FORUMS: list search recent posts

Is there a way to reduce static in an 8 KHz/8-bit/mono wav file?

COW Forums : Adobe Audition

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Patrick Haley
Is there a way to reduce static in an 8 KHz/8-bit/mono wav file?
on Feb 25, 2019 at 4:36:46 am

Hi all, new to audio here and could use some help. I'm updating the hold music for our telephone system and it requires an 8 KHz/8-bit/mono wav file. I've used Audition CC to reduce the volume to -9.0 dB, I've converted to 8 KHz and mono without any problems. However, when I convert to 8-bit the quality diminishes considerably. I understand I will lose some quality, but is it supposed to be THIS bad? Is there something I'm missing here?

Original mp3: https://vocaroo.com/i/s00XydI9ayqv

8-bit wave: https://vocaroo.com/i/s10dOYN6CWGG

Any help is greatly appreciated. Thanks!


Return to posts index

Chris Wright
Re: Is there a way to reduce static in an 8 KHz/8-bit/mono wav file?
on Feb 25, 2019 at 7:15:35 pm

it just adds a little noise, in convert sample type, use dither gaussian and then automatic noise removal. default settings. will sound great, well, at least for 8 bit lol. if you can keep the 22khz, that's good too.


Return to posts index

Patrick Haley
Re: Is there a way to reduce static in an 8 KHz/8-bit/mono wav file?
on Feb 25, 2019 at 9:00:27 pm

Ok, I managed to figure this out with help from a few different threads. What I was doing was converting to an 8-bit mono file, importing the wav file, running the noise reduction and then saved again as an 8-but mono file. If the file is already 8-bit/mono, just save and match the source type. I found out the KHz doesn't really matter so I left that alone to maintain some quality. Here are my steps:

1. Import the mp3
2. Go to Edit > Convert to Sample Type. Set channels to mono, bit depth to 8-bit, enable dithering and set to gaussian
3. Capture the noise print and run noise reduction using this tutorial:




4. Export the file as a wav and choose "Same as Source for all options"

This should maintain the quality of the export and drastically decrease the noise.


Return to posts index


Chris Wright
Re: Is there a way to reduce static in an 8 KHz/8-bit/mono wav file?
on Feb 25, 2019 at 10:38:11 pm

did capture noise print noise reduction work better for you than automatic noise reduction? just curious.
a really nice trick for noise reduction is choose different FFT sizes, listen for output only in multiple passes.


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2019 CreativeCOW.net All Rights Reserved
[TOP]