Questions tagged [noise]

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27 questions with no upvoted or accepted answers
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4
votes
2answers
323 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
232 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
123 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
3k 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
24 views

How Do I Reduce Noise Floor in a Booth With No EQ

I need to submit a raw recording to an audio engineer with no editing for a demo. The noise floor of my recording must be at least -40 RMS. When I do not speak, the RMS is at -60 but when I do speak, ...
1
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0answers
42 views

Is the microphone's self-noise the main source of background noise in a quiet room?

I am preparing a DIY home recording studio. I did four experiments a new Samson C01U plugged into a Mac computer and recording into Audacity. I recorded background noise in one room without furniture ...
1
vote
1answer
36 views

USB noise from my Audio interface

I have a new Mackie Onyx 2x2 running into a Win 10 pro Intel i5-2500K CPU @3.30 Ghz w 8 gig ram, running Cubase 10 elements. I have terrible noise via the usb connection to my PC. I have tried various ...
1
vote
1answer
549 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 ...
1
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0answers
92 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
67 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
1answer
24k 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
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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
2answers
199 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 ...
1
vote
1answer
363 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 is ...
1
vote
2answers
115 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
37 views

Static of death. Is the microphone or the sound card the problem?

I have an old Line6 Toneport UX2 and a Studio Projects C1 MkII large diaphragm condenser microphone that I haven't used in a long time (8yrs+). I just bought my dream guitar and thought I might do ...
0
votes
1answer
42 views

High pitched noise in my condenser mic

I am having a high pitched voice in my microphone wherever I speak and am quite troubled by it. I read some similar questions to this problem but still haven't find a solution for it. When I plugged ...
0
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0answers
39 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
1k 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
84 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
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0answers
23 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
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0answers
47 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
265 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 - ...
0
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1answer
64 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
67 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
134 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 ...