Questions tagged [noise]
The noise tag has no usage guidance.
24
questions with no upvoted or accepted answers
4
votes
2answers
212 views
How do I improve the Signal to Noise Ratio of low level signals?
I'm recording breathing sounds (inside anechoic chamber) with a MEMS microphone in a custom housing. The sound level is low; and near the noise floor of the mic, so we have a lot of input gain and ...
3
votes
2answers
215 views
Recording audio from PC sound card
I am trying to use the sound card in PC 1 as a synthesizer from PC 2, which sends MIDI commands to PC 1 through Ethernet, which is not a problem. The problem appears when I connect line out to the ...
2
votes
1answer
90 views
Trying to create a DAB radio garbled audio effect
(Previously posted in Amateur Radio: https://ham.stackexchange.com/questions/7335/how-does-dab-radio-garbled-noise-come-about )
I've been fascinated by my digital/DAB radio lately, whose placement in ...
2
votes
0answers
2k views
Help me understand Class-D amplifier intrinsic noise
Introduction
I've recently entered the prosumer/pro audio market by buying JBL LSR305 studio monitors and noticed that the tweeters produce constant high-pitched noise (most people apparently call it ...
1
vote
0answers
77 views
Can anyone identify the source of these recording artifacts?
I have a setup with a pair of high-frequency (200k) ultrasonic microphones which I am trying to run from a Raspberry Pi Zero. The microphones are attached to a USB hub, and both the hub and the Pi ...
1
vote
0answers
66 views
Subtle high-pitched tone from Samson C02
I'm wanting to use a Samson C02 going into a Zoom R24 to dabble a bit in recording music, gameplay commentary, and other miscellaneous things. However, whenever I use the mic, there's a rather quiet ...
1
vote
0answers
18k views
Condenser Mic - Constant white noise (hiss), can't get rid of it
I've been reading through the posts and learning a lot. Thank you all for sharing and helping!
I'm new to recording and I just set up my recording system to do voice overs and audio books.
Here is ...
1
vote
0answers
32 views
static in my video sound
I am getting static sound on my video playback. I have my computer and camcorder going into a manual switcher and out of the switcher to a monitor on the wall. The static occurs when I have my HDMI ...
1
vote
1answer
300 views
USB microphone introduces buzzing after a few minutes of listening
Preamble
I recently bought a new AT2020 USB condenser microphone. Tossed up going with the XLR and getting a dedicated interface, but I'm not a sound engineer - I'm a computer programmer - and this ...
1
vote
2answers
113 views
Is there a minimum repeating length of noise that we stop perceiving as repetitive?
When I hear white/pink noise looped I can tell that it's being looped, and pick out parts of it even if it's repeating every few seconds. I was wondering if there's a length of noise that we won't ...
0
votes
1answer
18 views
Sound noise reduction
I'm currently working on an engine record and I try to remove an "air" sound with Audacity. I've tried high pass filter and then noise reduction, here the original sample and the edited sample. But I ...
0
votes
0answers
32 views
Very loud static and buzzing noise, Behringer UM2 Audio Interface + AT2020. Microphone not working
I don't have much knowledge about this subject so bare with me.
I have a AT-2020 Microphone and a Behringer UM2 Audio Interface. I have direct monitor enabled and plug in my headphones to the audio ...
0
votes
0answers
50 views
Synth USB connection -> high pitch noise in audio
I have 3 devices (see image):
laptop
synthesizer
ZOOM H1 recorder
The recorder is connected to laptop through USB and works as a digital audio interface. I use it to record sound from the ...
0
votes
1answer
27 views
Is it possible to remove a whistle-like noise from audio?
The speech has whistle-like noises. We can clearly see that the whistle-like noise looks different from other parts of the voice. I searched Google for removing hissing (I don't know the correct term ...
0
votes
1answer
26 views
i have a 48 volt Innogear phantom power that is causing a thumping noise to be in my recording
so I have had an innogear preamp for about a year now and it is in great condition but it's causing my recordings to have a thumping noise in it I don't know what to do should I toss it and buy a new ...
0
votes
0answers
22 views
“seawave” noise on the right channel of a line array sound system
I work in that community center for almost a year now. Without any warning and only when there is no input source on, you can hear a "seawave" kind of noise on the right channel of a line array sound ...
0
votes
1answer
226 views
Behringer C1-U Microphone Static Noise In Background
So I got my Behringer C1-U Microphone for my birthday on the 19th of November, and the Microphone has been amazing since just recently, all of sudden there has been a super annoying static sound in ...
0
votes
0answers
46 views
Solving strange effects in audio waveforms
I have generated two similar audio waves, but one of them is presenting some strange effects when played. I have attached both files:
Original Audio
FilteredAudio
They are both PCM 16 bits little ...
0
votes
0answers
262 views
ZoomH4n - Some kind of an answer…
After recording again and being puzzled again by the levels on my Zoom H4n, I googled a bit and found this awesome handheld recorder shootout:
"Noise floor of the on-board mics and mic-inputs - Zoom ...
0
votes
1answer
59 views
How to add Decibels?
I have just started studying Audio Engineering and I have come across a section where I need to add decibel levels together.
I am aware that adding two decibel levels together will always give you ...
-1
votes
2answers
49 views
Why do so many tracks have an insanely high noise floor / white noise?
A lot of tracks have very loud white noise, and it's often very easy to hear at the beginning of tracks before it actually starts. The noise usually gets stupidly noticeable and annoying if listened ...
-1
votes
3answers
2k views
Can you help identify this sound effect?
Can any of you help me identify this sound effect?
https://instaud.io/1GDq
You help is strongly appreciated.
Cheers!
-1
votes
2answers
460 views
Bandpass filter using SoX
To limit the audio file input.wav containing noise mixed with a pure 1000 Hz frequency sinusoidal tone to 995-1005 Hz, using SoX :
sox input.wav output.wav sinc 995-1005
However, the volume changes ...
-3
votes
1answer
80 views
Help with amplifying voice on a call recording
I recorded a market research interview using ACR recorder on my andriod. I can hardly hear the person on other side when I play the recording. Tried amplifying through Audacity, using compressor ...
