Hissing noise in PSB-7 Spirit Box Audio

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Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by caseyparnell » Tue Apr 18, 2017 12:02 am

Hello I'm trying to figure out how to remove the Hissing noise on my PSB-7 Spirit Box recording audio. I use noise removal to remove all of the White noise but seem to can't get rid of the hissing noise. Can someone please help? Would appreciate it.
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by steve » Tue Apr 18, 2017 8:28 am

Your question does not appear to make sense. White noise sounds like hissing.
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by Gale Andrews » Tue Apr 18, 2017 1:58 pm

This is the same question as before about recording/isolating non-existent spirit voices: https://www.amazon.co.uk/P-SB7-Spirit-Box-Research-Device/dp/B00545JSNG.

As suggested before, you will need to post a few seconds of raw, unchanged recording as a WAV or AIFF file if you want help, so we can understand the problem better. Please see here for how to attach files: http://forum.audacityteam.org/viewtopic.php?f=49&t=64936.


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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by caseyparnell » Wed Apr 26, 2017 4:04 am

Ok I uploaded a 55 sec Audio file from my PSB-7 Spirit Box. I did Noise Removal 3 Times. I sent a picture of my settings. There is still Hissing here and there. I cant figure out how to remove the hissing noises. How ever after the noise reduction has been done 3 times Listen closely at 44 seconds. Theres a voice that says Melissa. I don't know if the hissing noise is covering up responses or not. I just would like to know how to remove the hissing noise. For those who would like to help use the settings I got for Noise Removal 3 times. Any help on getting rid of the hissing noises would be appreciated.
Attachments
Z0000110.MP3
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IMG_0246.JPG
IMG_0246.JPG (28.73 KiB) Viewed 171 times
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by steve » Wed Apr 26, 2017 10:54 am

To apply Noise Reduction multiple times, you need to make a new "noise profile" for each pass.

caseyparnell wrote:Listen closely at 44 seconds. Theres a voice that says Melissa.

I can hear a voice-like sound, but to me it sounds like it's saying "where ya vest today <squeak>"
Z0000110.wav
(619.42 KiB) Downloaded 9 times
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by Trebor » Wed Apr 26, 2017 11:11 am

caseyparnell wrote:... I did Noise Removal 3 Times.

Noise-reduction will generate processing-artifacts, some of which can sound like speech.
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by steve » Wed Apr 26, 2017 11:22 am

Trebor wrote:Noise-reduction will generate processing-artifacts, some of which can sound like speech.

The sample that caseyparnell posted is prior to noise reduction, and there is clearly a voice-like sound around 44 seconds. My best guess of where that voice-like sound comes from is that it is a fleeting snippet of a radio broadcast.
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by caseyparnell » Wed Apr 26, 2017 12:47 pm

Any idea in how to remove the Hissing noise though?
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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by Gale Andrews » Wed Apr 26, 2017 1:25 pm

caseyparnell wrote:Any idea in how to remove the Hissing noise though?

You have Sensitivity at almost zero. Zero turns the Noise Reduction effect off, so you have almost turned the effect off. You should increase Sensitivity at least a little.

See http://manual.audacityteam.org/man/noise_reduction.html.


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Re: Hissing noise in PSB-7 Spirit Box Audio

Permanent link to this post Posted by caseyparnell » Wed Apr 26, 2017 4:14 pm

I'll give that a shot. Thank you.
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