# Mastering problem **URL:** \ **Category:** Cubase\ **Tags:** cubase-older-version\ **Created:** [December 7, 2015, 9:35pm UTC](https://forums.steinberg.net/t/mastering-problem/656638 "2015-12-07T21:35:03Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![TicoPhil](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@TicoPhil](https://forums.steinberg.net/u/TicoPhil)\ **Post date:** [December 7, 2015, 9:35pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/1 "2015-12-07T21:35:03Z")
Hi, I’m trying to master in Cubase artist 7 but just realised only one speaker is working yet the original mix has both speakers working fine. What is it do you think that prevents both speakers in the mastering stage? thanks Phil ---
**Author:** ![Martin.Jirsak](https://avatars.discourse-cdn.com/v4/letter/m/85f322/32.png) [@Martin.Jirsak](https://forums.steinberg.net/u/Martin.Jirsak)\ **Post date:** [December 7, 2015, 9:50pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/2 "2015-12-07T21:50:33Z")
Hi, Do you mean, the exported file is Mono? Make sure, you didn’t enable **Mono Downmix** , **Split Channels** or **L/R Channels** in the Export Audio Mixdown window, please. ---
**Author:** ![TicoPhil](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@TicoPhil](https://forums.steinberg.net/u/TicoPhil)\ **Post date:** [December 8, 2015, 1:53pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/3 "2015-12-08T13:53:02Z")
Thanks, they were ticked automatically as I recall. I’ll try unticking them tonight, see what happens. Phil ---
**Author:** ![Martin.Jirsak](https://avatars.discourse-cdn.com/v4/letter/m/85f322/32.png) [@Martin.Jirsak](https://forums.steinberg.net/u/Martin.Jirsak)\ **Post date:** [December 8, 2015, 3:39pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/4 "2015-12-08T15:39:53Z")
Hi, They are unticked by default. ---
**Author:** ![TicoPhil](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@TicoPhil](https://forums.steinberg.net/u/TicoPhil)\ **Post date:** [December 8, 2015, 7:36pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/5 "2015-12-08T19:36:10Z")
Hi, tried that. Still only getting sound out of one of the speakers. Any other suggestions? Thanks Phil ---
**Author:** ![Martin.Jirsak](https://avatars.discourse-cdn.com/v4/letter/m/85f322/32.png) [@Martin.Jirsak](https://forums.steinberg.net/u/Martin.Jirsak)\ **Post date:** [December 9, 2015, 5:51am UTC](https://forums.steinberg.net/t/mastering-problem/656638/6 "2015-12-09T05:51:51Z")
Hi, Can you import the exported file back to Cubase (there is also this option directly in the Export Audiomixdown window), and see the signal, please? ---
**Author:** ![TicoPhil](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@TicoPhil](https://forums.steinberg.net/u/TicoPhil)\ **Post date:** [December 9, 2015, 8:36pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/7 "2015-12-09T20:36:52Z")
Hello, I’m not sure exactly what you mean but here goes: I’ve left unticked on the export audio mix down Insert broadcast wave chunk Don’t use wave chunk Insert ixml check In addition everything is unchecked on the bottom part Real time export, mono down mix, split channels, left right channels Pool, audio track Deactivate external midi, close window after export, update display … All unticked. Now, when I go to mastering, I choose stereo mastering option, click activate but I do get missing ports message relating to high definition microphones in mapped in and in, but as these are microphones but I can assign these. Then I get vst dynamics stereo out automatically box and stereo out ins. Stereo enhancer automatically which I can change. I import and get import options which comes up with sample size, split channels automatically. I uncheck this but it is still only one speaker. Thanks Phil ---
**Author:** ![Martin.Jirsak](https://avatars.discourse-cdn.com/v4/letter/m/85f322/32.png) [@Martin.Jirsak](https://forums.steinberg.net/u/Martin.Jirsak)\ **Post date:** [December 9, 2015, 9:05pm UTC](https://forums.steinberg.net/t/mastering-problem/656638/8 "2015-12-09T21:05:28Z")
Hi, My idea was to check **Pool** and **Audio Tracks** in the Audio Export Mixdown window. Thanks to this, the exported signal will be imported back to the project, and you can visualy check, if there are both channels exported. What do you mean by “When I go to Mastering”? Maybe some screenshots would help. ---
**Author:** ![TicoPhil](https://avatars.discourse-cdn.com/v4/letter/t/3da27b/32.png) [@TicoPhil](https://forums.steinberg.net/u/TicoPhil)\ **Post date:** [December 31, 2015, 1:27am UTC](https://forums.steinberg.net/t/mastering-problem/656638/9 "2015-12-31T01:27:05Z")
Thanks, all working now.