I applied some realtime effects to a track. Then, I rendered that track to check how the effects impacted the wave form. However, the new rendered track has much more volume than the original track with the effects applied. From my point of view, the should sound the exactly the same way. Let’s say, original track+effects should be = to the new rendered track with no other effects applied.
Hi billw58. The wave it’s bigger, and that is normal because effects were added to the original wave (simple EQ, pro EQ and master). Although, I think they should sound the same, since the original track has the effects “On” when I hit the play button.
Obviously if you boost the bass (or boost anything) with EQ you are going to boost the volume.
If you are mixing, that’s another common problem because mixing is done by summation. (Analog mixers are built-around a summing amplifier but they have level controls for each input, plus a master control so it’s more of a weighted average.)
Audacity uses floating point internally so it has no upper (or lower limits) and it won’t clip (distort). But most file formats are limited to 0dB so you can get clipping when you export, or you can clip your digital-to-analog converter if you play it at “full digital volume”.
So… It’s a good idea to run the Amplify or Normalize effect to bring-down the volume if necessary before exporting.
And if you are boosting the bass… After you normalize the recording may sound quieter overall because our ears are not as sensitive to bass and most speakers are not efficient in the bass range.
Let me add one more detail: I’m getting distortion on the new rendered track, and even if I reduce the volume with “Amplify”, the distortion is still there. I didn’t export the new track to WAV because first I need to understand what’s happening.
From your description is seems like the rendered track has clipping.
With the rendered track in the project, do View > Show Clipping.
If you see red clipping lines you need to reduce the volume of the track before rendering. Use the track gain control to lower the volume of the track before you render it. If you want to maximize the level of the resulting rendered track run the Normalize effect on the rendered track before exporting it.
This is not making sense. If the exported WAV has clipping it should show when imported back into Audacity. If the track with real-time effects applied to it is clipping you should be able to hear that when playing it back.
Let’s try an experiment.
Instead of rendering the track, do a Mix and Render to New Track.
You can now play each track separately by using the Solo buttons on the tracks. What do you see and hear?
Bill, this is getting weird. My problem is the two first notes of the track distorting.
The rendered track is in fact at the same volume of the original track plus real time effects, with the exception of those first two notes. Those are louder. Probably a bug?
In Audcaity3 some VST3 plugins apply default settings when you mix & render. Those default settings can be different to what you’d set in real-time. A workaround is to pause, (not stop), playback, then mix & render whist paused. Then you get the effect you dialed-in in real-time.