# Bisq uses speaker on macOS **URL:** \ **Category:** Support\ **Created:** [February 16, 2020, 12:13pm UTC](https://bisq.community/t/bisq-uses-speaker-on-macos/8992 "2020-02-16T12:13:31Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![xoxoxoxo](https://bisq.community/user_avatar/bisq.community/xoxoxoxo/32/2525_2.png) [@xoxoxoxo](https://bisq.community/u/xoxoxoxo)\ **Post date:** [February 16, 2020, 12:13pm UTC](https://bisq.community/t/bisq-uses-speaker-on-macos/8992/1 "2020-02-16T12:13:31Z")
Something strange is happending: Once I start bisq (v 1.2.7 on macOS Catalina) I notice a very quiet noise exiting my speaker. I can only hear it if I turn up the volume all the way and listen carefully. But it is there. Anybody have an idea what this is about? Can anybody reproduce this? I verified my download via PGP, also I checked if bisq tries to access camera or audio, but it does not. ---
**Author:** ![tieck](https://bisq.community/letter_avatar/tieck/32/5_5575768a8748004e209b776fc1b2916d.png) [@tieck](https://bisq.community/u/tieck)\ **Post date:** [February 16, 2020, 2:42pm UTC](https://bisq.community/t/bisq-uses-speaker-on-macos/8992/2 "2020-02-16T14:42:13Z")
Possibly this is related to this feature/workaround: > > > Apple disabled options do avoid App Nap in recent OSX versions. > Playing an inau…dible sound marks the application for preventing to get > set to standby mode as well as App Nap mode. > The alternative to that "hack" would be to add OSX native code, but > even then it is likely only possible to prevent App Nap but not > sleep mode. > If Bisq is in App Nap mode offers cannot be taken as well the user loses > network connection and offers. > See: https://github.com/bisq-network/bisq/issues/1701 Playing a normally inaudible sound in the background should prevent the computer to go into standby mode. ---
**Author:** ![xoxoxoxo](https://bisq.community/user_avatar/bisq.community/xoxoxoxo/32/2525_2.png) [@xoxoxoxo](https://bisq.community/u/xoxoxoxo)\ **Post date:** [February 23, 2020, 3:50pm UTC](https://bisq.community/t/bisq-uses-speaker-on-macos/8992/3 "2020-02-23T15:50:14Z")
I see. Nice hack. Thanks!