[SGVLUG] Audio mixing suggestions

[Jess Bermudes via SGVLUG]

Regarding the Pi visualization, the cheap lazy part of me would want to
replicate that in software instead of hardware. Get a Pi, hook it up to a
27 inch monitor, and find a Linux based audio player that has visualization
modes. And if I really wanted that dot effect, I suppose there would be
libraries I could use to put together something that looked like how it
looks in the video. That's just a frequency domain graph, right?

Maybe something like this?
https://github.com/dpayne/cli-visualizer

 - Jess

On Mon, Jul 8, 2019 at 11:42 PM Matthew Campbell via SGVLUG <
sgvlug at sgvlug.net> wrote:

> I just finished building a couple of new speakers and am now considering
> their feeding.  Any suggestions from the audiophiles in the SCALE/AV group
> or aficionados of any stripe are appreciated.
>
> I currently am driving a carver amp from an old cell phone running Android
> through a small 4-channel mixer:
>
> https://www.sweetwater.com/store/detail/ProFX4v2--mackie-profx4v2-4-channel-mixer-with-effects
>
> Adding the 2 new subs requires a bi-amp setup.  I was running the sub out
> of the headphone jack through a low-pass filter for testing, but am looking
> for a better solution for production. Something like the NHT X2 sounds
> interesting, do any of you have experience with this?
>
> https://dk1xgl0d43mu1.cloudfront.net/user_files/nht/downloads/000/003/172/X2_Manual.pdf
>
> I also think there must be a way to do this with a larger mixing  board.
> What other approaches are worth inspecting?
>
>
>
> On a separate project I am thinking of running a video display off the
> board through a custom Pi input.  I played with a LM3915 equivalent back in
> high school to good effect.
> https://www.elprocus.com/visualized-audio-level-display-using-lm3915/
>
> Here's the kind of project I had in mind.  This is a video of a commercial
> product, anyone build something along these lines recently?
> https://youtu.be/PAjNA0UocOs
>
> Matt
>
> ---------
> Matthew Campbell
> Architect Lead, Office of the CTO
>
> Kaiser Permanente
> Green Center 041R08
> 99 S. Oakland
> Pasadena, CA 91101
>
> 626-564-7228 (office)
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> ---------
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>
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