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#1
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Bass Tracks out of phase
I recorded bass on 2 tracks using direct thru the avalon 737 and a ampeg amp. I thought there was no phasing problems, but after the tracks were recorded I now having phasing. What can I do to fix this? Is there a plugin that will help?
Thanks JE
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JLE |
#2
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Re: Bass Tracks out of phase
You need to time align your Basstracks, either delay your direct track to match the phase of your miced track or you can nudge the direct track backwards until they are in phase.
good luck |
#3
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Re: Bass Tracks out of phase
the above post is incorrect. time alignment does nothing for phase.
If indeed they are out of phase, that is one track is inverted with respect to the other, apply a 1 band eq, and click the phase reverse button in the upper right hand corner. (apply, don't insert, to prevent latency.) Once that is done, then check time alignment. If both waves do not line up along the timeline the same, shift the mic back by dragging it until it does. (you may need to delete a few ms at the beginning of the track to do this, but that should not be a problem unless you started recording the exact moment the bassist started playing.) This method is a common practice here, going both direct and micing our '62 Ampeg B-15-N. The DI is often phase inverted from the Amp, and the mic is always a few ms behind the di. Once aligned, you will have yourself one kick *ss bass sound. If your amp is inverted, you might want to check the phase of the speaker cabinet. Hope this is helpful. |
#4
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Re: Bass Tracks out of phase
Or, use the AudioSuite Invert plugin.
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#5
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Re: Bass Tracks out of phase
If you select the track and apply, the plug in becomes part of the track. If you insert, ithe digital track goes through the virtual audio path, and you get latency.
If you know you are going to not want to revert back once saved, (like in the case of phase reversed tracks like this) Applying not only aviods latency, but saves CPU power for other plugins. Hope this is helpful. |
#6
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Re: Bass Tracks out of phase
In other words, use the AudioSuite plugins and process the file.
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#7
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Re: Bass Tracks out of phase
Quote:
Sure time aligning affects phase relationships. How would you explain what happens (as in this case) if you slowly nudge the DI basstrack against the Mic'ed track while playing, you can clearly hear the phase relationship between the signals change. /mike |
#8
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Re: Bass Tracks out of phase
If one of two identical signals are shifted in phase by 180 degrees(phase reversed), there will be absolutey no shift in time.
This has been discussed to death the past few weeks, and if you don't get it you should consider another career or hobby. The example in question regards two two distinctive principles. First, phase alignment. either both tracks are phased positive, negative, or one of each. We correct the negative one. Now we align the two positively phased tracks so they are identical. Hope this is helpful. |
#9
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Re: Bass Tracks out of phase
Hey where02190 Could you explain apply vs insert? Thanks, Steve
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#10
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Re: Bass Tracks out of phase
Quote:
If that would be the case that one of the tracks is of opposite polarity Yes you should flip polarity ("phase reverse") on one track to make both tracks positive or negative, preferbly postive. BUT!! in the case of combining a DI signal and a Mic'ed signal you would still be out of phase to some degree due to the Mic track is slightly delayed to the DI track. So you would need to time/phase-align the tracks to get them in perfect phase. So..obviously timealignment affects phase. Out of phase doesnt mean that your always 180degrees off, it can be anywhere between 0-180degrees. So flipping polarity doesnt automatically make you in phase. Quote:
Quote:
Check that site out there's a very informative description there. Basically what it does is delaying the DI signal by a user set parameter to the mic signal, and thus you can variably change the phase relationship between the two signals. Thats exactly what we do when we time/phase align tracks in the digital world,. Quote:
/mike |
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