[audacity4blind] Re: mixing two audio files
- From: David Bailes <david_bailes@xxxxxxxxxxx>
- To: audacity4blind@xxxxxxxxxxxxx
- Date: Sat, 16 Nov 2013 10:29:40 +0000 (GMT)
Hi Gary, thanks for pointing out and correcting the typo,
David.
--------------------------------------------
On Fri, 15/11/13, Gary Campbell <campg2003@xxxxxxxxx> wrote:
Subject: [audacity4blind] Re: mixing two audio files
To: audacity4blind@xxxxxxxxxxxxx
Date: Friday, 15 November, 2013, 19:09
Select from cursor to end of selected
tracks is Shift+k, edited below.
Gary
-----Original Message-----
From: audacity4blind-bounce@xxxxxxxxxxxxx
[mailto:audacity4blind-bounce@xxxxxxxxxxxxx]
On Behalf Of David Bailes
Sent: Monday, November 11, 2013 3:56 AM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] Re: mixing two audio files
Hi Mike,
below are a few more details of the auto duck effect. Note,
that you have to
import rather than open files if you want to create tracks
out of more than
one file in a project. This is because opening a file
creates a new
project, unless the project is a newly created empty
project. On the file
menu, open the import sub menu, and choose audio
(ctrl+shift+I). So if
you've got two files, you can open or import the first one,
but you have to
import the second one.
Auto Duck
The Auto Duck effect reduces (ducks) the volume in the
selected audio during
the periods in which the level of another track, known as
the control track,
exceeds a certain threshold. The Auto duck effect uses the
track which comes
immediately after the last selected track as the control
track.
So, for example, if you've got one music track, and one
voice track in the
project, and you want to reduce the volume of the music when
there's speech
in the voice track:
1.Make sure that the music track is the first track. If it
isn't, you can
move a track up or down the track table by opening its menu,
and choosing
Move Track Up or Move Track Down respectively.
2.Make sure that the voice track is not selected.
3.Select all the audio in the music track. To do this, first
make sure that
the track is selected. Then select a time range that
includes all the audio
in the track: press J to move the cursor to the start of the
audio in the
selected track, and then press Shift + K to select from the
cursor to the
end of the audio in the selected track.
4.On the Effects menu, open the Auto Duck dialog, and
if you've happy with
the default settings, then just press Enter to press the
default OK button.
Auto Duck settings:
- Duck amount. This is the amount of volume reduction of the
selected audio
during the periods when the level in the control tracks
exceeds the
threshold. Its given in decibels, and its default value is
-12dB.
- Maximum pause. If the time between two periods when the
level in the
control track exceeds the threshold is less than the Maximum
pause
parameter, then the selected audio continues to be ducked in
this time –
there isn't a fade up and then a fade down. If for example
the control track
contains speech, then if there are pauses less than the
maximum pause, then
the selected audio continues to be ducked during this
period. The default
value of Maximum pause is 1 second. Note that regardless of
this setting the
Maximum pause is always at least the sum of the outer fade
lengths, which
are described below.
- Fade lengths. The time over which the volume in the
selected audio is
faded down to the reduced volume is made up of two parts.
The volume of the
selected audio can start to fade down before the level in
the control track
starts exceeding the threshold. This time interval is known
as the outer
fade down length, because it occurs outside of the time when
the threshold
is exceeded, and its default value is 0.5 seconds. In
addition, the volume
can finish fading down after the threshold starts to be
exceeded. This
interval is known as the inner fade down length, because it
occurs inside
the time when the threshold is exceeded, and its default
value is 0 seconds.
In an entirely similar manner, the time over which the
volume in the
selected audio is faded back up is also made up of two
parts: the inner and
the outer fade up lengths, which have default values of 0
and 0.5 seconds
respectively.
- Threshold. The selected audio is ducked during the periods
when the level
in the control track exceeds this threshold. It's given in
decibels, and its
default value is -16dB.
David.
--------------------------------------------
On Fri, 8/11/13, Mike Bernard <mbern6516@xxxxxxx>
wrote:
Subject: [audacity4blind] Re: mixing two audio files
To: audacity4blind@xxxxxxxxxxxxx
Date: Friday, 8 November, 2013, 18:39
Hi Robby,Could you explain how to use the audo
duck feature in step-by-step instructions? I looked at the
built-in manual that comes with Audacity, and like many
articles we find online that explain how to do something,
they’re assuming that the user is using a mouse, and
I’m not able to use the mouse. I’m hoping to
create a recording that simulates a radio broadcast like
sound. Whereas, at the beginning, there’s
approximately 15 seconds of instrumental music, then at
the
point where the narration would begin, the music will fade
down but continue to play at a comfortable level so that
it
doesn’t get in the way of the voice track. Thus,
allowing the listener to hear both the music and voice
track. Then, when the voice track ends, the music will
fade
back up and play for a few seconds, then fade out.
Thanks.MikeRochester, NY. USA
From: audacity4blind-bounce@xxxxxxxxxxxxx
[mailto:audacity4blind-bounce@xxxxxxxxxxxxx]
On Behalf Of
Robbie
Sent: Friday, November 08, 2013 1:25 AM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] Re: mixing two audio
files Hi Mike!
You can use the Auto Duck effect to create a
voice over. Make sure the voice track is below the music
track and use the track align options to move the voice
track to where you want it to start. Then make sure only
the
music track is selected, select the audio by pressing j
shift-k and apply Auto Duck. If you want The music to
fade to silence during the voice track cut it off where
you
want it to end and perform a fade before applying Auto
Duck. Cheers,
RobbieFrom: audacity4blind-bounce@xxxxxxxxxxxxx
[mailto:audacity4blind-bounce@xxxxxxxxxxxxx]
On Behalf Of Mike Bernard
Sent: Thursday, November 7, 2013 11:43 PM
To: audacity4blind@xxxxxxxxxxxxx
Subject: [audacity4blind] mixing two audio
files
Hello fellow Audacity users,I'm in the process of
creating a demo
recording for an online radio station to which I'm
thinking about joining in the near future.I'd like to add
music to an
already
existing audio file in such a way that I can combined the
music and the audio file together. Thus, when the
completed
file is played back, in the beginning of the recording,
the
music will start to play first, then after so much time,
the
music will fade slightly and the audio file containing me
speaking will play, creating a smooth balance between my
voice and the music, similar to what happens when someone
is
talking live over the radio with background music playing.
Then, once that recording is done, I can fix it so that
the
music will either fade back up, or fade to silence
completely, when the speaking portion of the recording is
done. Thus, allowing me to create a somewhat professional
sounding recording. I say somewhat professional, because I
don't have any pro audio equipment or anything fancy
like a studio would. Also, is there a way to get audacity
to
record in stereo? Thanks.MikeRochester, NY.
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