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Frank C. D'Amato - KB2MXV
I have DVswitch setup DMR>Analog. It pushes a DMR TG to my Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great coming out of my DMR radio connected to a Openspot (Both ver 1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in DN mode), and connect to the TG that my DVswitch is transmitting to, the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound great on the yeasu radio, The problem is only there on the TG the DVswitch is pushing the analog audio to.
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Are you running USRPGain and TLVGain at unity? I've found it
helps a lot to turn TLVGain down quite a bit in Analog_Bridge.ini.
TLV is the gain sent from analog to digital. This will reduce the
gain to DMR from analog. More headroom isn't necessarily bad,
though you'll find that audio to your Yaesu is probably still
louder than with a DMR radio. I'm not a Yaesu-using person myself,
though I did just order an FT70 to play with, so I don't know
exactly why these differences in levels between DMR and C4FM
radios are what they are when everyone is using the same codec.
I'll let someone better qualified explain that.
Here's how I have my TLV gain set:
tlvAudio = AUDIO_USE_GAIN ; Analog -> Digital
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_BPF)
tlvGain = 0.35 ; Gain factor when
tlvAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
When playing with things a month or so ago, I was told that, on
my bridge, digital to digital (person A on DMR radio and person B
on a Yaesu) sounded OK, but audio from analog was too hot on C4FM,
but OK on analog, so I turned down the TLVGain a little. I don't
really know a better way to handle that situation. Note that in my
case, DVSwitch is not involved in making the connection between
DMR and YSF. I got the same results when using DVSwitch instead,
though.
And for USRPGain, I'm using AGC, with the threshold a little
higher than in the default configuration. This is personal
preference, but I find it works pretty well on my bridge.
usrpAudio = AUDIO_USE_AGC ; Digital -> Analog
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_USE_AGC)
usrpGain = 1.0 ; Gain factor when
usrpAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
usrpAgc = -18,10,500
toggle quoted messageShow quoted text
On 12/30/2020 12:54 AM, Frank C.
D'Amato wrote:
I have DVswitch setup DMR>Analog. It pushes a DMR TG to my
Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great coming out
of my DMR radio connected to a Openspot (Both ver 1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in DN
mode), and connect to the TG that my DVswitch is transmitting to,
the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound great on
the yeasu radio, The problem is only there on the TG the DVswitch
is pushing the analog audio to.
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Steve N4IRS
Frank,
You can control the audio level sent from or to digital. Depending
on how you change modes you can change levels on the fly.
Since you are happy with the level of DMR, I would start there since
this is what you will want to return to.
The mode command command of dvswitch.sh will take 2 optional
parameters. These parameters control the audio levels. Below is the
section from Analog_Bridge.ini:
[USRP]
address = 127.0.0.1 ; IP address of USRP
partner (Allstar/Asterisk or another Analog_Bridge)
txPort = 32001 ; Transmit USRP frames on
this port
rxPort = 34001 ; Listen for USRP frames
on this port
usrpAudio = AUDIO_UNITY ; Digital -> Analog
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_USE_AGC)
usrpGain = 1.10 ; Gain factor when
usrpAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
usrpAGC = -20,10,100 ; Set the agc threshold
(db), slope (db) and decay (ms)
tlvAudio = AUDIO_UNITY ; Analog -> Digital
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_BPF)
tlvGain = 0.35 ; Gain factor when
tlvAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
The above has usrpAudio and TLV audio set to AUDIO_UNITY. This is
the same as AUDIO_USE_GAIN with gain of 1.0
You can use dvswitch.sh mode DMR 1.0 1.0 to do the same thing.
The command is dvswitch.sh mode {DMR|NXDN|P25|YSF|DSTAR} tlvGain
usrpGain
Since your audio from Analog to YSFn is too loud, I would start by
cutting the audio sent to YSFn in half and test:
dvswitch.sh mode YSF .50 1.0
Test with this and see if you are happy with the levels.
73, Steve N4IRS
toggle quoted messageShow quoted text
On 12/30/20 12:54 AM, Frank C. D'Amato
wrote:
I have DVswitch setup DMR>Analog. It pushes a DMR TG to my
Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great coming out
of my DMR radio connected to a Openspot (Both ver 1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in DN
mode), and connect to the TG that my DVswitch is transmitting to,
the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound great on
the yeasu radio, The problem is only there on the TG the DVswitch
is pushing the analog audio to.
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I could be wrong, but it doesn't sound like Frank is actually
bridging to YSF, but rather is just crossmoding to DMR with a C4FM
radio. That being the case, there will be no separate option for
changing the TLVGain for YSF. You'll have to adjust TLVGain for
DMR audio and hope it helps without overcompensating.
toggle quoted messageShow quoted text
On 12/30/2020 6:19 AM, Steve N4IRS
wrote:
Frank,
You can control the audio level sent from or to digital. Depending
on how you change modes you can change levels on the fly.
Since you are happy with the level of DMR, I would start there
since this is what you will want to return to.
The mode command command of dvswitch.sh will take 2 optional
parameters. These parameters control the audio levels. Below is
the section from Analog_Bridge.ini:
[USRP]
address = 127.0.0.1 ; IP address of USRP
partner (Allstar/Asterisk or another Analog_Bridge)
txPort = 32001 ; Transmit USRP frames
on this port
rxPort = 34001 ; Listen for USRP frames
on this port
usrpAudio = AUDIO_UNITY ; Digital -> Analog
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_USE_AGC)
usrpGain = 1.10 ; Gain factor when
usrpAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
usrpAGC = -20,10,100 ; Set the agc threshold
(db), slope (db) and decay (ms)
tlvAudio = AUDIO_UNITY ; Analog -> Digital
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_BPF)
tlvGain = 0.35 ; Gain factor when
tlvAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
The above has usrpAudio and TLV audio set to AUDIO_UNITY. This is
the same as AUDIO_USE_GAIN with gain of 1.0
You can use dvswitch.sh mode DMR 1.0 1.0 to do the same thing.
The command is dvswitch.sh mode {DMR|NXDN|P25|YSF|DSTAR} tlvGain
usrpGain
Since your audio from Analog to YSFn is too loud, I would start by
cutting the audio sent to YSFn in half and test:
dvswitch.sh mode YSF .50 1.0
Test with this and see if you are happy with the levels.
73, Steve N4IRS
On 12/30/20 12:54 AM, Frank C.
D'Amato wrote:
I have DVswitch setup DMR>Analog. It pushes a DMR TG to my
Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great coming
out of my DMR radio connected to a Openspot (Both ver 1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in DN
mode), and connect to the TG that my DVswitch is transmitting
to, the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound great on
the yeasu radio, The problem is only there on the TG the
DVswitch is pushing the analog audio to.
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Steve N4IRS
Actually, if he is using DVSwitch Server, he can change to audio
level when he switches to YSF in /opt/Analog_Bridge/dvsm.macro:
[MACROS]
; Example: When a DVSM user selects the DMR mode, AB will look for
the mode below and execute the script and pass the parameter.
; In this case, AB will execute the script
"/opt/MMDVM_Bridge/dvswitch.sh" and pass the prarmeters of "mode
DMR" to the script.
DMR = /opt/MMDVM_Bridge/dvswitch.sh mode DMR
DSTAR = /opt/MMDVM_Bridge/dvswitch.sh mode DSTAR
NXDN = /opt/MMDVM_Bridge/dvswitch.sh mode NXDN
P25 = /opt/MMDVM_Bridge/dvswitch.sh mode P25
YSF = /opt/MMDVM_Bridge/dvswitch.sh mode YSF
So, it would be a matter of editing the above.
toggle quoted messageShow quoted text
On 12/30/20 6:23 AM, Patrick Perdue
wrote:
I could be wrong, but it doesn't sound like Frank is actually
bridging to YSF, but rather is just crossmoding to DMR with a
C4FM radio. That being the case, there will be no separate
option for changing the TLVGain for YSF. You'll have to adjust
TLVGain for DMR audio and hope it helps without
overcompensating.
On 12/30/2020 6:19 AM, Steve N4IRS
wrote:
Frank,
You can control the audio level sent from or to digital.
Depending on how you change modes you can change levels on the
fly.
Since you are happy with the level of DMR, I would start there
since this is what you will want to return to.
The mode command command of dvswitch.sh will take 2 optional
parameters. These parameters control the audio levels. Below is
the section from Analog_Bridge.ini:
[USRP]
address = 127.0.0.1 ; IP address of USRP
partner (Allstar/Asterisk or another Analog_Bridge)
txPort = 32001 ; Transmit USRP frames
on this port
rxPort = 34001 ; Listen for USRP
frames on this port
usrpAudio = AUDIO_UNITY ; Digital -> Analog
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_USE_AGC)
usrpGain = 1.10 ; Gain factor when
usrpAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
usrpAGC = -20,10,100 ; Set the agc
threshold (db), slope (db) and decay (ms)
tlvAudio = AUDIO_UNITY ; Analog -> Digital
(AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_BPF)
tlvGain = 0.35 ; Gain factor when
tlvAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
The above has usrpAudio and TLV audio set to AUDIO_UNITY. This
is the same as AUDIO_USE_GAIN with gain of 1.0
You can use dvswitch.sh mode DMR 1.0 1.0 to do the same thing.
The command is dvswitch.sh mode {DMR|NXDN|P25|YSF|DSTAR} tlvGain
usrpGain
Since your audio from Analog to YSFn is too loud, I would start
by cutting the audio sent to YSFn in half and test:
dvswitch.sh mode YSF .50 1.0
Test with this and see if you are happy with the levels.
73, Steve N4IRS
On 12/30/20 12:54 AM, Frank C.
D'Amato wrote:
I have DVswitch setup DMR>Analog. It pushes a DMR TG to my
Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great coming
out of my DMR radio connected to a Openspot (Both ver
1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in DN
mode), and connect to the TG that my DVswitch is transmitting
to, the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound great
on the yeasu radio, The problem is only there on the TG the
DVswitch is pushing the analog audio to.
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Also true, though I think he is just connecting his hotspot to
DMR and using it to convert to C4FM, not DVSwitch for that.
Again, could be wrong, and I'll shut up before I get myself into
trouble, but that's how I read it.
toggle quoted messageShow quoted text
On 12/30/2020 6:27 AM, Steve N4IRS
wrote:
Actually, if he is using DVSwitch Server, he can change to audio
level when he switches to YSF in /opt/Analog_Bridge/dvsm.macro:
[MACROS]
; Example: When a DVSM user selects the DMR mode, AB will look for
the mode below and execute the script and pass the parameter.
; In this case, AB will execute the script
"/opt/MMDVM_Bridge/dvswitch.sh" and pass the prarmeters of "mode
DMR" to the script.
DMR = /opt/MMDVM_Bridge/dvswitch.sh mode DMR
DSTAR = /opt/MMDVM_Bridge/dvswitch.sh mode DSTAR
NXDN = /opt/MMDVM_Bridge/dvswitch.sh mode NXDN
P25 = /opt/MMDVM_Bridge/dvswitch.sh mode P25
YSF = /opt/MMDVM_Bridge/dvswitch.sh mode YSF
So, it would be a matter of editing the above.
On 12/30/20 6:23 AM, Patrick Perdue
wrote:
I could be wrong, but it doesn't sound like Frank is actually
bridging to YSF, but rather is just crossmoding to DMR with a
C4FM radio. That being the case, there will be no separate
option for changing the TLVGain for YSF. You'll have to adjust
TLVGain for DMR audio and hope it helps without
overcompensating.
On 12/30/2020 6:19 AM, Steve N4IRS
wrote:
Frank,
You can control the audio level sent from or to digital.
Depending on how you change modes you can change levels on the
fly.
Since you are happy with the level of DMR, I would start there
since this is what you will want to return to.
The mode command command of dvswitch.sh will take 2 optional
parameters. These parameters control the audio levels. Below
is the section from Analog_Bridge.ini:
[USRP]
address = 127.0.0.1 ; IP address of USRP
partner (Allstar/Asterisk or another Analog_Bridge)
txPort = 32001 ; Transmit USRP
frames on this port
rxPort = 34001 ; Listen for USRP
frames on this port
usrpAudio = AUDIO_UNITY ; Digital ->
Analog (AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_USE_AGC)
usrpGain = 1.10 ; Gain factor when
usrpAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
usrpAGC = -20,10,100 ; Set the agc
threshold (db), slope (db) and decay (ms)
tlvAudio = AUDIO_UNITY ; Analog ->
Digital (AUDIO_UNITY, AUDIO_USE_GAIN, AUDIO_BPF)
tlvGain = 0.35 ; Gain factor when
tlvAudio = AUDIO_USE_GAIN (0.0 to 5.0) (1.0 = AUDIO_UNITY)
The above has usrpAudio and TLV audio set to AUDIO_UNITY. This
is the same as AUDIO_USE_GAIN with gain of 1.0
You can use dvswitch.sh mode DMR 1.0 1.0 to do the same thing.
The command is dvswitch.sh mode {DMR|NXDN|P25|YSF|DSTAR}
tlvGain usrpGain
Since your audio from Analog to YSFn is too loud, I would
start by cutting the audio sent to YSFn in half and test:
dvswitch.sh mode YSF .50 1.0
Test with this and see if you are happy with the levels.
73, Steve N4IRS
On 12/30/20 12:54 AM, Frank C.
D'Amato wrote:
I have DVswitch setup DMR>Analog. It pushes a DMR TG to
my Hamvoip Allstar node (2 seperate Pi's).
When I talk on the analog radio, the audio sounds great
coming out of my DMR radio connected to a Openspot (Both ver
1&2).
If I put my openspot modem to C4FM (to use my yaesu rado in
DN mode), and connect to the TG that my DVswitch is
transmitting to, the audio sounds very distorted and loud.
Anyone else have this problem?
Using the same setup C4FM to DMR on the openspots sound
great on the yeasu radio, The problem is only there on the
TG the DVswitch is pushing the analog audio to.
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Frank C. D'Amato - KB2MXV
That’s correct, I’m not using C4FM on DVswitch. I’m just cross mode from another hotspot.
I’ll try lowering the DMR settings.
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Frank C. D'Amato - KB2MXV
Once I edit Analog_Bridge.ini, what commands can I type to get the DVswitch to start using the new values instead of restarting the Pi?
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Steve N4IRS
systemctl restart analog_bridge
toggle quoted messageShow quoted text
On 12/30/20 10:11 AM, Frank C. D'Amato
wrote:
Once I edit Analog_Bridge.ini, what commands can I type to get the
DVswitch to start using the new values instead of restarting the
Pi?
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