Brandon wrote: I have been using a technique for big bottom bass and it works really well.

I use Adobe Audition. These are completed stereo mixdowns.

I isolate the low-bass, then pitch-stretch down 1 whole octave.

Then I boost that up +3 or even +6 dB, then mix-paste with the orignal file.

MY QUESTION(S):

Is there a name for this? Are there any common rules I should follow when using this technique? Do I need to rolloff at say 40 Hz before or 20 Hz or so after doing this?

I am using this for southern-rock type of material and it sounds fantastic.

Is this technique used in hip-hop material to get that low-low bass? Is there a (free?) plugin available for this purpose?

Thanks in advance, and if you would like to hear some samples I have plenty.

Some bass players (and some guitarists) use an effects device called an octaver which does this (adding low, and sometimes also high octaves).

Do NOT overuse this effect. I repeat, DO NOT overuse this.

this has been around for a very long time. MaxBass from waves incorporates a bit of this as well as harmonics above the fundamental. There are also boxes like the dbx120 and other subharmonic synths. It's a fun thing until your ear gets tuned to it, it has a synthy sound and feel to it. It also displaces the harmonic structure so it sounds un natural. It can be usefull for those mixes that don't have any bottom. But for mixes that do have bottom, eq'ing tends to do a better job. Use it very very sparingly if you need to, and keep an ear open to what it's doing to the mix.

thanks for all the input.

that's pretty much what i expected to hear, and yes i have been using it only when eq wasn't working.