I also have a powered USB2 hub. When I plugged the UAC into the hub, the input signal level dropped by half plus there was noticeable power hum. Unplugging the hub's power supply fixed the hum but not the signal level.
So it's possible the USB3 port and/or internal hub behind it has a flakey connection somewhere. I think Ralf mentioned that.
But glad you can record. The only Presonus I have here is Firewire and we no longer have anything with Firewire around.
On January 9, 2019 4:13:50 PM HST, Bob van der Poel <bob@xxxxxxxxxxxx> wrote:
Hey, me again. Back at it ... same problems :) But, I _think_ I figured out the problem ... it's the USB port. If I use the "easy to get at port", I'm using a USB3, and it creates the problem. If I use a harder to reach port, USB2, all works fine. Don't need to use pasuspender, don't need to turn off pulse audio ports, etc. Just run audacity and it all works.To recap, I'm using a Presonus Audiobox USB connected to my PC and running Audacity to do some simple recording. The USB3 port gives me scrambled recordings ... the USB2 port works fine.So, do I have a bum port or is this normal?On Thu, Dec 20, 2018 at 8:18 PM Bob van der Poel <bob@xxxxxxxxxxxx> wrote:That is strange that modifying the PulseAudio settings first makes a
difference.
All I have to go on is the man page for pasuspender, which states:
"pasuspender will suspend access to the audio devices"
Good to know that you figured out how to work around it.Not saying that one really needs to do this ... just that it worked for me today. I've not had a chance to try it a 2nd time, as they say "'tis the season to be weary", but I will next week when things settle down a bit.
> Only one more issue is that I can't adjust the gain in audacity for the
> mic.
The interface only has hardware knobs to control gain, Audacity will not
be able to change the gain of the mic preamp.I sort of figured that.Or did you mean you wanted to change the gain of the recorded track after
recording?That's easy to do and works fine.I don't recall if you mentioned what type of mic you use, the Audiobox
only has a maximum gain of 35dB. Should be more than enough for close
position on instruments with a condenser mic, would not be enough to
record a small chamber group from mid auditorium with ribbon mics. For a
mic relatively closely positioned to your saxophone that should be enough
gain available.I was doing my testing with a cheap dynamic. I'll have a go later with a condenser. I will want to use my ribbon for sax recording, but at a close distance. So, it should be fine. And, if not, I can always stick an amp (well, mixer) into the loop.The instrument input actually has more gain available, up to 50dB, so
depending on what you need using the unbalanced input might work better.That's interesting. I have a 3pin to 1/4 cable laying about. I'll give that a go and see what happens. Would this effect the quality of the signal?So much easier, for an acoustic guy like me, to not get involved in all this recording stuff :)--**** Listen to my FREE CD at http://www.mellowood.ca/music/cedars ****
Bob van der Poel ** Wynndel, British Columbia, CANADA **
EMAIL: bob@xxxxxxxxxxxx
WWW: http://www.mellowood.ca
--
David W. Jones
gnome@xxxxxxxxxxxxx
authenticity, honesty, community
http://dancingtreefrog.com
Sent from my Android device with F/LOSS K-9 Mail.
_______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
