Re: How to run amplify on a number of tracks?

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On Fri, 23 Oct 2020 at 11:50, Chris Green <[email protected]> wrote:

> I have created a macro to normalize a number of tracks but I don't see
> an easy way to amplify just one side (i.e. L or R) of a series of
> stereo tracks.
>
> Doing it manually is quite clumsy as you have to split tracks, select
> the one you want to amplify, then 'unsplit' the tracks and save the
> result.
>
> Is there a simpler way of applying amplify to one side of a stereo
> track?
>

You can do that with Nyquist

For example, if you add this to your Macro ".txt" file, it will reduce the
left channel of a stereo track by 50% and increase the right channel by 50%
(probably requires Audacity 2.4.2)

NyquistPrompt:Command="(vector\n  (mult (aref *track* 0) 0.5)\n  (mult
(aref *track* 1) 1.5))" Parameters="" Version="4"

If you wish to discuss this further we can continue the discussion on the
Audacity help forum (I'm on there most days)
https://forum.audacityteam.org/viewforum.php?f=69

Steve



>
> I can't use Normalize because I want to maintain the relative levels
> of a series of tracks in one album, I just want to balance the stereo.
>
> --
> Chris Green
>
>
> *********** ASKING FOR HELP *************
>
> When asking for help on this list, please include the following
> information, so we can
> help you properly:
>
> * What operating system you are using (for example, Windows XP or Mac OS X
> 10.5.1)
>
> * Exactly what three digit version number of Audacity you are using (Help
> > About
>    Audacity, or Audacity >  About Audacity on a Mac computer)
>
> * If this is a recording problem, what equipment you are recording with,
> and how is it
>    connected to the computer?
>
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Fri, 23 Oct 2020 at 11:50, Chris G=
reen &lt;<a href=3D"mailto:[email protected]">[email protected]</a>&gt; wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left:1px solid rgb(204,204,204);padding-left:1ex">I have created a macro t=
o normalize a number of tracks but I don&#39;t see<br>
an easy way to amplify just one side (i.e. L or R) of a series of<br>
stereo tracks.<br>
<br>
Doing it manually is quite clumsy as you have to split tracks, select<br>
the one you want to amplify, then &#39;unsplit&#39; the tracks and save the=
<br>
result.<br>
<br>
Is there a simpler way of applying amplify to one side of a stereo<br>
track?<br></blockquote><div><br></div><div>You can do that with Nyquist</di=
v><div><br></div><div>For example, if you add this to your Macro &quot;.txt=
&quot; file, it will reduce the left channel of a stereo track by 50% and i=
ncrease the right channel by 50%</div><div>(probably requires Audacity 2.4.=
2)<br></div><div><br></div><div>NyquistPrompt:Command=3D&quot;(vector\n =C2=
=A0(mult (aref *track* 0) 0.5)\n =C2=A0(mult (aref *track* 1) 1.5))&quot; P=
arameters=3D&quot;&quot; Version=3D&quot;4&quot;<br></div><div><br></div><d=
iv>If you wish to discuss this further we can continue the discussion on th=
e Audacity help forum (I&#39;m on there most days) <br></div><div><a href=
=3D"https://forum.audacityteam.org/viewforum.php?f=3D69">https://forum.auda=
cityteam.org/viewforum.php?f=3D69</a></div><div><br></div><div>Steve<br></d=
iv><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">
<br>
I can&#39;t use Normalize because I want to maintain the relative levels<br=
>
of a series of tracks in one album, I just want to balance the stereo.<br>
<br>
-- <br>
Chris Green<br>
<br>
<br>
*********** ASKING FOR HELP *************<br>
<br>
When asking for help on this list, please include the following information=
, so we can<br>
help you properly:<br>
<br>
* What operating system you are using (for example, Windows XP or Mac OS X =
10.5.1)<br>
<br>
* Exactly what three digit version number of Audacity you are using (Help &=
gt; About<br>
=C2=A0 =C2=A0Audacity, or Audacity &gt;=C2=A0 About Audacity on a Mac compu=
ter)<br>
<br>
* If this is a recording problem, what equipment you are recording with, an=
d how is it<br>
=C2=A0 =C2=A0connected to the computer?<br>
<br>
Mailing list: <a href=3D"mailto:[email protected]" targe=
t=3D"_blank">[email protected]</a><br>
To UNSUBSCRIBE, use the form at the bottom of this web page:<br>
<a href=3D"https://lists.sourceforge.net/lists/listinfo/audacity-users" rel=
=3D"noreferrer" target=3D"_blank">https://lists.sourceforge.net/lists/listi=
nfo/audacity-users</a><br>
</blockquote></div></div>

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*********** ASKING FOR HELP *************

When asking for help on this list, please include the following information, so we can
help you properly:

* What operating system you are using (for example, Windows XP or Mac OS X 10.5.1)

* Exactly what three digit version number of Audacity you are using (Help > About
   Audacity, or Audacity >  About Audacity on a Mac computer)

* If this is a recording problem, what equipment you are recording with, and how is it
   connected to the computer?

Mailing list: [email protected]
To UNSUBSCRIBE, use the form at the bottom of this web page:
https://lists.sourceforge.net/lists/listinfo/audacity-users
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