Jack or analogue cinch cables already provide the amplified sound signal. Via USB, so-called frames or data packets are transferred from the hard disk to the USB sound card and then converted and amplified in the speaker. The special feature of USB speakers is that they are equipped with an integrated amplifier , just like active loudspeakers, and therefore also perform the task of signal processing. A converter is integrated in each USB speaker to convert the digital signal for the amplifier into an analogue one.
You can also connect multi-channel systems via USB, provided the sound card supports the corresponding number of channels. In this article , we explain how speakers generate sound from electrical voltage. Peter White The Sounddeck is brilliant! Universal Serial Bus, or commonly referred to as USB, as the name suggests, is a common interface that allows communication between devices and a personal computer. Because most of the functions of the sound card are moved to the speakers in a USB setup, raw digital audio signals flow from the system out the USB port to the speakers where it gets converted to analog audio.
Bluetooth speaker is a type of wireless speaker that receives audio signals using RF waves rather than over audio cables. In the last couple of years, Bluetooth speakers have gone from an interesting option to mainstream.
But the quality of audio can vary from USB to Bluetooth speakers. Bluetooth speakers are basically loudspeakers that work with your Bluetooth-enabled devices. They are totally wire-free aimed at improving convenience and comfort of listening music on-the-go. With Bluetooth, things get much easier, and Bluetooth speakers are no exception.
Unlike the regular speakers which are connected via cables, Bluetooth speakers are truly wireless meaning there are no cables and no cables means no unnecessary clutter. Today Bluetooth speakers come in a range of form factors such as rectangle, cylindrical, and so on. Bluetooth speakers, however, need to be paired with another Bluetooth device for them to play music. They simply connect to your system like a USB flash drive — they are immediately recognized as soon as you plug it into the port.
Bluetooth, on the other hand, is the most used technology used for wireless audio connection, mostly Bluetooth speakers and headphones. Unlike the USB speakers, the Bluetooth speakers are connected wirelessly with no wires or cables. Raw digital audio signals flow from the system out the USB port to the speakers where it gets converted to analog audio. Bluetooth, on the other hand, is a wireless communication technology that use radio frequency waves to connect with other Bluetooth enabled devices such as laptop, smartphone, etc.
Bluetooth speakers use the same signal frequency range as that of cordless telephones. Bluetooth speakers usually consume less power but that depends on the form factor. There are ultra-portable Bluetooth speakers which are easy to carry and consume very less power compared to the semi-portable ones which are definitely not pocket-friendly and consume significant power, especially the big sound bars with 2.
Depending on the battery, they can run effectively from 8 — 12 hours. The ultra-portable speakers are the way to go, for the ones who regularly do trekking and camping because they are easy to carry and they fit right into your bag. And the best part, it does not take much to pair the two devices and start streaming audio.
That said, larger speakers that get their power from the wall rather than from your computer's USB port will always sound better. If you're looking to boost your sound quality in your home, dorm room, or office, go with a USB audio module like the ones listed here on CNET disclosure: I worked at CNET from to and then connect those to powered speakers or your sound system of choice. It's a great conversation piece, and sounds great too, although it's definitely for the desktop at 5 watts per channel for powering speakers you can also use headphones.
More practically-minded folks will want to stick with the less-expensive and still great-sounding digital options listed here. Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. Discussion threads can be closed at any time at our discretion. Make the most out of your computer's USB audio port Your USB audio port can be surprisingly useful--giving you even better sound than your computer's regular audio output.
Eliot Van Buskirk. So why would you want to use USB Audio instead of your computer's regular input? Courtesy of Glow Audio That said, larger speakers that get their power from the wall rather than from your computer's USB port will always sound better.
Discuss: Make the most out of your computer's USB audio port.
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