A lot of dongles do cut off the first 0.1s FiiO KA17, Shanling UA4, iBasso DC06Pro, TempoTec Sonata BHD Pro all do. I'm pretty sure it has to do with the implementation and/or configuration of DAC automute. But: iBasso DC04Pro does not cut off anything. So if this is important to you, I...

Still cutting off the first 0.1s for me, too.

Are you sure that it is v3.22 and not v3.21? Does the app say v3.22? My app says "v3.21 the latest version". And my Google Play Store says "v3.21" as well. @FiiO Could you please comment on the app version in the Google Play Store? Is it v3.22 or v3.21 still? My Google Play Store definitely...

When will FiiO Control v3.22 be available in the official Google Play store?

This is wrong. 1) M12, M12i, M15, M15i all use ES9281AC with integrated ADC. 2) Old M12 does support microphone (but old M15 does not).

@Questyle Could you please comment on whether or not M12i and/or M15i do support in-line microphone?

added various Simgot

Simgot DEW4X does NOT support microphone. http://www.simgot.com/en/products/detail/33.html#!/detail

But how does FiiO KA17 achieve 4.5 Vrms = 12.7 VP-P (4.4mm, desktop mode, high gain) then?

You are talking about Vrms while zilax002 is asking for VP-P VP-P = 2 x sqrt(2) x Vrms

Voltage swing of FiiO KA17 is 12.7 VP-P 4.5 Vrms = 12.7 VP-P

@FiiO Could you please explain why there are 4x SGM 8261-5 amplifiers, when fiio.com states that "inside the KA17 are THX AAA 78+ headphone amplifiers"?

I'm pretty sure neither the filters itself, nor their numbering/order, did change between firmware 0.84 and firmware 0.99, only the names were completely wrong in 0.84 e.g. filter 4 always was "linear fast low-ripple", even though firmware 0.84 said "minimum slow".

To clarify: I'm pretty sure neither the filters itself, nor their numbering/order, did change between firmware 0.84 and firmware 0.99, only the names were completely wrong in 0.84 e.g. filter 4 always was "linear fast low-ripple", even though firmware 0.84 said "minimum slow". Filter names...

Ok, so no in-line controls. And in-line microphone?