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Posted: Wed Feb 13, 2008 5:26 pm
by laird
PS,
I am in hippy central, aka SE Portland.
Posted: Wed Feb 13, 2008 11:19 pm
by friend_kami
for me this happens alot with lower frequencies even though nothing is running on the red. i know its not my soundcard because its fine using other DAW solutions. its not my speakers either, because again what i said about other DAWs. infact it happens rarely and usually its not so much noticable, but it does happen and its quite annoying to have a slight ducking effect on something you dont want to duck.
like i said, all the faders etc are usually fine. pseudoducking if you wish heh, possibly because of headroom. limited to live only O.o
no idea. interesting though.
l7 btw.
ducking effect = phase cancellation?
Posted: Thu Feb 14, 2008 5:26 am
by shmaltz
Hi,
Have you considered phase cancellation? This occurs when two sounds are playing in an overlapping frequency range – a negative phase in one channel can cancel the positive phase in the other channel to produce reduced/zero amplitude for that frequency band. You could get around it by cutting the overlapping frequency. That is, solo track A and B together (or whatever combination of channels is causing the ducking - find the combination by systematically playing various combinations of tracks), put EQ eight on one of the problem channels, select the third or fourth filter type switch (bell or notch), deactivate 7/8 filters (so one is left on), increase Q to 18, "scroll" slowly through the frequencies with the freq knob until the ducking (phase cancellation) stops. You might need to notch many frequencies on many tracks in your song. This method is also known as subtractive EQ, so just google "subtractive EQ" to learn more.
Hope that solves it,
Posted: Thu Feb 14, 2008 6:33 am
by poops
Posted: Thu Feb 14, 2008 6:39 am
by poops
laird wrote:What version of Live are we discussing here?
What I am working with is 5
Re: ducking effect = phase cancellation?
Posted: Thu Feb 14, 2008 6:44 am
by poops
shmaltz wrote:Hi,
Have you considered phase cancellation? This occurs when two sounds are playing in an overlapping frequency range – a negative phase in one channel can cancel the positive phase in the other channel to produce reduced/zero amplitude for that frequency band. You could get around it by cutting the overlapping frequency. That is, solo track A and B together (or whatever combination of channels is causing the ducking - find the combination by systematically playing various combinations of tracks), put EQ eight on one of the problem channels, select the third or fourth filter type switch (bell or notch), deactivate 7/8 filters (so one is left on), increase Q to 18, "scroll" slowly through the frequencies with the freq knob until the ducking (phase cancellation) stops. You might need to notch many frequencies on many tracks in your song. This method is also known as subtractive EQ, so just google "subtractive EQ" to learn more.
Hope that solves it,
I'm postive it's not phase cancellation.
Thank you for the reply!
I'm gonna get to the bottom of this (I hope) when I visit my buddie's studio in a few weeks. He is also still using LIve 5. But, he does use an external sound card instead of the built in card, and he uses some awesome powered KRks.
And, If I don't hear "it" there, that will be enough to get me to do some upgrading.
"Built In" Sound Card on my Imac is a Burr Brown PCM3052 24/96.
reply
Posted: Thu Feb 14, 2008 12:19 pm
by bentti2000
im using ableton 7 m8 and i cant solve the problem its even happening when i burn the song to a cd if u find anything that helps will you let me know thanx m8
Posted: Thu Feb 14, 2008 3:07 pm
by friend_kami
not phase cancellation here either.
still happening, and still annoys me.
ducking = not phase cancellation
Posted: Fri Feb 15, 2008 1:46 am
by shmaltz
oh well, it was a worth a mention... good luck with it.
