Holy cow I may have fixed it! Rather, figured out the problem.
Further to that post I read about Skype rejecting the QU digital signal without boosting. I could see the peak VU in Audacity is much lower than I see on the mixer screen. So in OBS I applied a 24db gain to the ch1 and CH2. I also have OBS set to play to my virtual null-sink. And monitor the sink. In Zoom I select the null sink’s monitor as the mic and BOOM I have sound! Oh wow! I have to vacate the venue now. I will try this setup again. If it works twice….. Richard Cooke (Sent from my iPhone) > On Jul 13, 2022, at 5:07 PM, Richard Cooke <[email protected]> wrote: > > @Sean > > I popped in to the church to get this info and try again with the analog > output cable. > > Just powered up the QU and rebooted my PC. I am trying to email from an > account I created for this pc. If that bombs I will resend from my account. > > So I did: > camera@cameras:~$ pactl list sources > > And got: > > Source #0 > State: SUSPENDED > Name: alsa_output.usb-Allen_Heath_Ltd_QU-24-01.multichannel-output.monitor > Description: Monitor of QU-24 Multichannel > Driver: module-alsa-card.c > Sample Specification: s32le 32ch 48000Hz > Channel Map: > front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7,aux8,aux9,aux10,aux11,aux12,aux13,aux14,aux15,aux16,aux17,aux18,aux19,aux20,aux21,aux22,aux23 > Owner Module: 7 > Mute: no > Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / > 0.00 dB, rear-left: 65536 / 100% / 0.00 dB, rear-right: 65536 / 100% / > 0.00 dB, front-center: 65536 / 100% / 0.00 dB, lfe: 65536 / 100% / 0.00 > dB, side-left: 65536 / 100% / 0.00 dB, side-right: 65536 / 100% / 0.00 > dB, aux0: 65536 / 100% / 0.00 dB, aux1: 65536 / 100% / 0.00 dB, aux2: > 65536 / 100% / 0.00 dB, aux3: 65536 / 100% / 0.00 dB, aux4: 65536 / 100% > / 0.00 dB, aux5: 65536 / 100% / 0.00 dB, aux6: 65536 / 100% / 0.00 dB, > aux7: 65536 / 100% / 0.00 dB, aux8: 65536 / 100% / 0.00 dB, aux9: 65536 / > 100% / 0.00 dB, aux10: 65536 / 100% / 0.00 dB, aux11: 65536 / 100% / 0.00 > dB, aux12: 65536 / 100% / 0.00 dB, aux13: 65536 / 100% / 0.00 dB, > aux14: 65536 / 100% / 0.00 dB, aux15: 65536 / 100% / 0.00 dB, aux16: > 65536 / 100% / 0.00 dB, aux17: 65536 / 100% / 0.00 dB, aux18: 65536 / > 100% / 0.00 dB, aux19: 65536 / 100% / 0.00 dB, aux20: 65536 / 100% / 0.00 > dB, aux21: 65536 / 100% / 0.00 dB, aux22: 65536 / 100% / 0.00 dB, > aux23: 65536 / 100% / 0.00 dB > balance 0.00 > Base Volume: 65536 / 100% / 0.00 dB > Monitor of Sink: alsa_output.usb-Allen_Heath_Ltd_QU-24-01.multichannel-output > Latency: 0 usec, configured 0 usec > Flags: DECIBEL_VOLUME LATENCY > Properties: > device.description = "Monitor of QU-24 Multichannel" > device.class = "monitor" > alsa.card = "1" > alsa.card_name = "QU-24" > alsa.long_card_name = "Allen&Heath Ltd QU-24 at usb-0000:00:14.0-2.4, high > speed" > alsa.driver_name = "snd_usb_audio" > device.bus_path = "pci-0000:00:14.0-usb-0:2.4:1.1" > sysfs.path = > "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1/sound/card1" > udev.id = "usb-Allen_Heath_Ltd_QU-24-01" > device.bus = "usb" > device.vendor.id = "22f0" > device.vendor.name = "Allen&Heath Ltd" > device.product.id = "0007" > device.product.name = "QU-24" > device.serial = "Allen_Heath_Ltd_QU-24" > device.string = "1" > module-udev-detect.discovered = "1" > device.icon_name = "audio-card-usb" > Formats: > pcm > > Source #1 > State: SUSPENDED > Name: alsa_input.usb-Allen_Heath_Ltd_QU-24-01.multichannel-input > Description: QU-24 Multichannel > Driver: module-alsa-card.c > Sample Specification: s32le 32ch 48000Hz > Channel Map: > front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7,aux8,aux9,aux10,aux11,aux12,aux13,aux14,aux15,aux16,aux17,aux18,aux19,aux20,aux21,aux22,aux23 > Owner Module: 7 > Mute: no > Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / > 0.00 dB, rear-left: 65536 / 100% / 0.00 dB, rear-right: 65536 / 100% / > 0.00 dB, front-center: 65536 / 100% / 0.00 dB, lfe: 65536 / 100% / 0.00 > dB, side-left: 65536 / 100% / 0.00 dB, side-right: 65536 / 100% / 0.00 > dB, aux0: 65536 / 100% / 0.00 dB, aux1: 65536 / 100% / 0.00 dB, aux2: > 65536 / 100% / 0.00 dB, aux3: 65536 / 100% / 0.00 dB, aux4: 65536 / 100% > / 0.00 dB, aux5: 65536 / 100% / 0.00 dB, aux6: 65536 / 100% / 0.00 dB, > aux7: 65536 / 100% / 0.00 dB, aux8: 65536 / 100% / 0.00 dB, aux9: 65536 / > 100% / 0.00 dB, aux10: 65536 / 100% / 0.00 dB, aux11: 65536 / 100% / 0.00 > dB, aux12: 65536 / 100% / 0.00 dB, aux13: 65536 / 100% / 0.00 dB, > aux14: 65536 / 100% / 0.00 dB, aux15: 65536 / 100% / 0.00 dB, aux16: > 65536 / 100% / 0.00 dB, aux17: 65536 / 100% / 0.00 dB, aux18: 65536 / > 100% / 0.00 dB, aux19: 65536 / 100% / 0.00 dB, aux20: 65536 / 100% / 0.00 > dB, aux21: 65536 / 100% / 0.00 dB, aux22: 65536 / 100% / 0.00 dB, > aux23: 65536 / 100% / 0.00 dB > balance 0.00 > Base Volume: 65536 / 100% / 0.00 dB > Monitor of Sink: n/a > Latency: 0 usec, configured 0 usec > Flags: HARDWARE DECIBEL_VOLUME LATENCY > Properties: > alsa.resolution_bits = "32" > device.api = "alsa" > device.class = "sound" > alsa.class = "generic" > alsa.subclass = "generic-mix" > alsa.name = "USB Audio" > alsa.id = "USB Audio" > alsa.subdevice = "0" > alsa.subdevice_name = "subdevice #0" > alsa.device = "0" > alsa.card = "1" > alsa.card_name = "QU-24" > alsa.long_card_name = "Allen&Heath Ltd QU-24 at usb-0000:00:14.0-2.4, high > speed" > alsa.driver_name = "snd_usb_audio" > device.bus_path = "pci-0000:00:14.0-usb-0:2.4:1.1" > sysfs.path = > "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1/sound/card1" > udev.id = "usb-Allen_Heath_Ltd_QU-24-01" > device.bus = "usb" > device.vendor.id = "22f0" > device.vendor.name = "Allen&Heath Ltd" > device.product.id = "0007" > device.product.name = "QU-24" > device.serial = "Allen_Heath_Ltd_QU-24" > device.string = "hw:1" > device.buffering.buffer_size = "1048576" > device.buffering.fragment_size = "524288" > device.access_mode = "mmap+timer" > device.profile.name = "multichannel-input" > device.profile.description = "Multichannel" > device.description = "QU-24 Multichannel" > module-udev-detect.discovered = "1" > device.icon_name = "audio-card-usb" > Ports: > multichannel-input: Multichannel Input (priority: 0) > Active Port: multichannel-input > Formats: > pcm > > Source #2 > State: SUSPENDED > Name: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor > Description: Monitor of Built-in Audio Analog Stereo > Driver: module-alsa-card.c > Sample Specification: s32le 2ch 44100Hz > Channel Map: front-left,front-right > Owner Module: 8 > Mute: no > Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / > 0.00 dB > balance 0.00 > Base Volume: 65536 / 100% / 0.00 dB > Monitor of Sink: alsa_output.pci-0000_00_1f.3.analog-stereo > Latency: 0 usec, configured 0 usec > Flags: DECIBEL_VOLUME LATENCY > Properties: > device.description = "Monitor of Built-in Audio Analog Stereo" > device.class = "monitor" > alsa.card = "0" > alsa.card_name = "HDA Intel PCH" > alsa.long_card_name = "HDA Intel PCH at 0xf7320000 irq 130" > alsa.driver_name = "snd_hda_intel" > device.bus_path = "pci-0000:00:1f.3" > sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0" > device.bus = "pci" > device.vendor.id = "8086" > device.vendor.name = "Intel Corporation" > device.product.id = "a2f0" > device.product.name = "200 Series PCH HD Audio" > device.form_factor = "internal" > device.string = "0" > module-udev-detect.discovered = "1" > device.icon_name = "audio-card-pci" > Formats: > pcm > > Source #3 > State: SUSPENDED > Name: alsa_input.pci-0000_00_1f.3.analog-stereo > Description: Built-in Audio Analog Stereo > Driver: module-alsa-card.c > Sample Specification: s32le 2ch 44100Hz > Channel Map: front-left,front-right > Owner Module: 8 > Mute: no > Volume: front-left: 17948 / 27% / -33.75 dB, front-right: 17948 / 27% / > -33.75 dB > balance 0.00 > Base Volume: 6554 / 10% / -60.00 dB > Monitor of Sink: n/a > Latency: 0 usec, configured 0 usec > Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY > Properties: > alsa.resolution_bits = "32" > device.api = "alsa" > device.class = "sound" > alsa.class = "generic" > alsa.subclass = "generic-mix" > alsa.name = "ALC662 rev3 Analog" > alsa.id = "ALC662 rev3 Analog" > alsa.subdevice = "0" > alsa.subdevice_name = "subdevice #0" > alsa.device = "0" > alsa.card = "0" > alsa.card_name = "HDA Intel PCH" > alsa.long_card_name = "HDA Intel PCH at 0xf7320000 irq 130" > alsa.driver_name = "snd_hda_intel" > device.bus_path = "pci-0000:00:1f.3" > sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0" > device.bus = "pci" > device.vendor.id = "8086" > device.vendor.name = "Intel Corporation" > device.product.id = "a2f0" > device.product.name = "200 Series PCH HD Audio" > device.form_factor = "internal" > device.string = "front:0" > device.buffering.buffer_size = "705600" > device.buffering.fragment_size = "352800" > device.access_mode = "mmap+timer" > device.profile.name = "analog-stereo" > device.profile.description = "Analog Stereo" > device.description = "Built-in Audio Analog Stereo" > module-udev-detect.discovered = "1" > device.icon_name = "audio-card-pci" > Ports: > analog-input-front-mic: Front Microphone (priority: 8500, available) > analog-input-rear-mic: Rear Microphone (priority: 8200, not available) > analog-input-linein: Line In (priority: 8100, not available) > Active Port: analog-input-front-mic > Formats: > pcm > > Source #4 > State: IDLE > Name: Source.monitor > Description: Monitor of Null Output > Driver: module-null-sink.c > Sample Specification: float32le 2ch 44100Hz > Channel Map: front-left,front-right > Owner Module: 26 > Mute: no > Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / > 0.00 dB > balance 0.00 > Base Volume: 65536 / 100% / 0.00 dB > Monitor of Sink: Source > Latency: 0 usec, configured 2000000 usec > Flags: DECIBEL_VOLUME LATENCY > Properties: > device.description = "Monitor of Null Output" > device.class = "monitor" > device.icon_name = "audio-input-microphone" > Formats: > pcm > > Source #5 > State: SUSPENDED > Name: VirtualMic > Description: Virtual Source VirtualMic on Monitor of Null Output > Driver: module-virtual-source.c > Sample Specification: float32le 2ch 44100Hz > Channel Map: front-left,front-right > Owner Module: 27 > Mute: no > Volume: front-left: 65536 / 100%, front-right: 65536 / 100% > balance 0.00 > Base Volume: 65536 / 100% > Monitor of Sink: n/a > Latency: 0 usec, configured 0 usec > Flags: HW_MUTE_CTRL LATENCY > Properties: > device.master_device = "Source.monitor" > device.class = "filter" > device.vsource.name = "VirtualMic" > device.description = "Virtual Source VirtualMic on Monitor of Null Output" > device.icon_name = "audio-input-microphone" > Formats: > pcm > > > > Richard Cooke > (Sent from my iPhone) > >>> On Jul 11, 2022, at 3:25 AM, Sean Greenslade <[email protected]> >>> wrote: >>> >> On Sun, Jul 10, 2022 at 09:41:16PM -0400, Richard Cooke wrote: >>>> On 2022-07-10 4:14 PM, Sean Greenslade wrote: >>>> You should (in theory) be able to use module-remap-sink or >>>> module-remap-source to create a virtual 2-channel sink/source using >>>> specific channels from the 32 channel one. See: >>>> >>>> https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#module-remap-sink >>>> >>>> It may require some experimentation to figure out what names pulse is >>>> assigning to each channel, since the first 8 channels are given >>>> standardized 7.1-channel names. Take a look here for the string names >>>> that module-remap-* is looking for in channel_map: >>>> >>>> https://github.com/pulseaudio/pulseaudio/blob/7f4d7fcf5f6407913e50604c6195d0d5356195b1/src/pulse/channelmap.c#L39 >>> >>> Thanks Sean! I was working on it again today, I posted the latest update to >>> another website: >>> >>> https://linuxmusicians.com/viewtopic.php?f=27&t=24713&sid=e80ee72d0f2e1b23402e32e62ca0bf6f >>> >>> In summary, I can see only two MIDI devices in the signal patch window. I >>> do not see the 32-channels of audio data that I know is there - because >>> Audacity can access it. >>> >>> So I assume I am missing something in my config to expose those channels. >>> >>> I'll read through your links too, in case the missing piece is in there. >>> >>> Part of my frustration is I can only see the QU when its powered up. The >>> streaming PC is on all the time, but we cannot leave the QU powered up >>> because of the main power amps. Bad things could easily happen if I play >>> around with signals while the whole system is live! Or while left >>> unattended. >> >> I re-added the mailing list, although this is perhapes straying away >> from a pulse-specific discussion. >> >> You mention "Catlia" in your forum post, which I assume is a typo. There >> are two similar programs in the KXStudio lineup, "Catia" and "Carla". >> I'm assuming you're using catia, which is a patchbay for the JACK audio >> server. JACK is similar to Pulseaudio in that it is a sound routing >> engine and not a direct soundcard driver. In Linux, the soundcard driver >> is ALSA. Both JACK and Pulse make use of ALSA to interact with the >> hardware sound devices. Generally speaking you would only use one sound >> server. Although there are ways to run both simultaneously and to route >> audio between the two, that's definitely an advanced setup. >> >> Note that Catia cannot control Pulseaudio at all, and while Carla >> technically has the ability to use Pulse as its backend, it doesn't >> expose the Pulse sources / sinks in a useful way to provide the type of >> routing you're looking to do. >> >> From your screenshot, it appears that JACK has not taken control of the >> ALSA device for your 32-channel mixer, or it's not configured correctly >> to detect and expose the full channel count. You should probably find a >> JACK mailing list if you want to go down that route, although I believe >> Pulse is fully capable of accomplishing the task you laid out in your >> original email. >> >> One side note: MIDI is not the same as audio. If you're only concerned >> about routing audio signals around, you can completely ignore MIDI. >> >> To give some more concrete suggestions, can you do a fresh reboot of the >> streaming PC, turn on and connect the mixer, then run the following >> command and post its output: >> >> $ pactl list sources >> >> --Sean >>
