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Radsone EarStudio ES100

Discussion in 'Portable Headphone Amps' started by m4rkw, Dec 12, 2017.
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  1. Cevisi
    This is the same whit all bluetooth adapters i have i think the problem is on the android side
  2. Broquen
    Not all of them but your right, it has to do with Android and not ES100.
    On the other hand, when you select 990/909 kbps be aware that connection is much weaker than in adaptive, due to data load on the Bluetooth transmission and LDAC behavior. Plus some devices reset it to adaptive when connection is not good, like Sony WH-1000XM3, but ES100 does not.
  3. arbiter76
    my preciouusssssssssssss.
    DAP1MP13, Mouseman and Marco Angel like this.
  4. jsmiller58
    Not sure I understand... when I start up my ES100 the app on my Android phone it always reports I have 96Khz/24bit. I don’t have to set anything.
  5. bbnn
    For what it's worth I'm on a 7t on Android 10. And I did an experiment, it still resets to 44.1k even if I leave es100 on. Maybe it just resets to default when theres no audio output over bt after x time?

    Edit: it's actually only defaulting back to 44.1 everytime I manually skip a song. So it will stay 96k if i just let it be

    On another note would this be a problem of I go wired mode? As in I connect the dac to my phone and use it as a USB dac? Cause I'm kinda confused by the USB dac mode in the settings it says it defaults to 44.1k/16bit? Or does it automatically adjust depending on the file?

    Mine unfortunately defaults to 24bit/44.1k
    Last edited: Nov 17, 2019
  6. jsmiller58
    In Settings, is your phone’s Bluetooth connection to ES100 set to highest quality or best connection?
  7. Cevisi
    I think we should ask google about that
  8. bbnn
    Unfortunately I can't set it to the highest audio quality it keeps reverting back to adaptive regardless
  9. endless.skai
    Sorry, can you guide me how/where you change the bitrate settings in an Android? Thanks in advance!
  10. bbnn
    For my phone it's under developer settings which is a 7t, you'd have to Google for your specific phone
    endless.skai likes this.
  11. endless.skai
    Found! Many thanks!
  12. Chupi383
    Odd. I have the opposite problem. My phone, a Samsung Galaxy S7 Edge, always defaults to LDAC 24 bit 96 kHz. I often change it to 24 bit 44.1 kHz because almost all my source audio is 16 bit 44.1 kHz and upscaling to 96 kHz seems like it should be both imperfect and a waste of battery. I would set it to 16 bit, but LDAC doesn't seem to support this and upping the bits per sample is trivial and lossless anyway.
  13. ClieOS Contributor
    LDAC, as per Sony's design, will always resample any incoming signal to 24/96 by default before transmission. I am surprised that Samsung even let you change the sampling rate at all.
  14. Chupi383
    Odd. The developer options always default to 32 bit 96 kHz, but according to the ES100 app it delivers 24 bit 96 kHz. After changing the options to 16 bit 44.1 kHz, the ES100 reports 24 bit 44.1 kHz. So it forces 24 bit but allows changing sample rate.
  15. smith
    Anyone know when the mk2 version will be available on amazon UK....
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