# Volume is even in all three tracks... until I export

**URL:** <https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179>\
**Category:** Podcasting\
**Created:** [February 3, 2021, 4:43am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179 "2021-02-03T04:43:38Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Elrich](https://forum.audacityteam.org/user_avatar/forum.audacityteam.org/elrich/32/31842_2.png) [@Elrich](https://forum.audacityteam.org/u/Elrich)\
**Post date:** [February 3, 2021, 4:43am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/1 "2021-02-03T04:43:38Z")

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I’m working on a podcast with three participants (recorded on Zoom), each in a separate channel. Using both Amplifier and the volume sliders, I got the volume across all three channels to be about the same. But I exported an MP3, and in the MP3 some participants are louder than others. I adjusted the sliders in Audacity several times, but I still can’t seem to get a file where all three participants are at the same volume. What can I do? Why is this a case of “what you hear is not what you get”?

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**Author:** ![Elrich](https://forum.audacityteam.org/user_avatar/forum.audacityteam.org/elrich/32/31842_2.png) [@Elrich](https://forum.audacityteam.org/u/Elrich)\
**Post date:** [February 3, 2021, 4:48am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/2 "2021-02-03T04:48:59Z")

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FYI, Audacity 2.4.1 on a Mac running 10.15.7 Catalina.

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**Author:** ![Trebor](https://forum.audacityteam.org/user_avatar/forum.audacityteam.org/trebor/32/45854_2.png) [@Trebor](https://forum.audacityteam.org/u/Trebor)\
**Post date:** [February 3, 2021, 5:28am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/3 "2021-02-03T05:28:31Z")

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> [@](#):
>
> I’m working on a podcast with three participants (recorded on Zoom), each in a separate channel.  
> Using both Amplifier and the volume sliders, I got the volume across all three channels to be about the same …

If you are judging equal volume visually: by equal [amplitude](https://en.wikipedia.org/wiki/Amplitude#Definitions), that is not necessarily the case.  
The over-the-phone voice needs to be have a larger amplitude than the in-the-studio voice,  
to be [perceived as equally loud](https://en.wikipedia.org/wiki/Equal-loudness_contour), (because the phone/zoom/skype voice lacks bass).

There are free [loudness-meter plugins](https://youlean.co/youlean-loudness-meter/), which are more reliable than judging by ear.

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**Author:** ![Elrich](https://forum.audacityteam.org/user_avatar/forum.audacityteam.org/elrich/32/31842_2.png) [@Elrich](https://forum.audacityteam.org/u/Elrich)\
**Post date:** [February 4, 2021, 1:43am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/4 "2021-02-04T01:43:52Z")

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Thanks for your response.

I tried installing the app you linked to, but it seemed the only thing it would let me do for free was install it - it said that to analyze a file I’d need the pro version.

Anyway, I tried again in Audacity, and then ran the exported AIFF file through Levelator, and got something I was pleased with.

Thanks.

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**Author:** ![Trebor](https://forum.audacityteam.org/user_avatar/forum.audacityteam.org/trebor/32/45854_2.png) [@Trebor](https://forum.audacityteam.org/u/Trebor)\
**Post date:** [February 4, 2021, 1:58am UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/5 "2021-02-04T01:58:58Z")

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> [@](#):
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> … Levelator …

There is a levelator-style plugin for Audcaity: [LevelSpeech2.NY](https://forum.audacityteam.org/t/improved-leveling-for-speech/33258/27) ,  
( but it’s not psychoacoustic: it does not take into account equal-loudness curves ).

![](https://forum.audacityteam.org/download/file.php?id=9669)

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**Author:** ![steve](https://forum.audacityteam.org/letter_avatar_proxy/v4/letter/s/f19dbf/32.png) [@steve](https://forum.audacityteam.org/u/steve)\
**Post date:** [February 4, 2021, 6:41pm UTC](https://forum.audacityteam.org/t/volume-is-even-in-all-three-tracks-until-i-export/60179/6 "2021-02-04T18:41:58Z")

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Audacity 2.4.2 has “Loudness Normalizing”. See: [https://manual.audacityteam.org/man/loudness\_normalization.html](https://manual.audacityteam.org/man/loudness_normalization.html)
