graded, on my 4K tv (Note: I am NOT a professional like most of you, I do this for fun). Anyway, when recording the clip I forgot to turn on the mic, of course, so there's no sound. I'm exporting the clip as an mp4, video only. It plays fine on my PC but when I put it on a thumbnail drive and plug it into my 4K tv, it plays for about 1 second or so, then I get that error message about the audio format (which is aac, but not being exported), then the clip stutters a bit, and then stops.

Am I rendering in the wrong codec or format?

EDIT: Just tried playing another clip with audio and it does the same thing, minus the error message about the audio, it plays like 1 out of 24 frames for a few seconds and then stops. What format should I be using to play my files off a USB drive on a 4K tv?

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 23, 2017 at 3:59:33 am

[Duke Sweden] "What format should I be using to play my files off a USB drive on a 4K tv?"

Check the TV manual for the supported media formats.


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 23, 2017 at 11:36:33 am

I did! (Surprised? 😉 ) The tv supports mp4, h264. It also says something about 3GP as the container but I see no such choice in Resolve.

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 23, 2017 at 3:27:38 pm

Mp4 H264 is a pretty vague spec. If it doesn't support AAC then it might support an MP3 audio track. You can't get that from Resolve though.


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 24, 2017 at 11:45:20 am

According to the Samsung manual the tv supports just about every codec and container, and it specifically listed MP4/h264 with HE-AAC audio. I don't know about you but I'm really getting sick and tired of all these proprietary formats!!!

Anyway, I tried another clip I had that does have audio. It plays the audio for the few seconds that the clip plays before bogging down. Also, (and I know that this was not true at one point) but I actually used an mp3 clip in my video and was able to output audio in Resolve.

I am going to try playing an unaltered straight out of camera .mov clip later and see if maybe something I'm doing in Resolve is the culprit.

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Jeff Sargeant
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 23, 2017 at 2:29:10 pm

Try lowering the bitrate to about 5000 KBps and see if that helps, sometimes H264 files have trouble playing at higher bitrates.

Jeff Sargeant
Videographer @
Flowmaster/Hurst/B&M
Hayden, ID


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 24, 2017 at 11:46:06 am
Last Edited By Duke Sweden on Oct 24, 2017 at 1:03:02 pm

I'll give it a shot and report back. Thanks, Jeff.

EDIT: Are you sure you meant 5,000 and not 50,000 bits? That seems like quite a dropoff from the "Best" setting of 80,000. Anyway I rendered at 50,000 bits and it played. Of course I had to choose a clip with no sound so I got the unsupported format error. Rendering another clip with sound at 50,000 bits. Fingers crossed.

EDIT2: Yes! Video played flawlessly with no perceivable loss in quality at 50,000 bits. Thanks, Jeff!

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 24, 2017 at 1:50:42 pm

You really don't need to export H264 at the maximum allotted bitrate because it pretty fast goes to the point where you're not going to notice any difference and some hardware can't decode it depending on what profile/level of H264 they support. QED i guess. If you want a master quality file I'd suggest a master format like DNxHR.

For example blurays max out at 48 Mbps for video and audio tracks combined and they usually won't go that high depending on how much other stuff you need to fit on the disc.


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 24, 2017 at 1:52:41 pm

You can see the limitations in this wiki article:

https://en.wikipedia.org/wiki/H.264/MPEG-4_AVC#Profiles


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 3:27:38 am
Last Edited By Duke Sweden on Oct 25, 2017 at 3:29:43 am

Isn't 48mbps a LOT more than 80,000 bits? Also, will a DNxHD/R file play nice off a USB drive on a 4K tv? I'll probably try it out for myself before you respond, but...

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 3:49:49 am

[Duke Sweden] "Isn't 48mbps a LOT more than 80,000 bits? "

80000 Kbps = 80 Mbps

[Duke Sweden] "Also, will a DNxHD/R file play nice off a USB drive on a 4K tv?"

No, but I said that it would be a master. Master files will retain their quality. Then you can make compressed versions from that master instead of making huge H264 files that have diminishing returns or don't work at all if used with hardware/software that is limited by the H264 profile/level it supports.


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 11:57:26 am

I keep telling you I'm just a kid!!! 😉 I really don't need to be making lossless copies for archiving purposes. Most of the time when I'm finished playing with a file I delete it. And where did this mysterious "k" come from, suddenly? Don't confuse me with facts!!!

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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Tero Ahlfors
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 12:40:26 pm

[Duke Sweden] "And where did this mysterious "k" come from, suddenly?"

That's what Resolve uses. Some pieces of software use Mbps. 80000 bits per second (80 Kbps) would be really low for anything other than modern art or simulating a really bad internet stream. You can test this by inputting the number 80 to the "restrict to" box.


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Jeff Sargeant
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 5:51:58 pm

Yes I did mean 50,000 bits (or 5000 Kb/s), and no problem! Glad I could help. I find that setting to be a good overall export setting for H264 files, it's compatible with almost everything including YouTube and it looks pretty good overall. The render engine in Resolve is excellent!

Jeff Sargeant
Videographer @
Flowmaster/Hurst/B&M
Hayden, ID


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Duke Sweden
Re: Exporting clip with no sound, will not play on 4K tv because "audio format not supported"
on Oct 25, 2017 at 6:05:33 pm

I must be getting senile. Since Dick Clark died I'm the world's oldest teenager 😖 Suddenly I'm seeing "k's" all over the place including in your original response, Jeff. Anyway, thanks again to both of you. Now I can watch my utterly worthless video clips in stunning 4K, as TV Answer Man! would say.

Dell XPS 8920
Intel i7 core 7700 build
GeForce GTX 1050ti
32 Gigs of RAM
3 7200 RPM SATA Drives
Windows 10 64-bit
Premiere Pro CC 2017 v.11.0


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