Out of phase bass

Posted by Ralph (M) on April 12, 2022 at 13:23:37

In Reply to: RE: This video explains a lot about mastering posted by B.K. on April 9, 2022 at 11:27:28:

- Is the reason for issues with bass in the LP.

Hill and dale was more for mono.

Passive processors can be used to make the bass by mono for a short period (perhaps a few milliseconds) when out of phase bass occurs.

If the two sides of the groove come together due to out of phase bass, that can knock the stylus out of the groove. The thing is, in most rooms the mono bass is no worries whatsoever, since at 80Hz the waveform is 14 feet long. Before your ear can sort out there's a bass note and what frequency it is, in most rooms the bass is entirely reverberant. So you would never be able to tell where it came from.

I've found that if you just study the recording project a bit, you can sort out how to cut the track without processing. For example you can cut the groove a bit deeper, and back off on the record level a tiny bit. 3dB will cut the excursion in the groove by half so even a 1dB change can be significant.

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Follow Ups Full Thread

Topic - Dynamic range limiting? - LtMandella 14:37:12 04/8/22 (26)

RE: This video explains a lot about mastering - tketcham 06:47:59 04/9/22 (8)

RE: This video explains a lot about mastering - B.K. 11:27:28 04/9/22 (7)

Out of phase bass - Ralph 04/12/2213:23:37 04/12/22 (0)

RE: This video explains a lot about mastering - tketcham 12:00:09 04/9/22 (5)

RE: This video explains a lot about mastering - John Elison 07:45:59 04/13/22 (4)

RE: This video explains a lot about mastering - Tre' 07:42:07 04/14/22 (1)

RE: This video explains a lot about mastering - John Elison 08:19:33 04/14/22 (0)

RE: A cannon shot by any other name? - tketcham 07:54:31 04/13/22 (1)

Exactly! haha! /nt\ - John Elison 07:59:44 04/13/22 (0)

RE: Dynamic range limiting? - Bry 19:12:46 04/8/22 (16)

Print through - Ralph 13:35:37 04/12/22 (12)

RE: Print through - John Elison 08:18:52 04/13/22 (10)

Which recording is that? None of the DD LPs I have do that. - Ralph 10:25:32 04/13/22 (9)

RE: Which recording is that? None of the DD LPs I have do that. - John Elison 10:54:48 04/13/22 (8)

That suggests a mastering problem? - Ralph 11:23:29 04/13/22 (7)

RE: That suggests a mastering problem? - John Elison 12:03:14 04/13/22 (6)

an alternative possibility - Ralph 12:13:28 04/13/22 (5)

RE: an alternative possibility - John Elison 14:39:02 04/13/22 (4)

OK- that makes good sense. - Ralph 11:47:39 04/14/22 (3)

RE: OK- that makes good sense. - John Elison 18:52:51 04/14/22 (2)

Only in the studio - Ralph 10:27:39 04/15/22 (1)

Same here! Only when recording vinyl... - John Elison 10:38:23 04/15/22 (0)

RE: Print through - tketcham 14:36:56 04/12/22 (0)

RE: Dynamic range limiting? - LtMandella 19:36:48 04/8/22 (2)

RE: Dynamic range limiting? - Tre' 16:55:42 04/9/22 (0)

RE: Dynamic range limiting? - Bry 19:49:02 04/8/22 (0)

Follow Ups

Out of phase bass - Ralph 04/12/2213:23:37 04/12/22 (0)

Out of phase bass

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