Stacato audio on DVSM
OK, let's leave it that way for now.
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stop AMBEServer edit Analog_Bridge.ini [DV3000] ; address = 127.0.0.1 ; IP address of AMBEServer ; rxPort = 2460 ; Port of AMBEServer address = /dev/ttyUSB0 ; Device of DV3000U on this machine baud = 460800 ; Baud rate of the dongle (230400 or 460800) serial = true ; Use serial=true for direct connect or serial=false for AMBEServer restart Analog_Bridge an retest
On 8/27/2020 12:01 PM, Derek William
Haden wrote:
Booted to console as you asked.
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Do you have results from my last request? If so, I have one more
thing to look at.
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Steve N4IRS
On 8/27/2020 12:01 PM, Derek William
Haden wrote:
Booted to console as you asked.
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Derek William Haden <facebook@...>
So basically cutting out the middle man? OK i'll look at it in the morning.
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Derek William Haden <facebook@...>
I'll look at it in the morning.
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If you have not switched over direct yet you can try one quick
thing.
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On 8/27/2020 2:40 PM, Derek William
Haden wrote:
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Derek William Haden <facebook@...>
On Thu, Aug 27, 2020 at 10:22 AM, Steve N4IRS wrote:
I have one more thing to look at.OK I'll try the none ambe server, then what?
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Leave AMBE server alone.
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Show me the output of "cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer"
On 8/27/2020 2:42 PM, Derek William
Haden wrote:
On Thu, Aug 27, 2020 at 10:22 AM, Steve N4IRS wrote:
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If not using AMBEServer works, then I suspect the serial latency is
not set for optimal.
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To verify this look at the output of: cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer If the output is 16, that is a problem. Analog_Bridge sets the for you, AMBEServer does not. If you revert to AMBEServer then before you start AMBEServer: echo 1 >/sys/bus/usb-serial/devices/ttyUSB0/latency_timer Then start AMBEServer and retest I am out in the field today, so I will not have time to work with you on this today. Steve N4IRS
On 8/27/20 2:42 PM, Derek William Haden
wrote:
On Thu, Aug 27, 2020 at 10:22 AM, Steve N4IRS wrote:
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Derek William Haden <facebook@...>
Steve
thanks for all your help so far. I too am busy for a while, so this will have to wait.
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Derek William Haden <facebook@...>
Well that works fine, disabled the ambe server and just went direct to the dongle.
using ambe-server seems a more elegant solution, as it means I can use Blue DV ambe also on another device.
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Derek William Haden <facebook@...>
When I ran "cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer"
when running ambe server it was 16 disabling the ambe server the output is 1
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As I said, we were not done yet. It does prove where the issue is.
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Put Analog_Bridge.ini back to using AMBEServer stop AMBEServer Show me the output of "cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer"
On 8/29/20 8:19 AM, Derek William Haden
wrote:
Well that works fine, disabled the ambe server and just went direct to the dongle.
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Is Analog_Bridge reconfigured to use AMBEServer?
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stop AMBEServer: echo 1 > /sys/bus/usb-serial/devices/ttyUSB0/latency_timer start AMBEServer retest.
On 8/29/20 8:21 AM, Derek William Haden
wrote:
When I ran "cat /sys/bus/usb-serial/devices/ttyUSB0/latency_timer"
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Derek William Haden <facebook@...>
OK
AB set for Ambeserver, but server not started cat returns 1 AB set for Ambeserver, Rebooted server started cat returns 16 stopped ambeserver and tried to run echo 1 > /sys/bus/usb-serial/devices/ttyUSB0/latency_timer however even with sudo I get permission denied
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Derek William Haden <facebook@...>
The DVLink image works fine, the only difference I can think of is that on the DVLink image I installed the amber server from On the DVSwitch image I used https://github.com/nwdigitalradio/ambeserver-install
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sudo -s
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echo 1 > /sys/bus/usb-serial/devices/ttyUSB0/latency_timer
On 8/30/20 4:40 AM, Derek William Haden
wrote:
OK
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Derek William Haden <facebook@...>
OK if I restart everything, from fresh reboot, with AB configured for ambe server, but ambe server not yet started. start amber server and restart AB So I am guessing that somehow the command echo 1 > /sys/bus/usb-serial/devices/ttyUSB0/latency_timer
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I don't know if you use a systemd unit file to start/stop/restart
your AMBEServer.
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If you do, You could add: ExecStartPre = /bin/sh -c 'echo "1" >> /sys/bus/usb-serial/devices/ttyUSB0/latency_timer' to the [SERVICE] stanza in the unit file that controls AMBEServer
On 9/2/2020 10:34 AM, Derek William
Haden wrote:
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Derek William Haden <facebook@...>
yes, the ambeserver is started by a systemd unit file. I am out most of day tomorrow, but will give it a try before the weekend.
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Derek William Haden <facebook@...>
I added the line To the systemd unit file and enabled the service, and all is now working fine.
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