Hello, need some help. Using usbradio and want to know where and how I can make adjustment to delay tx audio between it and PTT. I'm doing something experimental and I am getting clipped (cut short at start) audio. I see it being sent via CLI but the radio isn't in transmit yet. This is only after I issue something from the radio I am using to talk to the node. Otherwise, announcements, cwid and activity is fine. It may be a rx issue, since I am using carrierfrom=vox and rxdemod=speaker. Maybe some conflict where it is using a vox delay or is picking up a tail of false rx... So any place to set these delays?
Thanks
Greg
VOX is going to add some delay
you may also want to see if you have:
rxondelay=x
rxondelay is usually used for simplex radios or on repeater as a kerchunk filter. The integer is the common denominator of how much time you want to RX to be active before asterisk 'listens' in counts of 20ms.... so;
rxondelay=1 is 20ms. if =2, then 40ms, and so on.
Also, change your carrierfrom= key/value pair.
if you are not going to use COR/CAS logic from the radio then I suggest you use:
carrierfrom=dsp
and then run the usbradio-tune-menu to properly adjust the RX audio levels for asterisk to know what is white noise and a signal with intelligence on it.
~Benjamin, KB9LFZ
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On 03/21/2017 09:40 PM, Greg wrote:
Hello, need some help. Using usbradio and want to know where and how I can make adjustment to delay tx audio between it and PTT. I'm doing something experimental and I am getting clipped (cut short at start) audio. I see it being sent via CLI but the radio isn't in transmit yet. This is only after I issue something from the radio I am using to talk to the node. Otherwise, announcements, cwid and activity is fine. It may be a rx issue, since I am using carrierfrom=vox and rxdemod=speaker. Maybe some conflict where it is using a vox delay or is picking up a tail of false rx... So any place to set these delays?
Thanks
Greg
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