Page 2 of 4

Re: hum

Posted: Sat Mar 31, 2018 9:29 pm
by lonepilgrim
I`m not particularly technologically savvy but here is voice and silence

Re: hum

Posted: Sat Mar 31, 2018 9:50 pm
by lonepilgrim
now i cant get the computer to record w/o the mixer connected however the mic is not connected all gain knobs all the way down..recording slider all the way up..if i set that to 0 it goes away but I obviously can`t record like that..everything else disconnected all nearby appliances turned off

Re: hum

Posted: Sat Mar 31, 2018 10:38 pm
by kozikowski
nothing physically connected to the computer.
Laptop?

Are you recording the laptop built-in microphone? The sound has to be coming from somewhere. Audacity gets sound from the machine not the connection or device.

You could do the scratch test.

http://kozco.com/tech/audacity/clips/ScratchTest2.mp3

In this case, my microphone is just left of my left-hand shift key.

Do you have a web cam? Scratch that.

Koz

Re: hum

Posted: Sun Apr 01, 2018 1:42 pm
by Trebor
lonepilgrim wrote: ATTACHMENTS test 2.wav (1.51 MiB)
Try the "Mosquito Killer 4" plugin on default setting ...
Before-After MosquitoKille 4 on default.flac
(476.71 KiB) Downloaded 28 times

Re: hum

Posted: Sun Apr 01, 2018 4:51 pm
by lonepilgrim
I`m starting to get confused regarding what you`re asking me to do..when I plug my mixer in I get sound going into the computer from my mic which is plugged into the mixer...if i disconnect the mixer from the computer i cannot record at all..I get a message saying cannot open audio device.
I guess my first question should have been is it normal to have the recording indicator lights moving at all when I`m recording but with no signal going in to the computer? Again...as long as i`m recording...doesn't matter what the levels are on the mixer..the noise is still there...I turn all the levels up/down it makes no difference...when I move the record slider all the way down the noise goes away..I`m not sure where the computer mic is located on the machine..i never use it..I`ve scratched the various surfaces of the computer and have never heard so much as a click
My question..is it normal for the record indicator lights to move at all with everything hooked up normally but no sound going into the computer ? mixer volume all the way down
I`m guessing it`s some internal noise in the cheap laptop.?

Re: hum

Posted: Sun Apr 01, 2018 7:13 pm
by Trebor
lonepilgrim wrote:...I get a pretty loud background hum that I`m guessing has something to do with 60 Hz wiring ..
lonepilgrim wrote:... some internal noise in the cheap laptop.?
If you look at the spectrogram, the horizontal lines at multiples of 60Hz are due to are mains electricity,
the lines at multiples of 1000Hz originate in the computer ...
lonepilgrim's ''test 2'', Mosquito-killer, then Hum remover.png
lonepilgrim's ''test 2'', Mosquito-killer, then Hum remover.png (289.98 KiB) Viewed 511 times
The "hum remover" plugin for Audacity I used is here ... http://forum.audacityteam.org/viewtopic ... 38#p312438
hum remover seeetings used.png
hum remover seeetings used.png (11.45 KiB) Viewed 511 times

Re: hum

Posted: Sun Apr 01, 2018 7:59 pm
by lonepilgrim
ok..i`m starting to get this..as I remember I have to instal something called Nyquist to get certain effects..i have done that before but not on this computer..assuming I can do that then I download the hum removal plug in and get it on my effects list?
Should I use the settings that you posted here ?
thanks

Re: hum

Posted: Sun Apr 01, 2018 8:22 pm
by lonepilgrim
anyway im lost again...tried to download nyqest..i think..it wouldn`t stick...i tried to download the plug in..nothing happened..next question how do i get this effect on my effects list..if i can do that i should be alright..im not sure what you mean by mosquito killer..is that a different download ?

Re: hum

Posted: Sun Apr 01, 2018 9:58 pm
by Trebor
lonepilgrim wrote:...tried to download nyqest..i think..it wouldn`t stick...i tried to download the plug in..nothing happened..next question how do i get this effect on my effects list..
If you are using the most recent version of Audacity the plug-in folder is here ...

Code: Select all

C:\Users\<YourNameHere>\AppData\Roaming\audacity\Plug-Ins
After you put a copy of the ".ny" plug-in files into that folder you have to enable them in the plug-in manager before they appear on the Effects menu.

Image
Remember to click on the "OK" button below the "Enable" button to make the changes stick.
lonepilgrim wrote:.im not sure what you mean by mosquito killer..is that a different download ?
Yes that's another Audacity plugin, you can get a copy here ... http://forum.audacityteam.org/viewtopic ... 47#p327047
"mosquito" is the whiny high-pitched computer-generated noise.

Re: hum

Posted: Mon Apr 02, 2018 2:26 pm
by lonepilgrim
When I try to download the effects Adobe opens and I get a message that says "Adobe cannot open this file " what should I do next ?