6

I absolutely love psychoacoustics, it is the very reason I fell in love with sound to begin with, but frankly this is a very very hard question to answer. Psychoacoustics are rarely something really tangible like a sound or a certain technique. There are some cases where you can seriously point a finger at it, like the deep sine-wave in Irrèversible, the ...


4

What you are asking is impossible to determine from a spectrogram. Spectrograms indicate frequencies present, not the quality of the audio. There may be loss of fine detail in one that would barely show up on a spectrogram at all or there could be noise and artifacts introduced that would make the spectrogram look more full. Spectrograms do not ...


4

+1 to @Christian's answer. Just to build on it, it is important to remember that there are two areas of 'psycho-acoustics' in this context; things that will consciously affect the audience, and those effects which subconsciously effect the audience. Using 'conscious' affects on an audience is all to do with sound-association, where certain sounds draw ...


3

this is quite informative: http://www.soundonsound.com/sos/may00/articles/mp3.htm The gist is: as long as any signal can be represented as the sum of sine waves (Fourier's work), and as long as you can deconstruct any signal back to sine waves (FFT, DCT math), then you can use a different way of encoding just the data that's required to reconstruct an ...


3

Random data is hard to compress because it is random, data with a pattern is easy to store. Audio data itself appears fairly random at first, but in actuality there is a pattern to it. Additionally, when you allow certain details to be altered in ways that are not that noticeable to listeners, you can make it fit a pattern that is far easier/smaller to ...


2

Hey Jeremy, You might want to check out this post about sound illusions. http://listverse.com/2008/02/29/top-10-incredible-sound-illusions/ I'm not sure how you would implement any of these in a theatrical setting, but they might give you some inspiration. Also following on from Mark's post, I read somewhere that the resonant frequency of the eyeball ...


2

Suppose you want to save the following sequence of numbers: 0123456789 0123456789 You can store those numbers individually, which would be equivalent to how uncompressed .wav or .bmp works. But, if you agree on certain rules and define those in a certain format (like mp3), you can also save these numbers without explicitly writing down the value of each ...


2

This is simply the way that the brain processes sound information. It's exactly the same as listening to a violin in a dry anechoic environment and then listening to the violin in a concert hall. You still know it's a violin because the brain is able to separate the fundamental sound from the additional reflections in the room. It's the same with distortion ...


2

Do you let it play note on repeat when designing sound? I push the keyboard myself and I found that much better than let it loop the note and sculpting your sound. I often can't resist to go wild with the keyboard too, which is fun and often rewards me with desirable sound.


2

I'm not an expert in psychoacoustics, but in trying out examples such as an 800Hz tone and another (which I varied from 802Hz to 1khz) they were all distinguishable instantly, with no effort. At very close frequencies (ie 0 to about 2 Hz difference) beats were the major audible component, but above that, two pure tones are heard. The only combinations which ...


1

His wording is confusing, but he does mean that the two channels, the original and the duplicate, should be panned hard left and right. The whole point of using the Haas effect is to maintain the even levels of a mono signal, but fooling the brain into locating it either left or right. I’m not sure if you understand how the Haas effect works or not. I’ll ...


1

Best audio quality is difficult to assess objectively. What you can say from the given audiograms is (as you mentioned) that N° 3 includes more high frequencies, which is usually considered better. About the N° 2 audiogram : there's usually no benefit in transcoding a lossy file into another lossy file codec because whatever information has been lost in ...


1

not directly related to comfort levels, but you can also play with absence of sound. for example- if you play a recording of air conditioning, or similar at a low level for most of the show to establish the noise floor, and suddenly cut it out at some point then the new much quieter noise floor becomes more intense.


1

Psychoacoustic compression (mp3 for example) works by removing the parts that you don't hear. That means if there is a loud signal you won't hear a quiet signal that is shortly after. For that time you do not need to save information. Same thing frequency based. If you have a very loud frequency, then you won't hear a quiet frequency nearby. So you have ...


1

I'm not sure if this is technically psychoacoustics as it's more about how the body reacts to sound physiologically than our perception of sound. But as we are physical beings, we also resonate when subjected to sound waves of the right frequencies. Much of it is subsonic - below the frequency of human hearing. Head: about 25hz Eyeball: ...


Only top voted, non community-wiki answers of a minimum length are eligible