GoPro Hero 7 - hissing noise instead of sound

Christian-Rinke wrote on 10/22/2018, 2:48 PM

BTW, here is the audio information of the gopro file:

bit rate: 185kbps

channels: 2 stereo

Audio sample rate: 48.000kHz

ITEM type: MP4 file

Please let me know if you need any other info.

Best,

Chris

Christian-Rinke wrote on 10/22/2018, 10:31 PM

Seems the only way is to convert the MP4 into MP3 (for example with VLC) player, and then to import the MP4 and the MP3 file into Magix, remove the sound from the MP4 file and align the MP3 file to the MP4 movie. This works, but it sucks that Magix can't read MP4 correctly ;-(

emmrecs wrote on 10/23/2018, 3:59 AM

@Christian-Rinke

This works, but it sucks that Magix can't read MP4 correctly ;-(

I would agree wholeheartedly, if that were always true, but it isn't! mp4 files can be and are successfully played back in MEP, but mp4 is a "container" format, the actual codecs used in its creation can, and do, vary widely! My suspicion is that the GoPro is using some kind of proprietary codec which MEP cannot read.

So, please download and install the free Mediainfo utility, point it to one of your GoPro native files (i.e. NOT one whose audio you have converted) and post the results of the Text view to your reply. That will show exactly which codec the GoPro is using and may well give we fellow-users some ideas to help you.

As a matter of interest, I would certainly NOT consider converting the audio to mp3, which is designed to be a "presentation" format, can be quite/very highly compressed (thus permanently removing some data) and is really not suitable to use in any "editing" program.

Jeff

RogerGunkel wrote on 10/23/2018, 4:37 AM

I film for a living and use various cameras that film in MP4 including GoPros, Yi, and Panasonic. All my editing is carried out in Magix VPX and I have never had a problem with mp4 files including 4k. I would agree with everything that Jeff said in his post.

Roger

Christian-Rinke wrote on 10/23/2018, 11:00 AM

Great, thanks Jeff, always nice to learn something you. Here is the Mediainfo output:

General
Complete name : D:\PICTURES and VIDEOS\2018-10_Oregon\GoPro_Alpacas\GH010001_carel_talks.MP4
Format : MPEG-4
Format profile : Base Media / Version 1
Codec ID : mp41 (mp41)
File size : 120 MiB
Duration : 16 s 619 ms
Overall bit rate mode : Variable
Overall bit rate : 60.5 Mb/s
Encoded date : UTC 2018-10-17 18:28:44
Tagged date : UTC 2018-10-17 18:28:44
xyz : +45.4218-122.8142/

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 2 frames
Format settings, GOP : M=1, N=30
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 16 s 600 ms
Bit rate mode : Variable
Bit rate : 60.0 Mb/s
Width : 1 920 pixels
Height : 1 440 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.362
Stream size : 119 MiB (100%)
Title : GoPro AVC
Language : English
Encoded date : UTC 2018-10-17 18:28:44
Tagged date : UTC 2018-10-17 18:28:44
Color range : Full
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 16 s 619 ms
Bit rate mode : Constant
Bit rate : 192 kb/s
Nominal bit rate : 48.0 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 384 KiB (0%)
Title : GoPro AAC
Language : English
Encoded date : UTC 2018-10-17 18:28:44
Tagged date : UTC 2018-10-17 18:28:44

Other #1
ID : 3
Type : Time code
Format : QuickTime TC
Duration : 16 s 600 ms
Time code of first frame : 18:46:24:52
Time code, striped : Yes
Title : GoPro TCD
Language : English
Encoded date : UTC 2018-10-17 18:28:44
Tagged date : UTC 2018-10-17 18:28:44
Bit rate mode : CBR

Other #2
Type : meta
Duration : 16 s 16 ms
Bit rate mode : VBR

Other #3
Type : meta
mdhd_Duration : 16600
Bit rate mode : VBR

The workaround to converting to mp3 is surely not ideal, but that was the only solution I could find so far - based on some youtube videos of other people having a similar problem.

Cheers, Chris

emmrecs wrote on 10/23/2018, 11:32 AM

Hi again.

Thanks for the additional information.

I see the audio in the file uses the AAC LC codec. The fact that you cannot hear the correct audio seems to suggest that codec is missing from your computer. I also see that one entry says "GoProAAC", which suggests, I think, a proprietary codec is being used, i.e one that is not generally available to other, non-GoPro software.

Have you tried playing one of your files in any other playback software than MEP? If so, was it successful?

Jeff

Christian-Rinke wrote on 10/23/2018, 2:44 PM

Hi Jeff, but how do you explain that all other software that I tried (Dell Media player, VLAN player) can play the video with sound just find on my computer? - only Magix Movie Edit Pro 2016 (Vs 15.0.0.114 (UDP3) can't.

-Chris

Scenestealer wrote on 10/23/2018, 5:36 PM

Hi

Hi Jeff, but how do you explain that all other software that I tried (Dell Media player, VLAN player) can play the video with sound just find on my computer? - only Magix Movie Edit Pro 2016 (Vs 15.0.0.114 (UDP3) can't.

These players have their own codecs built in but programs like NLE's are only licensed to use certain codecs and can not necessarily access other codecs on your system. You may need to import the footage to the Gopro software and output it with a codec that is available in MEP.

BTW - Media Info states the clips audio bit rate is 192kbps but you stated earlier that it was 185kbps? MEP often baulks at non standard bit rates.

Peter

johnebaker wrote on 10/24/2018, 12:20 AM

@Christian-Rinke

Hi

Do you have any 'All in one' codec packs, eg KLite, installed?

If so uninstall it, it is not necessary for MEP, and then Restart the computer and try loading the video file in again.

Also try the restoring the original sound - right click the video clip on the timeline and select Audio functions, Restore original sound.

HTH

John EB

Christian-Rinke wrote on 10/31/2018, 1:52 AM

Thank you John,
but no, there is no "All in one" codec pack installed on my system, and audio functions doesn't include an "Restore original sound option" in my MEP 2016 PLUS anyway.

Interestingly MEP 2018 - I just installed the free trial version on my PC next to MEP 2016- does not have the "gopro sound" issue. So I still think it might be a bug in the 2016 version, and I am afraid I have to upgrade (=$100) to fix this.

@Peter, the 185kbps is what I get when I make a right click in windows explorer, not sure how accurate that is . . .

Patrick-Dadzio wrote on 12/27/2018, 4:31 AM

Hi,

I have got the same problem. Did you find a solution after your last post or did you upgrade?

yvon-robert wrote on 12/27/2018, 10:15 AM

Hi,

you work with the latest GoPro technology and try to use an old Magix 2016 version you must upgrade to 2019 or try the demo version. A Video player like Dell is alway updated that is the reason player read and play without problem. Don't try to play with computer you are not programmer and have no ressources or programming ability.

Regards,

YR

johnebaker wrote on 12/27/2018, 12:48 PM

@Patrick-Dadzio

Hi

Please read this topic and come back with more information ie:

your computer specification
GoPro model you are using
more information on the actual issue
MediaInfo analysis data from one of the clips that is causing the issue.

Thanks

John EB

Christian-Rinke wrote on 12/27/2018, 4:58 PM

Hi Patrick,

I had MEP 2016 and MEP 2018 (trial version) running on the same system but only the latter could play the gopro files correctly, so I decided to pay for the upgrade. Now I run the MEP 2018 full version and it works just fine with the footage from the GOPro Hero 7.