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It is often said that Bluetooth Audio devices have worse audio quality, then when you connect your f.e. headphones to your phone with a cable.

I don't quite understand why, as the music is stored digitally, and then only converted via a DAC.

If you send this data via bluetooth and the headphones have a good DAC, the audio quality should be the same, right?

Is it limited by the bandwidth of bluetooth?

Timothy Lukas H.
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  • Hi. Could share your sources, please? – Bebs Dec 23 '18 at 09:06
  • I don't directly have sources. At it is just daily talk. But about everyone is saying that. So maybe my question is more to get a source which explains why – Timothy Lukas H. Dec 23 '18 at 09:20
  • Considering that the audio chain can have a lot of links, and most of them can be weak, the Bluetooth channel is not necessary the weakest of them. – Bebs Dec 23 '18 at 10:23

1 Answers1

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Yes, it is the bandwidth which requires a compressed format, but the bandwidth is indirectly determined by the amount of energy allowed to allocate to transmission. Since a smartphone is not supposed to ask for a charger after supplying 30 minutes of music via bluetooth to a pair of earphones (and the hardware manufacturers have pretty tight rules here), this is not going to change without a wholly new encoding scheme.

An introduction is in Wikipedia.

guidot
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