# Questions tagged [frequency]

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### 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 ...
261 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 ...
123 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). ...
3k 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?
3k 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 ...
117 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 ...
222 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.
215 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 ...
80 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 ...
1k 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 ...
823 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 ...
1k 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 ...
220 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 ...
470 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 ...
967 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 ...
425 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 ...
134 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.
281 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 ...
3k 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 ...
333 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 ...
888 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 ...