Earphones, or headphones, work similarly to speakers in that they turn electrical energy into sound by using magnetism and the vibration of air. While a large speaker vibrates the air in the space around it to create sound, a pair of earphones only vibrates the air inside the ear canal. Earphones are usually designed as either closed-back or open-back, which affects how much sound can escape from them.Continue Reading
A pair of closed-back earphones is sealed in the back to limit how much sound escapes when they are being used. Closed-back earphones also minimize the amount of sound that leaks to the outside, reducing sound pollution around the user.
Open-back earphones are open at the back, allowing some air and sound to escape. In some cases, open-back earphones have better sound quality, but it is at the cost of increased sound pollution. Open-back earphones also allow ambient noise to leak into the user's ear canal.
Smaller sizes of earphones can also be fitted with noise-cancelling, soft foam earpieces that completely cover the ear canal. This method of passive noise reduction eliminates any noise escaping from the earphones to the surrounding area while isolating the user from any ambient noise leaking in.Learn more about Audio Equipment
The equipment required for a music studio includes a recording device, a microphone, monitor speakers, headphones, an MIDI controller or synthesizer, cables and an audio interface. These are several of the basic tools needed to build a professional-quality studio. The recording device is generally a computer with a built-in sound card. Sequencing software is required to record audio from a microphone, to mix tracks, add effects and export files.Full Answer >
Popular McIntosh Labs audio products include speakers such as the LCR80 loudspeaker system and headphones such as the MHP1000 headphones. Other McIntosh Labs audio products include receivers, amplifiers and CD players.Full Answer >
A digital to analog converter is a device that converts audio from a digital signal into an analog signal so the information can be channeled through headphones and speakers. A computer's sound card contains a DAC.Full Answer >
Active noise-canceling headphones both play sound and block ambient noise. The headphones combine a noise-blocking structure with a system that erases lower-frequency sound waves by generating a sound wave identical to the incoming sound, but flipped 180 degrees out of phase. The system may reduce noise by 20 decibels.Full Answer >