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Rx latency

Posted: Tue Jan 23, 2018 3:03 pm
by IU6JKI
I use 0.8.1-1 paid version of rxtx whit jarec 0.8.1.
Program works fine but i want know how i can reduce latency in rx.
Radio is icom 7300 and is connected via usb to pc (intel core i7 whit 16gb ram).
Rxtx is on a tablet (octacore 1.8ghz whit 1gb ram whit only pocket rxtx installed).
When i send commands to the radio, it respond very fast and if i push ptt my voice come from the radio in a millisecond.
Problem in latency in rx...if i turn on the volume on my radio, i can hear a latency of approx 1-2 second in the tablet.
How can i solve?
I tried whit my samsung galaxy s6 too but performance is the same.
I also tried to connect using direct lan, wifi, mobile data 4g, but still remain the same.
Somebody have the same problem?
I tried the 0.9 version of rxtx and jarec but the latency in tx is the same and more long on tx.

Re: Rx latency

Posted: Thu Jan 25, 2018 10:26 am
by IU6JKI
Nobody can help me?
73

Re: Rx latency

Posted: Fri Jan 26, 2018 8:42 am
by yo3ggx
Hello,

As stated in the e-mail I've sent to you, please check your version of java runtime. It may be an incompatibility between java and the integrated USB audio interface in IC7300. I have no other reports with such a one-way delay, as the audio path is symetric.

73 Dan YO3GGX

Re: Rx latency

Posted: Sat Jan 27, 2018 12:03 am
by IU6JKI
Thx for reply.
Java is the latest version.
Radio firmware too.