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MPEG Audio in AVI container output wrong parameters

Posted: Mon Aug 01, 2016 3:47 pm
by SuperGod
Settings:

Image

Result file:

Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz <------

Please fix this.

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 02, 2016 11:40 am
by Bandicam Company
Hi SuperGod,

We've failed to reproduce the problem you reported.

Could you let us know your Format settings?
(If you choose "44100 Hz" at the Frequency menu, you will see 44.1KHz.)
Image

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 02, 2016 10:12 pm
by SuperGod
ANY codec, ANY settings, just AVI container.

Setting MPEG-1 L2 44 100 in badicam produce video file with 48 000 audio
32 000, 24 000, 22050 works fine.

I even tried on a complete FRESH machine, the same result, the latest version.

MP4 container works fine, but it is AAC so I'm not suprised, it's not broken.

MediaInfo can't be wrong, I even extracted audio, yes, it is 48 000 instead 44 100.


Video
ID : 0
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Codec ID : X264
Codec ID/Info : XiWave GNU GPL x264 MPEG-4
Duration : 7mn 28s
Bit rate : 9 371 Kbps
Width : 1 024 pixels
Height : 768 pixels
Display aspect ratio : 4:3
Frame rate : 60.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.199
Stream size : 501 MiB (98%)

Audio
ID : 1
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Codec ID : 50
Duration : 7mn 28s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 10.3 MiB (2%)
Alignment : Aligned on interleaves
Interleave, duration : 24 ms (1.44 video frame)

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 02, 2016 10:50 pm
by Zuzu_Typ
So the problem seems to be that the AVI files can only be saved sampling rates 24kHz, 32kHz and 48kHz.
(I tested it out myself)

My only guess is, that the AVI container simply doesn't support custom frequencies or that there's a bug in Banidcam.

I hope I was able to help,
--Zuzu_Typ--

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 02, 2016 10:53 pm
by SuperGod
Of course it is a bug, simple as that.
https://en.wikipedia.org/wiki/MPEG-1_Au ... ifications

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 02, 2016 11:40 pm
by Zuzu_Typ
With that argumentation you would be unable to have an avi file with a frequency of 24kHz, but you can, even with the MPEG-1 audio codec.

Re: MPEG Audio in AVI container output wrong parameters

Posted: Wed Aug 03, 2016 1:44 am
by SuperGod
Sampling rates: 32, 44.1 and 48 kHz are part of basic MPEG-1 Audio Layer II
It's pretty obvious they implemented the other formats like 22K

But whatever, forget about what wiki says.

Bandisoft wrote:We've failed to reproduce the problem you reported.


That means it works for them so it is supported.

44 100 can be set, it's there, inside a program so it should work.
If not, it's buggy.

I'm more concern about having them a problem to reproduce this since me and my friends got the same results.
Pretty weird.

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 09, 2016 9:26 am
by SuperGod
Bandisoft check your Inbox, I've send you PM 6 days ago.

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 09, 2016 6:44 pm
by Bandicam Company
Hi SuperGod,

We misunderstood your first post.

We could reproduce the issue you reported and have forwarded this issue to the development team.

Thank you very much for your report.

Re: MPEG Audio in AVI container output wrong parameters

Posted: Tue Aug 09, 2016 9:05 pm
by SuperGod
Thank you.