[sdiy] Transporting line level audio in home / buzz-free USB wall warts?

[NT]

I agree that Sonos or some other networked home audio system is probably
the most elegant solution for this. The engineering is already done, most
are readily available and there's a bunch of different options.There are
many "best Sonos alternatives" lists to explore.

DIY option - If you search "DIY sonos raspberry pi" there should be a
handful of results
<https://www.whathifi.com/best-buys/the-best-sonos-alternatives-budget-and-premium-multi-room-options>giving
info on using Pi Musicbox or other software, but you'd still have to add a
speaker per unit, and RPi's aren't as cheap as they used to be.

other DIY zero latency option with decent audio quality... get a small FM
transmitter and some radios :)

Nathan

On Wed, Jul 19, 2023 at 3:57 AM Phil Macphail <phil.macphail at liivatera.com>
wrote:

> Have you considered first gen Sonos equipment? It’s pretty cheap on eBay,
> easy to install and synchronisation between units is what they do well. You
> won’t be able to make anything using any of the SBCs, Bluetooth or whatever
> a cheaply. Most importantly, you will spend time listening to it, rather
> than trying to get a number of general-purpose items to not quite work the
> way you want,
>
> Phil.
>
> > On 18. Jul 2023, at 13:48, cheater cheater via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >
> > Hey all, I wanted to move audio from my media pc to rooms in my home
> > and I was wondering if anyone had suggestions on an inexpensive piece
> > of gear that'll do that. I just want to listen to podcasts and some
> > music while i'm doing stuff around the house, nothing high quality,
> > but I'd prefer not to have hum and static and strong high freq
> > rolloff. I'd prefer to do this in analog so that I can turn on
> > multiple speakers and they're in phase. I'll be moving the audio over
> > a distance of ~ 10-15 meters to 4 different zones. In the target rooms
> > I'm going to hook up inexpensive bluetooth speakers with aux input
> > running off of a usb wall wart.
> >
> > Also looking for inexpensive European (Schuko-style) USB wall warts
> > that don't have a lot of ripple. I have tried a bunch (~10?) of
> > different usb power supplies over the years and almost all of them
> > make the speakers buzz audibly. The only one that I have that doesn't
> > do that is an ancient Samsung one that I got with I think my Galaxy
> > S3. I hope it never dies to be honest.
> >
> > Obviously a better power supply circuit in the bluetooth speakers
> > would make them not buzz, but I tried two different ones (starting
> > with Anker Soundcore 2 and most recently Earfun UBoom L) and they all
> > do that so... it is what it is.
> >
> > Best regards
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