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在網上看了一些資料, pan law 只影響mixing時的panning, 單一個stereo軌置中是不影響的, 如果是這樣, sam的表現就有點奇怪, 因為我把abyss的分軌用不同的daw都導一次, sam pro x(預置pan law是 0) 比其他的daw都要寬上很多.......
#Pan Law
(Doesn't apply to true stereo files.)
If all you are playing is a stereo file then changing pan law won't affect anything. pan law affects the level of mono signals panned other than hard left of right. You select pan law setting from project menu. This only effects the mix so it does not matter whether you've recorded with a different level and then change the setting during mixdown.
The differences between pan laws effect the volume only if a track is panned to CENTER. You can hear it from both speakers, but if the same track is panned hard left or right, the relative volume drops as the sound is coming from one speaker only.
Different pan laws define how much track volume is lowered when panned dead center. The track remains the same volume with a -3dB pan law, even if you pan the track over entire stereo field.
The basic rule is, that if amplification power is doubled, the increase in a- weighted sound pressure level is 3 dB (ln(20)). I.e. if You add another Marshall stack stack next to Your existing one and use same settings on both heads overall sound level is only 3dB higher.
Some engineers preferred to drop the center level a bit more, either because they liked the signal to seem louder as it moved out of the main center zone, or because signals that â?œclumped upâ?� around the center tended to â?œmonoizeâ?� the signal. So, dropping the centered level a little further emphasized the stereo effect somewhat.
Summing two identical sources will is a 6dB increase, making the 6dB panning law seem more intuitive, but the other factors you mentioned may be what keeps it from working well for everyone in practice. Summing two non-correlated sources gives a 3dB increase. I guess the 4.5 guys were shooting for a happy medium.
To see what the Pan Law is doing, try different settings with a mono channel panned hard left or hard right - there will be no difference in the mix. It is only when you start panning toward center that different pan laws give different levels. But any difference in level from one pan law setting to another can be countered by adjusting the fader.
Of course, if you change the Pan Law and do not adjust the mono panners and faders, you get a different mix.
Also realize that the pan law settings do not affect stereo tracks nor hard panned mono tracks.
[ 本帖最后由 himhui 于 12-5-16 14:58 编辑 ]
#Pan Law
(Doesn't apply to true stereo files.)
If all you are playing is a stereo file then changing pan law won't affect anything. pan law affects the level of mono signals panned other than hard left of right. You select pan law setting from project menu. This only effects the mix so it does not matter whether you've recorded with a different level and then change the setting during mixdown.
The differences between pan laws effect the volume only if a track is panned to CENTER. You can hear it from both speakers, but if the same track is panned hard left or right, the relative volume drops as the sound is coming from one speaker only.
Different pan laws define how much track volume is lowered when panned dead center. The track remains the same volume with a -3dB pan law, even if you pan the track over entire stereo field.
The basic rule is, that if amplification power is doubled, the increase in a- weighted sound pressure level is 3 dB (ln(20)). I.e. if You add another Marshall stack stack next to Your existing one and use same settings on both heads overall sound level is only 3dB higher.
Some engineers preferred to drop the center level a bit more, either because they liked the signal to seem louder as it moved out of the main center zone, or because signals that â?œclumped upâ?� around the center tended to â?œmonoizeâ?� the signal. So, dropping the centered level a little further emphasized the stereo effect somewhat.
Summing two identical sources will is a 6dB increase, making the 6dB panning law seem more intuitive, but the other factors you mentioned may be what keeps it from working well for everyone in practice. Summing two non-correlated sources gives a 3dB increase. I guess the 4.5 guys were shooting for a happy medium.
To see what the Pan Law is doing, try different settings with a mono channel panned hard left or hard right - there will be no difference in the mix. It is only when you start panning toward center that different pan laws give different levels. But any difference in level from one pan law setting to another can be countered by adjusting the fader.
Of course, if you change the Pan Law and do not adjust the mono panners and faders, you get a different mix.
Also realize that the pan law settings do not affect stereo tracks nor hard panned mono tracks.
[ 本帖最后由 himhui 于 12-5-16 14:58 编辑 ]