[LAU] New DACs, perhaps 384k bluetooth, with Linux?

[Jonathan E. Brickman]

Well, my lovely Onyx Artist 1-2 is not powering up consistently, so
it's time to look for a new DAC for the Box of No Return . I did a
mid-deep survey last night, and am fascinated at the newly large
category of "headphone amplifiers", all of them USB2 or 3 and usually
driverless, some of them bluetooth, several of them (e.g., this FiiO,
this Fosi, many others) advertising bluetooth 4.2 or 5.0 and 384kHz max
sampling rates and four or five codecs I had never heard of. I'd
like to spend vaguely US$100, am willing to consider higher. I prefer
dual 1/4" mono phone jack outs, or single or dual XLR; the Peavey USB-P
would be great if it were 96kHz; but the "headphone amplifier" category
clearly goes for 1/8" stereo, not my favorite because they wear out so
easily.

I'd love to go 96kHz bluetooth if it's solid under Linux with JACK, but
my impressions thus far is that that may be a path fraught with peril
:-) I don't actually need minimum latency, I do need high
reliability. Experiences anyone? Thoughts and recommends?

[Len Ovens]

I'd love to go 96kHz bluetooth if it's solid under Linux with JACK, but my
impressions thus far is that that may be a path fraught with peril :-) I don't
actually need minimum latency, I do need high reliability. Experiences anyone?
Thoughts and recommends?

Bluetooth means Pulseaudio as there is no bluetooth alsa driver. If this
doesn't trouble you, it may work ok.

--
Len Ovens
www.ovenwerks.net

[Jonathan Brickman]

Is there an easy JACK-->Pulse bridge capability? I think I tried it once
not knowing what I was doing.

J.E.B.

Post by Jonathan E. Brickman

Post by Jonathan E. Brickman
I'd love to go 96kHz bluetooth if it's solid under Linux with JACK, but

my

Post by Jonathan E. Brickman
impressions thus far is that that may be a path fraught with peril :-) I

don't

Post by Jonathan E. Brickman
actually need minimum latency, I do need high reliability. Experiences

anyone?

Post by Jonathan E. Brickman
Thoughts and recommends?

Bluetooth means Pulseaudio as there is no bluetooth alsa driver. If this
doesn't trouble you, it may work ok.
--
Len Ovens
www.ovenwerks.net
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https://lists.linuxaudio.org/listinfo/linux-audio-user

[Paul Davis]

Post by Jonathan Brickman
Is there an easy JACK-->Pulse bridge capability? I think I tried it once
not knowing what I was doing.

at least two such bridges.

easy is in the eye of beholder. there have been many attempts both on this
mailing list and elsewhere to describe how to use either:

1) alsa-loopback
2) Pulse's own JACK audio sink and source modules

[Chris Caudle]

Post by Len Ovens
Bluetooth means Pulseaudio as there is no bluetooth alsa driver.

Every Bluetooth variant I have seen also involves some lossy codec in the
path which adds latency and reduces audio quality. You also have to worry
about pauses in the audio flow if new Bluetooth devices turn on in close
proximity and start querying for known Bluetooth partners. I would not
want it anywhere in music or audio production with the possible exception
of occasionally headphones if I needed to move around a room without
tripping over cables. You can buy a plug-in dongle for that which appears
to the OS as a USB audio device.

[Paul Davis]

Post by Chris Caudle
I would not
want it anywhere in music or audio production with the possible exception
of occasionally headphones if I needed to move around a room without
tripping over cables.

that appears to be what he's thinking of: " did a mid-deep survey last
night, and am fascinated at the newly large category of "headphone
amplifiers", all of them USB2 or 3 and usually driverless, some of them
bluetooth,