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In the United Kingdom, 44.3% of the population now has a DAB digital radio set and 34.4% of listening is to different digital platforms. Because of the early success of the old DAB standard, the transition to the more efficient DAB+ takes more time. If DAB was switched off, older receivers would become worthless.
MPEG-1 Audio Layer II is the audio format used in Digital Audio Broadcast (DAB), a digital radio standard for broadcasting digital audio radio services in many countries around the world. The BBC Research & Development department states that at least 192 kbit/s is necessary for a high fidelity stereo broadcast:
The audio quality of Australian DAB is correspondingly low - only 80 kbps for ClassicFM, for example, and most channels have much lower bitrates than this. So DAB is in general well below the 128 kbps traditionally accepted as CD quality, and an interference-free FM broadcast will almost certainly provide better audio. [dubious – discuss]
The gradually phased out first generation DAB uses the MPEG-1 Audio Layer II (MP2) audio codec which has less efficient compression than newer codecs. The typical bitrate for DAB stereo programs is 128 kilobit per second or less and as a result most radio stations on DAB have a poorer sound quality than FM does under similar conditions. [40]
Bluetooth audio Yes No No Yes No LHDC: Savitech 2017 5.0.6 (2022-08-03) Non-free Mobile phones, Bluetooth headphones, Home receivers Android 10: Bluetooth audio Yes No Yes Yes No L2HC Huawei: 2020 3.0 (2023-09-19) Non-free Huawei products, EMUI, HarmonyOS: Android 10, OpenHarmony, Oniro OS Bluetooth audio NearLink audio Yes Yes Yes Yes Yes Lyra ...
In the UK, Denmark, Norway and Switzerland, which are the leading countries with regard to implementing DAB, the first-generation MPEG-1 Audio Layer II (MP2) codec stereo radio stations on DAB have a lower sound-quality than FM, prompting a number of complaints. [7]
Sound Digital is a semi-national commercial digital radio multiplex in the United Kingdom, owned by Arqiva, Bauer Media Group and News Broadcasting. The multiplex covers 73% of the population from a total of 45 transmitters.
Sound quality is typically an assessment of the accuracy, fidelity, or intelligibility of audio output from an electronic device. Quality can be measured objectively, such as when tools are used to gauge the accuracy with which the device reproduces an original sound; or it can be measured subjectively, such as when human listeners respond to ...
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