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Old 06-09-2021, 07:17 PM   #49
Xcacel
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Lossless DMB Albums on Apple Music

Quote:
Originally Posted by BruceW View Post
To reap the benefits of lossless audio you would need to be using wired headphones. I will not recommend any to you bc I’m not an expert and several others in this site know FAR more than me.

Anything that’s wireless so Bluetooth/airplay etc is going to lose quality you’re correct

That’s correct.
Today’s most advanced Bluetooth codecs are AptxHD Bluetooth and LDAC. They both allow for hi-res files to be streamed wirelessly between compatible devices (but not without compression).

• AptxHD Bluetooth supports audio at 24-bit/48kHz, but uses compression and has a maximum data rate of 576kbps.
• LDAC supports up to 32-bit/96kHz over Bluetooth with a data rate of 990kbps.

Both of these are lower than the data rate of CD (1411kbps) which isn’t technically HiRes.

But most of all: iPhones today do not even support these fancy Bluetooth codecs!
For example my IPhone XR supports SBC (Sub-band codec) 16-bit/48kHz.
That’s quite a bottleneck.

So, if things don’t change, and you want to get out of wires, there are two options (at least for me)

• Attach a different audio transmitter to the IPhone, like this one https://us.creative.com/p/speakers/creative-bt-w3. You can get it for 40$ on Amazon an supports AptxHD, but you need to attach the Apple camera kit first, and the whole thing becomes quite bulky. But they might be other devices around.

• Get this: https://www.whathifi.com/reviews/audiolab-m-dac-nano
It is a DAC that connects to the IPhone Bluetooth, but then it does an up-sampling of the incoming signal to 32-bit/384kHz before converting to analogue. Don’t ask me how it is possible, but it does a good job, and somehow improves the audio quality coming from the IPhone’s Bluetooth (according to my ears). I got it, and is is my solution on-the-go.

But, bottom line, if you want to get full quality you need a wired connection, so you’re right.
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Last edited by Xcacel; 06-09-2021 at 07:19 PM.
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