In our Audio ABC, we offer you easy-to-understand glossary articles on key terms and topics from the world of hi-fi - compact, informative and ideal for deepening your knowledge of sound, technology and devices.
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The balance refers to the distribution of the sound between the left and right audio channels. It makes it possible to either center the sound in the middle or shift it more to the left or right channel. A balanced balance means that the sound is evenly distributed between the channels, while an unbalanced balance leads to a stronger emphasis on one side. The balance setting is useful to ensure that the sound is reproduced evenly and symmetrically, especially with stereo audio sources.
Banana plugs are practical connectors for loudspeaker cables that enable a simple and secure connection. They have a banana-shaped metal sleeve that is open at one end and is connected to the end of the cable. At the other end there is a pin that is inserted into the corresponding connection. Banana plugs provide a simple and secure connection between speakers, amplifiers and other audio devices as they ensure a firm and reliable connection and allow easy installation.
In audio, a common abbreviation for frequency band, used to describe the range of audible frequencies that can be reproduced by an audio device. It is often measured in Hertz (Hz) and usually ranges from 20 Hz (low bass) to 20,000 Hz (high treble). An extended frequency band allows for wider sound reproduction and more detailed sound quality.
Bass refers to the lowest range of the audible sound spectrum. It is the low notes that give a piece of music or sound richness and depth. Bass is often produced by low-frequency instruments such as bass guitar, double bass or bass drum and can have both rhythmic and harmonic functions in music. A good bass provides a solid foundation and can significantly influence the sound of a piece of music or an audio recording.
A bass reflex box is a special type of loudspeaker enclosure designed to amplify and extend the bass range. It contains one or more tubular openings called bass reflex tubes or ports. These ports allow the speaker to move additional air and increase the bass level by specifically influencing the resonant frequency of the system.
The term "beats per minute" (BPM) refers to the number of musical beats per minute. It is a unit of measurement used to describe the tempo or speed of a piece of music. A higher BPM value indicates a faster tempo, while a lower value indicates a slower tempo. DJs and musicians use BPM to mix songs or select the appropriate tempo for their music.
Bi-amping is a technique in which a loudspeaker is operated with two separate amplifiers. The different frequency ranges of the audio signal are split and amplified separately. This enables more precise control over the individual frequency ranges and can lead to improved sound quality. However, bi-amping requires speakers that have the appropriate connections and internal crossovers.
Bi-wiring is a cabling method in which speakers are connected to the amplifier using two separate cables. The high and low frequency ranges of the loudspeaker are transmitted separately. This should enable improved sound quality and more precise reproduction.
The bit rate refers to the amount of data that is transmitted per second. It is often used to describe the quality of audio or video content. A higher bit rate usually means better quality, but also requires more storage space or bandwidth.
Bluetooth is a wireless communication technology that enables devices to exchange (audio) data with each other over short distances. It is often used to connect cell phones, speakers, headphones and other electronic devices. Bluetooth enables a convenient and wireless connection between different devices.
Enables wireless communication in two directions. A receiver can act as a transmitter at the same time, so that it can receive audio signals via Bluetooth and transmit them simultaneously, for example to Bluetooth headphones.
Hum refers to a low-frequency noise that is often perceived as a continuous buzzing or vibration. It can have various causes, such as electrical faults, earthing problems, mechanical vibrations or problems with audio sources. Humming can be annoying and in some cases may indicate an underlying technical problem.
A function in audio equipment that allows a specific component or part of the signal path to be bypassed in order to pass the signal directly without affecting it.