Sound quality

[Razvaneyson]

Hi all,

Hope you can help.
Got a YT chanel where i post videos with nature sounds, rain sounds wind etc.

If i open the sorce file from pc in vlc, the sound is greate.
The problems is when i try to play a video live, the audio quality drops a lot(media source or vlc), and that is when i turn on the audio monitor, if i go live its even worst.

I tried a lot of different setups for the audio quality in premier pro and obs still the same, looks like nothing works to improve audio quality(video quality excellent).

OBS settings match the video settings.

I’m thinking to buy a ElGato cature card, will that improve the audio?


Any advice will be greate.

 

[Tomasz Góral]

Source file with greate quality, can you tell us litte more about audio in source file ?

 

[Razvaneyson]

Source file with greate quality, can you tell us litte more about audio in source file ?

Thank you for your replay,
Just to mention not an expert :))

Audio in Source file(using Adobe Audition):
Wav file
sample rate: 48000HZ
channel: stereo
bit depth: 32(float)
Source format: waveform audio 32-bit floating point (ieee).

Also i attached the obs log file maybe i`m missing something.

 

[Tomasz Góral]

bit depth: 32(float) - it's your problem. OBS use 48kHz and 16 bits not 32 (float).

 

[rockbottom]

OBS with VLC as source will playback 32/48 float. I'm listening to a recording from the other night & it sounds perfect. How are the levels on those 32/48 Float files? Are they peaking over 0dBfs? If so, there's your problem.

Levels need to be adjusted for Fixed Point Playback.

https://www.sounddevices.com/32-bit-float-files-explained/

 

[Razvaneyson]

OBS with VLC as source will playback 32/48 float. I'm listening to a recording from the other night & it sounds perfect. How are the levels on those 32/48 Float files? Are they peaking over 0dBfs? If so, there's your problem.

Levels need to be adjusted for Fixed Point Playback.

https://www.sounddevices.com/32-bit-float-files-explained/

No they are at -15 -10

 

[rockbottom]

Re-render them in your DAW/NLE with proper levels to 16 or 24-bit & try again. 16-bit should be dithered, you don't need to dither to 24-bit, just downsample.

 

[Razvaneyson]

bit depth: 32(float) - it's your problem. OBS use 48kHz and 16 bits not 32 (float).

Thank you for pointing that out.
Need to play with Media encoder settings to sort that out.

I played just the audio file through VLC video source and is better, but still bad, to much white noise in the audio

 

[Razvaneyson]

Re-render them in your DAW/NLE with proper levels to 16 or 24-bit & try again. 16-bit should be dithered, you don't need to dither to 24-bit, just downsample.

Thank you for this,
Just played in Audition with this settings and i can hear a big difference. My rain sound, sounds a lot better.
I have enamble dithering, now i`m playing with types and noise shapping to see if i can improve sound.

 

[rockbottom]

Cool!!

When you record float, set your levels just like you would do for fixed point recordings & you won't need to scale the levels.

 

[rockbottom]

Some good info in this video, worth the watch.

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