Hi David, all,
Creating a new thread as the old one was pretty long...
On 19/03/2021 15:22, David Kastrup wrote:
[...]
>> - Zoom H5 shows 4 inputs in jack: the L/R mics and the inputs 1 and 2
>
> Oh, can you just put the headphones right next to the mics (makes
> astonishingly little difference in comparison to direct connections) and
> use jack_iodelay for measuring out the latency of the H5 with your
> settings?
>
> Numbers are surprisingly hard to come by for any audio interface.
>
This is what I got by connecting jack_delay to one output and putting
the headphone right in front of the microphones (connected only one to
the jack_delay input). These are common jack settings I use or have used
with this device, although the 32 Frames is very unstable and the 64
Frames one gets a few xruns depending on what it's used with (but still
more usable). The 128 Frames settings is very stable.
SR Fr/p Avg. delay reported (ms)
------+-------+-------------------------
48000
128,2 22.7
64,3 18.7
32,3 14.2
44100
128,2 25.2
64,3 20.6
96000
128,2 22.6
64,3 18.6
88200
64,3 18.6
Hope this is useful /interesting
Lorenzo.
Hi all,
For the purposes of this discussion, I am playing guitar through an Axe-Fx
II into a Behringer UMC1820 USB rack soundcard. OS is Xubuntu Focal 20.04.
This works fine for general jamming, I can play a backing track from the
computer and use the hardware monitoring to mix in the Axe-Fx as necessary.
But when I want to record, the levels are low. I record using my Android
phone, and activate Audacity to record the guitar tracks from the Axe-Fx.
But the levels are so low, the waveform is tiny. I can apply a plugin to
increase the volume, but you can imagine the quality.
I see the same thing in the Pulseaudio Volume Control Input Devices tab, so
it's not an Audacity issue. With jackd active, the input levels are fine, I
can see them in Ardour. But I don't want to have to activate jack for more
simple stuff like this, it's a pain.
For what it's worth, the output level of the Axe-Fx is around 75%, and the
input gain knobs on the soundcard at about 25%. Any higher and the clip
lights come on when I play hard.
Any clues on how to debug / fix this? I'm suspecting a driver issue,
because there simply aren't that many moving parts.
--
https:/linkedin.com/in/antgel
https://resume.antgel.org/https://about.me/antonygelberghttps://antgel.org/
Hello,
I'm using Arch Linux (AArch64) for the first time on a Raspberry Pi 4. I
need to use HDMI sound and the first HDMI port on the pi is card 0. If I
try to use aplay to play a sound file it prints:
aplay: set_params:1343: Sample format non available
Available formats:
- IEC958_SUBFRAME_LE
I find that I can play audio through HDMI by specifying the sample
format. eg.
aplay -D iec958 mysound.wav
What I'm stuck with is trying to configure ALSA to make this
specification. I've tried the following in my ~/.asoundrc
pcm.!default {
type plug
slave {
pcm "hw:0,0"
format IEC958_SUBFRAME_LE
}
}
While this produces no Alsa syntax errors when I use aplay, it still
won't play the audio and prints:
Playing WAVE 'wav48k.wav' : Signed 16 bit Little Endian, Rate 48000 Hz,
Stereo
aplay: set_params:1343: Sample format non available
Available formats:
- IEC958_SUBFRAME_LE
Can anyone please help?
Thanks,
Iain
--
________
Iain Mott
https://escuta.org
Hi LAU,
As we're entering a 'tighter' lock-down in my area this week I will need
to attend online music lessons (bass). The suggested tool is zoom with
'original sound' option selected, but it seems this is not available on
Linux (nor in a web (chrome?) client) [1].
In the past setting the 'noise reduction' (or maybe it's echo
cancellation) to low seemed to work OK, but I'm wondering if anyone
knows of any work-arounds.
Or any other platform (Discord seems to use Opus which sounds promising).
The one used for the last LAC seemed also quite nice, but I guess that's
not free (as in 'gratis')? As zoom is the tool selected by the music
school it should also be something relatively hassle-free for the
teacher and cross-platform (i.e. assume they will not be on Linux, so no
funky stuff like having to install a Mumble server etc. :-| ... Although
the offers on mumble.com seem quite reasonable, but has anyone used it
for music?)
I _am_ already able to set-up e.g. my Zoom H5 (the device not the
software) or usb audio interface via JACK to have a decent mic/input at
the source and then pulseaudio-jack sink for audio I/O with these apps
(I actually helped my son do remote drum lessons which included piping
smplayer via jack to him locally and his teacher as well as the e-drum
line out with JACK).
But of course there's no much point in having decent quality at the
source if the software is doing funky stuff like noise reduction and
echo cancellation at the source :-|
Any suggestion welcome.
Lorenzo.
[1] e.g.
https://www.reddit.com/r/Zoom/comments/g9qu9v/original_sound_and_stereo_opt…https://support.zoom.us/hc/en-us/articles/115003279466-Enabling-option-to-p…
[2]
Hey hey,
as much as a release and a reminder, that the Euro Low Vision Song Contest is
still going ahead, deadline for songs is April 23rd.
Liquid Fire:
https://youtu.be/x7buNOpGLyE
Direct OGG download (though the video/slideshow here is part of the
presentation):
https://www.dropbox.com/s/j1vk7805oxm4xi4/liquid_fire.ogg
Yes, Katy Perry's "I kissed a girl" becamse an inspiration along the way, butr
there's more to it. :)
Instruments and plugins: Fluidsynth (electric bass), setBfree, Csound (FX,
shimmer reverb, vocoder), LinuxSampler (Csound FX, electric pianos), Yoshimi
(guitars, piano layer). Hardware: Prophet 12 (accents and strings), MiniBrute
2s (more synth accents), Behringer Neutron (synth bass, drum processing),
Rolanbd JV-1080 (basic drums).
Plugins: Fons' 4-band parametric filter (EQ), g2verb, zita-reverb (I think),
TAP TubeWarmth, stereo echo, CAPS 2x2 plate, amp and speaker models, guitarix
amp, SWH L/C/R delay, Invada Studio Compressor and possibly more.
Feedback as ever is welcome. :)
Enjoy and have a good Sunday,
Jeanette
--
* Website: http://juliencoder.de - for summer is a state of sound
* Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
* Audiobombs: https://www.audiobombs.com/users/jeanette_c
* GitHub: https://github.com/jeanette-c
When you need someone, you just turn around and I will be there <3
(Britney Spears)
Hello!
We know that hosts such as Ardour are able to control the
parameters of LV2, LADSPA, VST, etc, plugins using MIDI CCs and
possibly other automation control signals.
Is there a (free, open source) plugin out there that allows for
controlling the parameters of a plugin from another plugin? I
realize that question's a bit nebulous. I'd like to, for example,
have a plugin that exposes a MIDI input. When a NOTE ON is received on
that input, it sets the value of a parameter in a different plugin
to a given value, and when a corresponding NOTE OFF is received,
it sets the value back to something else. Similar actions could
be performed from audio signals too, with a bit of math.
Ideally I'd like to set up a pile of plugins inside Carla and route
control signals between them in various ways like this. Some plugins
explicitly expose inputs that allow for control like this, but most
don't.
I've had a look for plugins that can achieve this kind of general
control, but the search terms are so generic that it's a tough thing to
search for. It may not even be possible.
Anyone know of anything?
--
Mark Raynsford | https://www.io7m.com