I have been concerned about Aiff exports from Audacity. In the previous versions, and the latest, I was unable to find any option for normalizing an export that includes pans. GarageBand, for instance, has an "Auto Normalize" option for exports that, I think, normalizes to 0dB after
all pans are taken into account. If my understanding is correct, this is a very important option to avoid clipping. To test, this is what I did:
- 1. Created a new recording. I was presented with a blank screen.
2. Generated a mono 1 kHz, 1 second tone with an amplitude of 1.0.
3. Created a new audio track and generated a mono 1 kHz, 0.5 second tone, amplitude 1.0.
4. Panned both fully left.
5. Played the recording. It sounded as it should: the first 0.5 seconds at a certain volume (distorted), the next 0.5 seconds at half that volume (no distortion).
6. Exported and opened the exported file. As expected, the first 0.5 seconds showed serious clipping, the next 0.5 seconds appeared as it should.
Other than manually adjusting levels beforehand (i.e. in a multitrack recording, reduce the gain of all tracks by the same amount and hope the reduction was enough to avoid clipping; if not, try again) can Audacity analyse the entire recording, find the maximum level after pans are taken into account, then reduce the gain on all tracks so that the exported file has a maximum level of 0dB (or other value)?
I hope it can. Audacity will be of little use to me as a multitrack recorder if it cannot.