what is the anatomy behind sound creation course hero

How do speakers work with more than one driver?

Finally speakers with more than one driver, that is nearly all loudspeakers, use crossover networks of circuitry to ensure that the different drivers play the frequencies for which they are designed . For instance in a two way speaker, which is a speaker with a tweeter and one or more woofers that play the same frequency range, the crossover will filter out low frequencies before the signal reaches the tweeter and then filter out high frequencies before they reach the woofer (s). This ensures that the drivers do not waste energy attempting to reproduce frequencies that are inaudible to our ears when produced by that driver. Commonly, capacitors are used to filter out lower frequencies and a coil or inductor is used to filter high frequencies. The crossover point is the frequency when one driver’s response falls off in decibels ( dB) and another driver’s frequency response increases. You can think of the crossover point as the “hand off” of the sound from one driver to another. Using components to create an ideal crossover point for each driver is critical to ensure that the different drivers in a speaker blend together seamlessly while faithfully reproducing the full audio spectrum.

What is SPL in audio?

What is Efficiency (also known as SPL)? The efficiency of a speaker is how loud it will play, in dB, when fed one watt of power and measured from one meter away. If a speaker is 10dB higher in efficiency than another, it will play twice as loud with the same amount of power. An increase of 3 dB means it will play just as loud with half the power. Don’t mistake efficiency for quality. In fact, many good speakers, like high performance cars, are low in efficiency.

What is power handling?

What is Power Handling? Continuous power handling is only limited by how hot the voice coil can get before the glue that holds the wire begins to melt. Peak power handling refers to how big of a momentary burst (at the most troublesome bass frequency) a speaker can take. This is a somewhat tricky spec, because if a speaker is rated for 100 watts, we don’t know how long it can really sustain that power level. Also, just because a speaker can handle a large amount of power does not mean that it is better than a speaker with a lower power handling spec. Finally the power handling spec is only really important if you plan on playing your speakers at a loud volume for a long period of time.

What is a spider disc?

Spider: A springy cloth disc that keeps the voice coil and bottom of the cone from moving off to the side and focuses the coils motion in a forward and backward motion.

What is the cone on a tweeter?

Cone: The cone is connected to the voice coil and moves air to create sound waves. Most modern tweeters move air with a dome rather than a cone.

What is frequency response?

What is Frequency Response? This is usually the most reliable indicator of a speaker’s sound quality. Unfortunately, it’s also the easiest spec to manipulate given that it depends on microphone placement, room placement, how the graph of the response is scaled and smoothed, etc. If your speaker system really is +/- 3dB, that is only 3dB of deviation, from 300 Hz to 18,000 Hz in a lab condition and +/- 5 dB from 30 Hz to 500 Hz in your listening position it’s likely to be a fine sounding system indeed. If you choose to look at response graphs, keep in mind, rough peaks that are narrow in frequency range will not be as audible as graphs that have a wide frequency range that is low or elevated.

What is recommended amplifier power?

What is Recommended (amplifier) Power? This defines the manufacturer’s idea of a sensible range of amplifier (or receiver) power for their speaker. This specification is a helpful way of subjectively combining power handling and efficiency into one useful rating.