Well I'm no audiophile or audioholic but if I was I would say that small speakers cannot reproduce high-quality bass sound because of
the light mass of the speaker unit, size constraints.
But you got to get past that!
Now we're talking the physics of human perception, which is the key.
Frequencies of 18-20,000Hz that a normal human can hear.
Frequencies are created by the fluctuation of air pressure caused by the movement or vibration of a
given object.Slower vibrations have lower frequencies and faster vibrations have higher frequencies
When an object vibrates, it creates mechanical kinetic energy.
This energy gets transferred to the air particles surrounding the object, creating acoustical kinetic energy.
This creates air pressure variations, which is what people hear through.
In music, the source of kinetic energy can be from electrical signals produced by instruments and song files.
This energy transforms to mechanical kinetic energy by means of a speaker,which then transforms to acoustical kinetic energy.
of speakers even down to 4 or 5 inches are used to get similar bass output. Anyone know how that works?
Why stop there you see you got to think outside the box or outside the speaker box.
DSP in this case audio encoding.
You ever heard of MPEG, Dolby AC-3 Audio encoding techniques?
Increasing the sound energy in the bass signal range is an unviable solution since the gain required
are exceedingly high and signal distortion occurs because of speaker overload.
low frequency illusion using psychoacoustic phenomena of the missing fundamental.Wich is a simple and effective signal processing method to create bass signal illusion using the missing fundamental effect.
Pitch is very subjective and is a psychophysical quantity.
For a pure tone the fundamental frequency corresponds to the frequency of the tone. The pitch is very distinctive or unambiguous
When can identify the pitch of that frequency with a pure tone.
A pitch that is produced by a set of frequency components rather than by a single frequency is called a Residue.
fundamental frequency is missing
yet will still be perceived as a residue pitch,which in this case is also called virtual pitch.
The psychoacoustic phenomenon responsible for this effect is the
"Missing Fundamental" effect, that is the pitch perception of a set of harmonics is that of the fundamental frequency.
Alternatively if we can produce
the harmonics we can perceive the fundamental frequency.
This phenomenon is used to improve the Bass frequency perception.
If we can produce harmonics for each frequency in the Bass frequency we can perceive the Bass signal psychoacoustically.
We are tricking the brain.
Electronics taught me that!
just dont bother to look at shift RPM.
