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Fri, 10 Jul 2020 10:40:26 -0700 (PDT) Date: Fri, 10 Jul 2020 20:40:09 +0300 From: Maxim Doumkine To: sox-users@lists.sourceforge.net Message-ID: <9148e80a-8af7-4545-af62-bf4f3512aace@Spark> References: <0713c9d8-7bdf-4b97-99b4-12e219e94d45@Spark> X-Readdle-Message-ID: 9148e80a-8af7-4545-af62-bf4f3512aace@Spark MIME-Version: 1.0 X-ZohoMailClient: External X-Headers-End: 1jtxHu-00GNku-UC Subject: Loopback latency issue X-BeenThere: sox-users@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sox-users@lists.sourceforge.net Content-Type: multipart/mixed; boundary="===============6750618251277931087==" Errors-To: sox-users-bounces@lists.sourceforge.net --===============6750618251277931087== Content-Type: multipart/alternative; boundary="5f08a7ff_41b71efb_1b4c" --5f08a7ff_41b71efb_1b4c Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hello everyone, We are trying to build a Sox based real-time sound altering app, and we=E2= =80=99ve got everything working on our LUbuntu 16.04 stations except for = an issue w latency. When we test it on actual hardware, we are having a latency of about 2 se= conds, when we test it on our virtual machine the latency is more like 25= 0ms. sox -t pusleaudio default -t pulseaudio null pitch n Whenever we add the null loopback or aloop, we experience a delay. No amo= unt of config tinkering seems to affect this latency on an actual worksta= tion. We=E2=80=99d appreciate an advice or any input but would be equally glad = to hire a consultant for a fee to get this resolved. Thank you. --5f08a7ff_41b71efb_1b4c Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Hello everyone,&=23160;

We are trying to build a Sox based real-time sound altering app, and we=E2= =80=99ve got everything working on our LUbuntu 16.04 stations except for = an issue w latency.&=23160;

When we test it on actual hardware, we are having a latency of about 2 se= conds, when we test it on our virtual machine the latency is more like 25= 0ms.&=23160;

sox -t pusleaudio default -t pulseaud= io null pitch n
Wh= enever we add the null loopback or aloop, we experience a delay. No amoun= t of config tinkering seems to affect this latency on an actual workstati= on.&=23160;

We=E2=80=99d appreciate an advice or any input but would be equally glad = to hire a consultant for a fee to get this resolved.&=23160;

Thank you.&=23160;
--5f08a7ff_41b71efb_1b4c-- --===============6750618251277931087== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============6750618251277931087== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sox-users mailing list Sox-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-users --===============6750618251277931087==--