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Why when using a master bus in AUM, the sound worsens?

I have been noticing when I use a bus as a master to record all the tracks, the volume levels and general sound is not as good as without the bus. For example I was running a few synths with Pure Acid and when I routed it to the master bus, the sound of it dropped and got muffled away. It sounds fine without the bus. Any ideas ?

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Comments

  • Headroom issues?

  • @hghon said:
    Headroom issues?

    Could be too high volumes , 👍

  • I’ve noticed that whilst using the default AUM level monitoring, and it is happily sitting at -12 db on the mix bus, if I record at that level into AudioShare, it is distorting horribly. I have to drop AudioShare to -12 db also. This didn’t used to be the case a while back, so, Mm, maybe something has changed?

  • edited October 2023

    I think to maybe just screen record and not bus record as it sounds much more natural and less compressed. I find it sounds like a linter is on when using a bus and everything is drowning out and no headroom left . My levels aren’t that hot as well. Any ideas ?

  • @j_liljedahl can you remind us if AUM does any auto limiting or is that an iPad volume control thing? I know we chatted about this a long time ago but can’t remember what you said lol.

    @Antos3345 what’s on your master bus and what levels are you recording at?

  • @gusgranite said:
    @j_liljedahl can you remind us if AUM does any auto limiting or is that an iPad volume control thing? I know we chatted about this a long time ago but can’t remember what you said lol.

    @Antos3345 what’s on your master bus and what levels are you recording at?

    I am recording under 0 db. I lowered many of the other channel’s volumes and it sounds better, but still not where I want it. I think it’s a headroom issue.

  • edited October 2023

    @Antos3345 said:

    @gusgranite said:
    @j_liljedahl can you remind us if AUM does any auto limiting or is that an iPad volume control thing? I know we chatted about this a long time ago but can’t remember what you said lol.

    @Antos3345 what’s on your master bus and what levels are you recording at?

    I am recording under 0 db. I lowered many of the other channel’s volumes and it sounds better, but still not where I want it. I think it’s a headroom issue.

    If you gain stage such that the loudest track in your project peaks no louder than -18dB (some people use -12) you will always have the necessary headroom, then use Barricade to make up the appropriate amount of loudness on the master.
    (albeit this may have nothing to do with your problem, I don't know, sounds mysterious)

  • wimwim
    edited October 2023

    A screenshot of your setup might help spot the issue.

    You really shouldn't get distortion regardless of gain staging unless your master is too high or you have plugins that distort with too high input levels. AUM itself shouldn't distort internally up to the master.

    You could get phase issues if you have doubled up inputs, such as feeding the master with both a wet signal through a plugin that has latency and a dry signal that doesn't.

    It could also be a plugin that only works well at a certain sample rate - though that's rare these days.

  • Are you going to your bus via the channel output or with a send?

  • @Antos3345 said:
    I have been noticing when I use a bus as a master to record all the tracks, the volume levels and general sound is not as good as without the bus. For example I was running a few synths with Pure Acid and when I routed it to the master bus, the sound of it dropped and got muffled away. It sounds fine without the bus. Any ideas ?

    That shouldn't happen. please post a demonstration

  • @espiegel123 said:

    @Antos3345 said:
    I have been noticing when I use a bus as a master to record all the tracks, the volume levels and general sound is not as good as without the bus. For example I was running a few synths with Pure Acid and when I routed it to the master bus, the sound of it dropped and got muffled away. It sounds fine without the bus. Any ideas ?

    That shouldn't happen. please post a demonstration

    I will try to make a video this week.

  • @BroCoast said:
    Are you going to your bus via the channel output or with a send?

    Channel output.

  • Just a screenshot might be enough.

  • edited October 2023

    Notice the instrument channels are not hot or in the red, but the bus is in the red.

  • The instrument channel is super red at 2.2

  • However that shouldn’t matter if yo you have the master fader down as in the picture unless the plugin itself clips (koala does this, internally clip)

  • @cokomairena said:
    The instrument channel is super red at 2.2

    Yes, true, that’s the kick drum. I will try adjusting the level from the instrument, but the level is low in the line mix.

  • @Antos3345 : in the past picture, there must be something providing signal that we don't see in the picture.

  • I will delete the other channels and see and post.

  • Get every channel to peak at -18 db and I really don’t think you’ll have that problem. Use the volume knob on Noir while monitoring until it doesn’t go over -18 and do that for every channel you’re running into channel A

  • wimwim
    edited October 2023

    Levels feeding into that master shouldn't matter much as long as the master output is OK. There are no plugins that would distort from high levels on that master. AUM won't clip going into the master even at high levels.

    The description of the problem doesn't sound like clipping anyway. It sounds more like phase issues from somewhere else in the project. I don't see anything that would do that from the screenshots, but apparently we're not seeing the whole project.

    I routed it to the master bus, the sound of it dropped and got muffled away. It sounds fine without the bus. Any ideas ?

    That ain't from clipping.

  • It would be helpful to have a video demonstration with audio that shows us all mixer channels and let’s us hear what is going on.

  • edited October 2023

    I will try to up
    load a video.. can I upload one here ? It seems that line 3 of the hihats is making the red on the master bus A. I don’t see why.

  • wimwim
    edited October 2023

    @Antos3345 said:
    I will try to up
    load a video.. can I upload one here ? It seems that line 3 of the hihats is making the red on the master bus A. I don’t see why.

    The red on the master is not the problem based on your original description of the sound. It has to be something else.

  • wimwim
    edited October 2023

    I suspect the compressor on ch 4. What is the Mix set to? If it's not 100% then maybe you're getting phase issues there. Also, are there any overlaps in sounds on the two Noirs? If one is slightly delayed by the compressor it could be phasing against sounds from the other.

    Are you doing any side chaining on RoughRider 3?

  • @Antos3345 said:
    I will try to up
    load a video.. can I upload one here ? It seems that line 3 of the hihats is making the red on the master bus A. I don’t see why.

    Upload to YouTube and post a link

  • @Fingolfinzz said:
    Get every channel to peak at -18 db and I really don’t think you’ll have that problem. Use the volume knob on Noir while monitoring until it doesn’t go over -18 and do that for every channel you’re running into channel A

    we are in digital, you don't need that

  • edited October 2023
    The user and all related content has been deleted.
  • @cokomairena said:

    @Fingolfinzz said:
    Get every channel to peak at -18 db and I really don’t think you’ll have that problem. Use the volume knob on Noir while monitoring until it doesn’t go over -18 and do that for every channel you’re running into channel A

    we are in digital, you don't need that

    Works for me every time and I never get clipping

  • wimwim
    edited October 2023

    @tja said:
    When you are in red and export to a file, without limiting - the file will be clipped.
    But that should be the same for using a master channel or not.

    But then, how do you want to export all channels to a file without using some master channel, @Antos3345 ?

    Without, you can only export each channel to it's own file - and those may not be clipped.
    Adding them will get the output into red!

    So, which situations are you actually comparing?

    • Nothing is clipping on the output of the master bus. The fader is down sufficiently. Note the output meter.
    • The input to the master is in the red on the input, but this does not matter. That will not cause clipping if there are no plugins in the master channel that would clip.
    • The effect described in the OP isn't clipping. It's described as a lowering and a muffling. Clipping doesn't sound like that.
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