DR stopped supporting ac3 audio in .mts files?

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Joao Dutra

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DR stopped supporting ac3 audio in .mts files?

PostThu Nov 14, 2024 1:34 am

Hello everyone,

Couple of weeks ago I was using Davinci Resolve 18 and editting the .mts files that comes from my Panasonic HMC 150 camcorder.

I was using windows 11 and everything was working fine.

This week I formated the pc and re installed Davinci resolve (version 19) and whem I throw the clips on the timeline DR doesnt recognize the audio files anymore. there is no waveforms.

I noticed that windows 11 (22h2) stopped supporting ac3 audio files, there is no sound when you play the files on windows player. But when I installed VLC the sound was back to normal.

Since that I cannot edit the files on DR with audio on it. I tried to down grade the program to several versions prior to 19 but with no sucess.

Thats so frustating. Even with windows not supporting ac3 anymore davinci should be able to recognize them. Now Im using handbrake to convert the files to aac or mp3 and its a pain cause I have to re sync with the video files on the timeline.

Does anyone else is facing the same issues?
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Jim Simon

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Re: DR stopped supporting ac3 audio in .mts files?

PostSun Nov 17, 2024 5:58 pm

Resolve will often draw on the OS and hardware for codec support.

If that support goes missing from the OS or hardware...

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Uli Plank

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Re: DR stopped supporting ac3 audio in .mts files?

PostMon Nov 18, 2024 3:14 am

Can you post a short sample to a cloud service?
My disaster protection: export a .drp file to a physically separated storage regularly.
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Joao Dutra

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Re: DR stopped supporting ac3 audio in .mts files?

PostWed Nov 20, 2024 8:39 pm

Uli Plank wrote:Can you post a short sample to a cloud service?


sure!

Image
here it says that there is no support for AC3 codec.

Image
here is Davinci with no waveforms

Today I downloaded Dolby AC-3/AC-4 Installer. Now Windows media player is playing the clips with sound but Davinci keeps without waveforms and no sound at all.
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Uli Plank

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Re: DR stopped supporting ac3 audio in .mts files?

PostThu Nov 21, 2024 3:26 am

According to this list it is supported:
https://documents.blackmagicdesign.com/ ... 1484810000

What happens if you re-wrap into .mov?
My disaster protection: export a .drp file to a physically separated storage regularly.
www.digitalproduction.com

Studio 19.1.3
MacOS 13.7.4, 2017 iMac, 32 GB, Radeon Pro 580 + eGPU
MacBook M1 Pro, 16 GPU cores, 32 GB RAM, MacOS 14.7.2
SE, USM G3
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Joao Dutra

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Re: DR stopped supporting ac3 audio in .mts files?

PostThu Nov 21, 2024 1:51 pm

Uli Plank wrote:According to this list it is supported:
https://documents.blackmagicdesign.com/ ... 1484810000

What happens if you re-wrap into .mov?


Today I found the solution!

Went to techspot.com and downloaded Microsoft Dolby AC3 Installer.


Everything is working back to normal again. thank you guys!
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Chris BXL

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Re: DR stopped supporting ac3 audio in .mts files?

PostSun Jan 05, 2025 1:19 pm

Hello,
Thank you for this solution to the problem of playing sound on .mts from my Panasonic VX870 camcorder. I just installed a new desktop under W11 pro v 24h2 and it had become impossible compared to my old PC under W10.
Everything is back to normal
Greetings

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