Hi-res to iPhone?

[jonstatt]

I fear that I already know the answer to this, but is it possible to stream high-resolution audio over Bluetooth to an iOS device using Gemini? I’ve been trying different options, and it always seems to downsample to CD quality. I’ve been trying it with a new iPhone 12 Pro.

Everything I’ve searched indicates that iOS phones don’t support higher resolution over Bluetooth, but lots of the articles I found are pretty old.

Here’s Roon’s signal path to show what I’m getting:

Even CD quality is not possible over Bluetooth. Aptx is still lossy despite their marketing. Apple is restricted to AAC as far as I am aware, roughly equivalent to 250mbps mp3.

LDAC is the only format that gets really close to CD quality but claims hires performance. The Gemini doesn't support LDAC and Android is needed.

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