The tag has no usage guidance.

learn more… | top users | synonyms

1
vote
2answers
60 views

What property of sound disturbs us?

I am not sure if here is the right place to ask my question. But I will ask. I want to build some kind of sound detector circuit to prevent sleeping baby from disturbances. But, it should detect ...
2
votes
2answers
43 views

How can I avoid the pop at the end of a file containing a pure frequency?

For a personal project, I need to generate a track that contains a single, pure frequency. My method for this involves generating a single tone using Audacity, and exporting the file. The wave ...
0
votes
1answer
46 views

Automatic EQ creation to get similar frequence response from two sources?

Is there some kind of plugin / tool (preferably ladspa, lv2 or at least open source) to compare two recordings of an identical source, done with two different mics & recorders and create an ...
0
votes
0answers
26 views

(Low Frequency)Beats to indicate tempo / rhythm of music?

I ask this question because I am trying to implement an algorithm to detect Beats Per Minute of Live Input Audio from Microphone. As far as I understand music, it has a (possibly varying) rhythm / ...
0
votes
1answer
181 views

Frequency distribution graphs in music

I'm quite a newb when it comes to anything audio-related but am playing with programming a spectrum-visualiser. I chunked the signal into 50 bars, each representing another frequency-band. One thing ...
2
votes
3answers
156 views

Ultrasonic microphone required

Hello i am doing a project of detecting the sounds made by pests in stored grain while eating. I know that the ultrasonic disturbances occur when the pests tear the materials during feeding. I need ...
0
votes
2answers
89 views

Programming a Vectorscope

I'm currently attempting to create a vectorscope that analyzes realtime audio in Javascript using the Web Audio API. During every cycle, the API allows access to the current frequency data and time ...
1
vote
1answer
79 views

Bubbly/Wet Sounds with FM synthesis

Here's an example: (wet/bubbly sounds all throughout, particularly in first 10 seconds) I'm wondering if anybody knows any tricks on producing these kinds of sounds, ...
0
votes
2answers
57 views

What frequencies does the master volume increase?

If standard eq knobs on a stereo boost or cut the amplitude of specific frequencies does the volume knob adjust the amplitude of all possible frequencies? Is there a range of frequencies different ...
1
vote
1answer
69 views

How to calculate our hearing frequency

If we have an object which produces sound with approx. 120 kHz (i.e. bat). And let's say that we record this sound with sample rate of 44,1 kHz (assuming that we do not know about Nyquist theorem). ...
1
vote
3answers
191 views

From simple to advanced mix techniques

In a few words, I know how to mix a fairly simple track (drums, bass, guitar, vocals...). This means that I know how to blend things together because each "instrument" is quite easy to isolate in ...
3
votes
2answers
91 views

Scales vs. Harmonic Notes

If an ambient sound is to be generated with specific frequencies, would it, in general, sound better if those frequencies are notes selected from a specific scale, or frequencies that are all harmonic ...
1
vote
1answer
306 views

How to shift frequency of whole audio file?

How can I shift the frequency of a whole audio file. So as if there was a sound at 500 Hz and I wanted to shift the audio by 50 Hz, that sound would then be at 550 Hz, and a sound at 1000 Hz would be ...
0
votes
2answers
62 views

Feedback loop frequency

Is their an average frequency range of a feedback loop. One created by a speaker and a mic to be slightly more specific.
-2
votes
1answer
253 views

List/chart of effects of frequencies on body/brain?

I'm doing research into brainwave entrainment, and similar processes, and trying to determine what different frequencies might accomplish. I'm able to find some information, like what general effects ...
0
votes
1answer
50 views

standing waves in strings

this is for my acoustics and sound lab and I am lost. please help! The length of the smallest string on a piano is about .15 m long and has a frequency of 4186 Hz. The lowest note on a piano has a ...
1
vote
2answers
68 views

Maximum frequency of monaural beat frequency?

If I am attempting to make a monaural beat from two frequencies by playing two frequencies with equal amplitudes simultaneously, what is the maximum difference I can have between those two frequencies ...
1
vote
1answer
276 views

How to do frequency or spectral subtraction of two audio tracks?

I want to know how it's possible to substract one audio track from another. Meaning that you cut out the frequency spectrum of a audio file from another. I know how the phase inversion trick used to ...
2
votes
2answers
288 views

Recipe for producing a sub bass that is both loud and rattles shelves?

The best sound I can come up with is not a sine wave, but a triangle wave. The triangle wave creates a very nice upper and lower shelf frequency that you can both hear and feel. The bad thing with ...
5
votes
2answers
136 views

What is the “level” of Frequency Modulation of many synthesizers?

I am currently working on FM synthesis and while I do understand the roles of carrier frequency, modulator frequency and modulator amplitude, I've been having problems with understanding how lots of ...
2
votes
0answers
478 views

44kHz vs 48kHz for music playback [closed]

I was wondering what's the best setting for typical music playback. Songs are encoded with 16 bit & 44kHz, but my windows 7 sound playback is set to 24 bit / 48kHz (that was the default). Does ...
4
votes
2answers
227 views

Films that push the boundaries of Sound Design?

For example in 'Irreversible', the first 30 minutes there is a underlying sound frequency of 27hz - this makes you feel physically sick and disorientates you. Do you guys know of any films that use ...
4
votes
5answers
702 views

Completely cut frequencies below a certain threshold

I'm warming up to Ableton Live by attempting to manipulate songs into how various animals would hear them. For example, idealized bats hear roughly between octave 7, starting at 1.28kHz, to octave ...
2
votes
3answers
8k views

Is bass boost harmful?

I recently bought a Sony headphone which has "bass boost", and I really love it. I love it so much that I increased the bass (low frequencies) on every device I use it on, with like 7db and decreased ...
2
votes
2answers
122 views

Frequency response of ears when covered with hands [closed]

just as in the title. Anyone know if there is some info on this available. I know its very relative as to how you cover your ears, but an approximate/median graph would be useful to me.
2
votes
1answer
255 views

Sound - for the purpose of creating vibrations

What is the best way to distribute noise from more than one source (I'm envisioning a system with many), within a dome, with the ground as its primary target, at optimal frequencies and volumes to ...
2
votes
3answers
180 views

Sound Frequency and Healing

I was wondering if anyone new about the phenomenon of frequency and brain healing. I got a call from someone who is doing an art installation and wants to use the frequency or frequencies which could ...
0
votes
4answers
704 views

Formula for the sound pressure of a pure tone

What is the formula for the sound pressure of a pure tone of 500Hz, ex-pressed as a function of time?
3
votes
2answers
166 views

How wide are critical bands?

I hope this is the most appropriate SE site to ask a question about psychoacoustics. I don't quite understand critical bands. As far as I know, if two pure tones which frequencies are inside the ...
5
votes
1answer
371 views

how can I make sounds of different frequencies appear subjectively equally loud?

I'm making an experiment where I play pure tones of three different frequencies (220 Hz, 440 Hz, 880 Hz) at 75 dB SPL. I've noticed that they don't sound equally loud, and I would like them to. I ...
5
votes
9answers
3k views

Why can cheap mics be eq to sound like expensive ones?

Other than frequency response, what makes a mic sound good? Say there is a cheap microphone, and an expensive microphone with same frequency response/selfnoise/sensitivity/polar pattern. Now we ...
1
vote
8answers
9k views

What is the frequency step formula for 10 and 31 band EQs?

What is the formula to calculate the bands ranges of a graphical EQ on a mixer? 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400Hz ... etc It seems some of them are doubles. When ...
4
votes
10answers
2k views

Un-easy frequencies used in film to create tension?

Hello soundies.. I was wondering if anyone knew an example of when a film has used a single tone frequency (or if they ever have) that sits below the mix and creates an almost subliminal 'uneasy ...
1
vote
4answers
310 views

Noise Frequency

Im just wondering, as there are lots of kinds noise that creep into our recordings. what are the typical frequencies where noise is mostly present as so I can apply filters etc.. And also, what type ...
3
votes
3answers
741 views

Is there scientific studies into certain frequencies relating to colours/light/mood?

Hello. I'm working on a little web project (I'm a web developer by trade) where it's basically a mouse controlled synth inside a browser. Nothing fancy, but it's letting me get to grips with some of ...
3
votes
1answer
247 views

International Travel with a wireless kit?

Hi guys! I'm looking to buy a wireless mic kit to use for on location recording for a upcoming documentary. The problem is that this docu is going to be shot in different locations all over the ...
0
votes
1answer
354 views

Sync audio -Harmonics of sync (not frequency)

I'm clocking in some freebie hours, re-aligning audio for a project that was butchered with plural eyes program and I'm seeing patterns of sync that remind of of the harmonics after a Fundamental ...
6
votes
2answers
2k views

Frequency and emotional response

I remember that a few months back, someone copied a link to a site that had a great display on the frequency bandwidth and what frequencies affected which emotions and what instruments and or sounds ...
6
votes
8answers
1k views

What are your favorite spectral tools?

What are your favorite software tools for spectral analysis/manipulation? And what do you use them for?