I recently bought a Chord Mojo DAC, but i am unable to get expected sample rates on my iphone using Spotify.
I am a premium Spotify customer and have the settings on my iphone set to "extreme" for download etc and have resync to ensure all music files are downloaded as Extreme
On my Mac Desktop with the same cables and Mojo attached via USB i get reasonable sample rate of 192kHz
But the same songs played on my iphone version of spofify the Mojo can only detect 44kHz
Why is theiphone version not able to output at the same rate as the desktop version ?
I have tested other application such as Onkyo which can drive FLAC 768kHz DSD so i beleive i cant be a hardware or cable problem, bit an iphone application issue ?
If anyone else has exprience or advise of why iphone Spotify application is sampling at lower rate to the desktop version it would be greatly welcomed
Solved! Go to Solution.
Hi Guys - Chord Electronics team here, we will try to give you a quick run down on whats happening.
Neither your phone or Mojo is defective, and spotify is not at fault here, it is all to do with the difference between Sample Rate (Wiki on Sample Rate) and transfer rate (Bit Rate).
Let me clear this up a little bit more, all the music you can stream currently (using any service at all, including Tidal, Spotify, Quobuzz etc) all stream at 44.1kHz. All of these will apper RED on Mojo's sample ball (or any of our products).
Now the difference between the Spotify's "extreme" and standard account is the transfer rate (bit rate), this is the rate at which the music is streamed at (or how compressed it is). So the standard is either 128kbps (kilo bits per second) or 256kbps, and the premium account offers 320kbps.
Both Tidal and Quobuzz both offer what is called CD quality streaming, this is still at 44.1kHz, but with a much higher transfer rate of 1.4Mbps (1400kbps) which is what is classified as uncompressed.
The difference may be noticable, however you are still getting the most out of your music by using a Mojo!
If you wanted to actually listen to "Hi-Res" music, so above the standard sample rate of 44.1kHz, (upto 192kHz), the only option is to buy it online, download it onto your phone, and use an app like Onkyo to listen to it.
I hope this clears things up and puts your mind at rest!