Magnifi Mini Chromecast audio quality

Overall really pleased with the Mini. Great bit of kit.

My only concern is the quality of audio when streamed via the built in Chromecast. It's got that nasty high pitched digital 'ring' you used to get in the early days of MP3 when the bitrate was really low.

Things of note:
Have tried streaming from various phones (apple & android) and various services (Spotify, Soundcloud, BBC iPlayer etc)

In the Chromecast app for other ones I have around the house, you can switch on 'Full Dynamic Range' for AVR's and HiFi Systems. That option doesn't seem to appear in Google Home for the mini.

I'm connected via Ethernet.

Firmware on the mini is - 1.21.75965
System firmware: 33

Does anything need updating / tweaking?

Thanks for any help.

Comments

  • erniejadeerniejade Posts: 4,851
    edited December 2018
    How is the chromecast hooked up? Optical using the built in dac on the chromecast?

    I have used a chromecast audio optical out to a dac with great results for a 30$ streamer.
    Den: Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room: Teac AI-3000,T+A PA 1530R, Tyler Highland H2, Aries Mini, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • Hi, not quite sure what you mean. The Mini has Chromecast built in so I just connect phone for example to it and play Spotify etc.

    Interesting development is that if I play music via Bluetooth, the audio is faultless.

    Really wanting to know if the Chromecast's firmware in the speaker can be updated?
  • erniejadeerniejade Posts: 4,851
    I did not realize it was built in. I have a chromecast audio ( external unit) that has optical out. On the external unit, using the optical out to a dac sounds better vs using the 1/8" stereo out / built in dac. Your situation is different.

    Have your tried a different program like bubbleUpnp on your phone?
    Den: Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room: Teac AI-3000,T+A PA 1530R, Tyler Highland H2, Aries Mini, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • I am having the exact same problem trying to cast music to my Polk Mini via built in Chromecast. The audio quality is absolutely terrible.

    I have contacted Polk support about the issue but they seem unwilling to assist.

    I have tried different streaming apps, I've tried over WiFi and over Lan network. I have tried with different routers.

    I cant isolate what is causing the issue, but the sound quality is intermittently poor when casting.

    When playing the exact same Audio from exact same apps over Bluetooth instead of cast, the audio is flawless.

    It seems there is not a large user base trying to use the casting feature, but this is the reason I bought the unit.

    Very frustrated.
  • KennethSwaugerKennethSwauger Moderator Posts: 6,846
    Hello,
    I'll forward this to a friend at Polk for comments.
    "They thought we were too loud, but shoot, I had four army blankets folded over my amp, and the volume level was on 2. I'm used to playin' on 10!" S.R.V.
  • Hello,
    I'll forward this to a friend at Polk for comments.

    Amazing! thank you
  • KennethSwaugerKennethSwauger Moderator Posts: 6,846
    Hello,
    His response:
    "Can we confirm that they have the latest firmware (v112)?

    The bar may be receiving low quality mp3 via the streaming services for some reason or another. For Spotify, I know you can go into settings and force “high” or “very high” streaming quality. You may be able to do this for other streaming services as well, but I’d have to look into it to say for sure."


    "They thought we were too loud, but shoot, I had four army blankets folded over my amp, and the volume level was on 2. I'm used to playin' on 10!" S.R.V.
  • Hi, I can confirm that I am running latest version of firmware. It is definitely not a low bit rate. I have set spotify to highest bitrate. I have also tested with the same songs over bluetooth and aux and can confirm it's only when streaming over cast.

    I'd be happy to provide any other info, really want to get this fixed.
  • KennethSwaugerKennethSwauger Moderator Posts: 6,846
    Thanks for the information, I'll send this along.
    "They thought we were too loud, but shoot, I had four army blankets folded over my amp, and the volume level was on 2. I'm used to playin' on 10!" S.R.V.
  • Thanks
  • shnorkillershnorkiller Posts: 8
    Thanks

    Did your friend provide any feedback?
  • I am still getting nowhere with this issue. It's now been almost 3 months.

    zy1vemsp3sg2.png


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