Just setup a new private server, hoping to create a virtual rehersal room for several bands/groups. Easy peasey, and good results/latency. But...
Upon connecting to the new server, my signal comes back to me with a seeming chorus effect, not a flat signal. Reverb is off (slider all the way down) in the Jamulus client. ??
No effects are added by the mixer. (Yes, I've also tested with direct input of the mic through the Scarlet ;-)
Have yet to try other participants, as I'd like -not- to drag those luddites through much of the debugging process.
Any light anyone can shed??? Thanks much.
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You get a chorus effect if the same signal is mixed to itself but with a slight timing offset. Maybe at some point of your analog/digital signal path you are mixing the signals. E.g. a sound card usually has a direct/USB knob or similar things. Sometimes you get a loop somewhere.
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Thanks for your quick postback, Volker!
That would make sense, and had been my first thought---particularly with the mixer in the analog path. But...
The only switch I see in my analog path (mic direct into the Scarlett) is a "Direct Monitor" switch...which has no effect on what I'm hearing. Could there be a "virtual switch" somewhere in the Jack setup, or the Jamulus client? Or the cmdline on the headerless server instance. ... I know, I'm groping here.
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Tom, if you use qjackctl or Carla or some other way of controlling the Jack audio connections graph, sometimes there will be a connection made directly from the system capture device to the system playback device. This is effectively software monitoring. You can just delete those connections to fix it. You basically want audio flowing audio_capture_device -> jamulus -> audio_playback_device.
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Ok. And also, Arrrggh. It seems like the issue is with the Focusrite 2i2.
Regardless of whether I take the return signal from the plugs on the back, or the headphones jack, I get the slight chorus.
Here is my jack connections display:
And here my Jamulus Settings
If I record a track through Ardour / Jack however, I hear the chorus / delay when recording. When I play it back however, it gives me the proper, flat signal. So it seems to be just the monitoring effect. Listening more closely, I can detect a slight increase in the effect with the Focusrite's "Direct Monitor" switch flipped on.
This is not really a deal breaker, as it seems likely that what the other people in the Jamulus session will in fact be hearing is my clean signal (based on the Ardour experiment above). But it's not as great an experience for me playing.
Is anyone else running the Focusrite / Jack combo out there and having had and resolved similar???
Thanks for any light.
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Hmm. It appers the 'image' insertion is nor really supported on this platform, as I tried to pass two pics scraped from my desktop and posted on the web.
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Just setup a new private server, hoping to create a virtual rehersal room for several bands/groups. Easy peasey, and good results/latency. But...
Upon connecting to the new server, my signal comes back to me with a seeming chorus effect, not a flat signal. Reverb is off (slider all the way down) in the Jamulus client. ??
Server:
Linode Standard/Debian 9
50 Mbps in/out advertised
git Clone 3.5.3
Headerless
Client
Corei5 / Debian 9
Comcast Cable 40Mbps/7Mbps
git Clone Client 3.5.3
QJackctl
Scarlette 2i2
Bheringer UB1240FX
Sure 57
No effects are added by the mixer. (Yes, I've also tested with direct input of the mic through the Scarlet ;-)
Have yet to try other participants, as I'd like -not- to drag those luddites through much of the debugging process.
Any light anyone can shed??? Thanks much.
Should have added, monitoring through the headphone jack of the Scarlett.
You get a chorus effect if the same signal is mixed to itself but with a slight timing offset. Maybe at some point of your analog/digital signal path you are mixing the signals. E.g. a sound card usually has a direct/USB knob or similar things. Sometimes you get a loop somewhere.
Thanks for your quick postback, Volker!
That would make sense, and had been my first thought---particularly with the mixer in the analog path. But...
The only switch I see in my analog path (mic direct into the Scarlett) is a "Direct Monitor" switch...which has no effect on what I'm hearing. Could there be a "virtual switch" somewhere in the Jack setup, or the Jamulus client? Or the cmdline on the headerless server instance. ... I know, I'm groping here.
Tom, if you use qjackctl or Carla or some other way of controlling the Jack audio connections graph, sometimes there will be a connection made directly from the system capture device to the system playback device. This is effectively software monitoring. You can just delete those connections to fix it. You basically want audio flowing audio_capture_device -> jamulus -> audio_playback_device.
Thanks, Eliot! I'm new to Jack as well, so this is very valuable. I'll look at this later this morn.
Ok. And also, Arrrggh. It seems like the issue is with the Focusrite 2i2.
Regardless of whether I take the return signal from the plugs on the back, or the headphones jack, I get the slight chorus.
Here is my jack connections display:
And here my Jamulus Settings
If I record a track through Ardour / Jack however, I hear the chorus / delay when recording. When I play it back however, it gives me the proper, flat signal. So it seems to be just the monitoring effect. Listening more closely, I can detect a slight increase in the effect with the Focusrite's "Direct Monitor" switch flipped on.
This is not really a deal breaker, as it seems likely that what the other people in the Jamulus session will in fact be hearing is my clean signal (based on the Ardour experiment above). But it's not as great an experience for me playing.
Is anyone else running the Focusrite / Jack combo out there and having had and resolved similar???
Thanks for any light.
Hmm. It appers the 'image' insertion is nor really supported on this platform, as I tried to pass two pics scraped from my desktop and posted on the web.
Sorry. The images did not appear in my Brave browser instance. All good with regard to embedding images here in the board.