Using Matthew Lane stereo delta for wider sub bass

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I like this stereo delta from Matthew Lane cause its insanely easy to use. Definitely can give your mono bass a wider sound. Anybody else have any success with it?
https://youtu.be/3_FrSxaecYA

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If you follow Dave Pensado's advice, you can hardly go wrong...

https://www.pensadosplace.tv/
https://en.wikipedia.org/wiki/Dave_Pensado

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Kwurqx wrote: Fri Apr 05, 2019 11:47 am If you follow Dave Pensado's advice, you can hardly go wrong...

https://www.pensadosplace.tv/
https://en.wikipedia.org/wiki/Dave_Pensado
yeah

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scpstu wrote: Fri Apr 05, 2019 5:52 pm
Kwurqx wrote: Fri Apr 05, 2019 11:47 am If you follow Dave Pensado's advice, you can hardly go wrong...

https://www.pensadosplace.tv/
https://en.wikipedia.org/wiki/Dave_Pensado
yeah
Yeah indeed.

But on the subject of widening (and narrowing).

Generally bass does not really contribute to the perception of the stereo image the way mids and highs do. Also they are generally perceived as less directional. This is why the lower frequencies tend to live in or near the center. This is why there are many tools to actually narrow the stereo width for lower frequencies. Like the free Sanford Sound Design - Bass Tightener
https://www.kvraudio.com/product/sanfor ... und-design

Also there tends to be a lot of per partial energy in the lower partials/frequencies. Also there tend to be less partials (per octave). Not respecting these properties can easily lead to audible phase cancellation. Either by periodic phase cancellations due to (slightly) detuned partials (e.g. from 2 detuned oscillators). Or by intentionally intruduced phase changes (even inverted phase).

On the other end of the spectrum. Very high frequencies are also not well perceived as directional. This is because the individual phase differences between seperate very short cycles (arriving at the left and right ear at slightly different times) get to small to discern by mere humans. They do give a sense of space though.

Both detuning LEFT and RIGHT and phase shifting/changing LEFT and RIGHT work fine to create a sense of space on headphones, where LEFT and RIGHT are strictly seprarated (unless the design is VERY open). But in free air LEFT and RIGHT interaction can lead to less of the intended effect. When going MONO the unintended effects can even be pretty destructive and persistent. Recently there was a thread here where the kick was L/R phase inverted. An extreme case of a not mono-compatible solution to width.

Stereo Chorus and Phasers use voice multiplication, detuning and phase modulation of multiple signals as a basis. Check out the free Acon Digital - Multiply or Blue Cat's Chorus or Phaser.
https://www.kvraudio.com/product/acon-d ... on-digital
https://www.kvraudio.com/product/blue-c ... -cat-audio
https://www.kvraudio.com/product/blue-c ... -cat-audio

Since a delay generally creates a phase difference, some wideners use different delaytimes on LEFT and RIGHT as a method. When used with some care, very effective. This is demonstrated by the free Voxengo - Tempo Delay
https://www.voxengo.com/product/tempodelay/

The relative changing the relative phase just a little bit is also referred to as the Haas effect. The free Venn Audio - Haas demonstrates this effect.
https://www.kvraudio.com/product/quick- ... venn-audio

Modulation of the individual phases of individual partials (or frequency bands) is a safer option then messing with the whole signal. Less prone to unintended and persistant phase cancellation issues. This is a reason why many reverbs and wideners and stereoizers modulate the phase of multiple seperate parts of the spectrum (e.g. using allpass filters), instead of modulating the phase of the whole signal.

The lowest risk of phase cancellation issues is when the modulation is not static but dynamic. A free example of dynamic widening (and narrowing) is the brilliant Izotope - Ozone Imager
https://www.kvraudio.com/product/ozone- ... zotope-inc

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:tu: :phones:

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