Score:0

Audioquest Dragonfly black green light

id flag

I have Audioquest Dragonfly Black, v1.5

It says on their website, when light is blue, it's registered on 48 khz when light is green it's 44.1 khz

When I plug it on laptop under windows, it's blue light, but when I plug it in the same laptop under Ubuntu 20.04 it's green light.

Any ideas how to get it to perform at 48k in Ubuntu 20.04 ?

Score:0
id flag

I was able to get blue light, after following tutorial "Enable High Quality Audio on Linux" from 2018 published on medium.com

I've modified original config code to fit ubuntu 20.04:

default-sample-format = float32le
default-sample-rate = 48000
alternate-sample-rate = 44100
default-sample-channels = 2
default-channel-map = front-left,front-right
default-fragments = 2
default-fragment-size-msec = 125
resample-method = soxr-vhq
remixing-produce-lfe = no
remixing-consume-lfe = no
high-priority = yes
nice-level = -11
realtime-scheduling = yes
realtime-priority = 9
rlimit-rtprio = 9
daemonize = no

into: /etc/pulse/daemon.conf

Alsa config on 20.04 is moved to: /usr/share/alsa/pulse-alsa.conf

You can copy it to pulse-alsa.conf.old and edit original file with:

with following content:

# Use PulseAudio plugin hw
pcm.!default {
   type plug
   slave.pcm hw
}

But I have figured out that original alasa config file works better for me!

To restart alsa and pulse, following command works on ubuntu 20

sudo killall pulseaudio && sudo alsa force-reload && sleep 2 && sudo killall pulseaudio && sudo alsa force-reload

Difference is very much audible, very much!

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.