[LAU] Affordable well-working USB interface with low latency at 48kHz?

David Kastrup dak at gnu.org
Mon Nov 23 13:32:47 CET 2020

Giso Grimm <gg3137 at vegri.net> writes:

> Dear all,
> On 23.11.20 02:03, David Kastrup wrote:
>> "Jeanette C." <julien at mail.upb.de> writes:
>>> Nov 22 2020, David Kastrup has written:
>>> ...
>>>> So I am lacking a reasonably solid recommendation of (possibly older but
>>>> reasonably quality) hardware with 1 or 2 mic inputs and +48V phantom
>>>> power and likely USB2.0 HiSpeed class compliant, possibly 2 headphone
>>>> outputs
>>> ...
>>> Is it worth investigating the Focusrite Scarlett interfaces? I have read
>>> here - a few weeks ago - that the 3rd generation is now supported on
>>> Linux. But the 2nd generation is still listed in some stores. The
>>> Scarlett 2i2 with two mic preamps +48V phantom power costs about 139EUR,
>>> the solo - with just one mic preamp - is less than 100 EUR . I think
>>> these smaller Scarletts used to be a favourite with RaspberryPis, as
>>> well.
>>> I don't know the latency, but many people speak very favourably about
>>> them.
> I recently measured latencies (analog to analog) for some sound cards,
> including the Focusrite Scarlett solo 3rd gen (2i2 should be the same):
> https://github.com/gisogrimm/ovbox/wiki/Soundcards
> From all the USB sound cards I tested the Focusrite Scarlett was the one
> with the shortest delay.

Very good to know, thanks!  I'll also take a look at the rest of your tests.

David Kastrup

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