Questions tagged [noise]

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26 questions with no upvoted or accepted answers
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4
votes
2answers
268 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
219 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
107 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
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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
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0answers
88 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
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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
20k 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
316 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
114 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
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0answers
22 views

How can the power system mess up the audio?

Goal We have a Behringer X32. Everything in the mixer sound great. We try to bring its sound to a PC so we can record and stream it. Problem The audio in the PC is noisy. In indescribable, ...
0
votes
0answers
251 views

Eliminate static crackling noise when scrolling Scarlett 2i2 interface

This issue has been driving me crazy for years now to the point where I was using only single monitor for the last half year. There is a crackling noise at idle and a much more pronounced noise when ...
0
votes
1answer
34 views

Speaker Noise with PC but not with Laptop

I have a noise problem with my speakers and my PC. I've tried everything I can think of and I still can't eliminate the noise. Speakers (Yamaha HS7 x2) quarter inch jack to RCA to connect to M-Audio ...
0
votes
1answer
40 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
606 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
1answer
39 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
40 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
357 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
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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
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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
2answers
62 views

Sennheiser mke 2 and ew100 g3= cable noise. Any ideas why?

Just upgraded my me2 to an MKE2. Used with g3 wireless. The cable on the new MKE2 has the blue (attenuator or whatever that is with the serial #). I read that the blue version had more shielding for ...
0
votes
1answer
62 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
53 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
3k 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!
-4
votes
1answer
100 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 ...