[GTALUG] wired headset suggestions?

Scott Allen mlxxxp at gmail.com
Mon Oct 10 19:52:12 EDT 2022


On Mon, 10 Oct 2022 at 19:08, D. Hugh Redelmeier via talk
<talk at gtalug.org> wrote:
> <https://blog.taotronics.com/headphones/headphone-sensitivity-and-impedance/>

And I will reiterate that that article, and anything to do with
impedance and sensitivity is only relevant to analogue headsets that
(for this discussion) plug into a computer or phone's headphone
jack(s).

Any audio played by a computer will have been digitised. It will then
have to be fed to a digital to analogue converter (DAC), which feeds
an analogue amplifier. The amplifier will drive the speakers in the
headset.

For analogue (headphone jack) headsets, the DAC and amplifier are in
the computer/phone and the headset only contains the speakers. For USB
headsets the DAC, amplifier and speakers are all in the headset.

Because a USB headset contains both the amplifier and speaker, you
don't have to worry about matching the speakers' impedance and
sensitivity to the amplifier. The manufacturer will have done this as
part of the design.

This is an advantage of USB headsets. Given the same digitised audio
sample, the headset will sound the same no matter what device you've
plugged it into and is feeding that audio because it's going through
the same DAC, amplifier and speakers. With an analogue headset, the
same audio sample will go through a different DAC and amplifier in
each device before going to the speakers, so it could sound different
on each device.

Once you've found a USB headset that you like, you can be sure it will
sound the same, given the same digital audio source, no matter what
you've plugged it into that's providing that source.

-- 
Scott


More information about the talk mailing list