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?'s about input volume and playback volume

Posted: Wed Jun 14, 2017 12:57 pm
by jpb
Audacity 2.0.2, but will upgrade shortly :-)

I recorded 16 files at two different times. The playback volume is different for both, even though I’m not aware of having done anything different or changed settings. I think I’m speaking at about the same level. In the future:

1. If I always set the input level to the same number on my microphone, will the output volume be the same? I did not see where to set this in Audacity, but I did find it in the properties of my microphone.

2. If that’s not right, how do I control this? Maybe normalizing is the answer, though I found it changed the quality of the sound ever so slightly. Or maybe there’s a way to set an output level that will make playback consistent from one file to the next?

For this same project, I also had three different speakers (we’re in different parts of the US, so no way to use exact same recording equipment). I asked them to use Audacity as well, so I could edit if needed. Again, there’s the issue of keeping the same playback volume throughout. I’ve been testing some solutions and this is the one I came up with and am ready to implement. I’m curious to know if there is a better or easier way.

1. I exported all 20 files to mp3.
2. I imported all of the files at one time and did Effect/Normalize
3. I exported multiple. (I wasn’t sure I could do this with aup files)
4. The volume was too loud. Even though I know the user can adjust, I wanted it at least comfortably loud.
5. I started over, and when I normalized, I changed the decibel setting. This seemed to do the trick.

What I'm concerned about is if after my project is published and I have to make a change, how will I match the other files? Each file is on a separate "slide" in a tutorial, so is imported into the software. I don't think when I normalize I can specify match file X to the level in file Y, right? I had this issue for a recent project and manually adjusted the sound, trial and error to get the new file to match the old. Very time consuming... but it worked!!!

Thanks!

Re: ?'s about input volume and playback volume

Posted: Wed Jun 14, 2017 1:13 pm
by steve
jpb wrote:Audacity 2.0.2, but will upgrade shortly :-)
That's very old now. Audacity 2.1.3 is available from here: http://www.audacityteam.org/download/
jpb wrote:1. If I always set the input level to the same number on my microphone, will the output volume be the same?
The level in Audacity when recording from a mic depends on many things. In addition to the mic / pre-amp hardware, the factors affecting the recording level include:
* The distance between microphone and sound source
* Direction that the mic is pointing in relation to the sound source
* How loud the sound source is
* Depending on hardware, there may be additional settings in the Windows Sound Control Panel that affect recording level.