2 Jan
2005
2 Jan
'05
5:15 p.m.
I have a system similar to what you are thinking about
Each destination is equiped with speakers only. At
this time, the
speakers are wired to a central location
Yep. I use 2 USB soundcards to give me 6 stereo channels. I can play
6 different mp3 sources to 6 rooms.
..
I want to replace the SonAMP 260 with a multizone
amplifier or a bank of
amplifiers.
I use a hodgepodge of amps currently. Volume control in software
(as well as loudness and misc signal processing via LADSPA plugins)
I want to be able to hook my sources up to a linux box.
I want
the linux box to also be a source so I could load CD's and have it act
as a jukebox. Then all outputs will go from the linux box into the bank of
amplifiers which in turn is hooked to the speaker pairs throughout the
house.
Yep. In addition to mp3s I support a D-link USB FM radio, internet
streaming audio (eg NPR programs via realaudio protocols) and synthesized
voice prompting.
I want to control zone / source and volume through a
web browser
application. That way, technically I could control everything from one
console
I use dumb X10 controllers ($10) and let the PC interpret the button pushes
- not very practicle though. But then I'd like to
distribute - at
geographically convenient locations throughout the house - small, wall
mounted touch screen
browser "appliances" (for lack of a better description) - which would be
used to run the web app and control the system anywhere I choose to
place one.
Voice prompts and speech recognition are the future :-) and oddly enough
the cheapest solution hardware-wise.
Today I'm running 2.6.7-1.437.1.ll.rhfc2.ccrmasmp, Ingo's newer stuff
doesn't work for me (either because of usb or my 3ware scsi card). My
performance is OK, I get the occasional xrun, but basically I'm pretty
happy running 6 stereo audio outputs and 4 mono audio inputs 24/7
The worst thing, CPU-wise, is sample rate conversion. My usb soundcards
(EMI 2|6 and Maya EX7 USB) run at 48KHz and my mp3s are usually 44.1Khz. Its
about 5% cpu per stereo channel (P4 HT 2.8 Ghz) to convert this. Mp3 decode is
nothing by comparison. Sample rate conv is courtesy libsamplerate and mp3
decode is via MAD.
Its all controlled by a custom home automation app and portaudio. I used to
run through jack but when I went to 2 soundcards jack wasn't supporting more
than one (it does now). I use jack with its dummy driver now for eye-candy
apps: meterbridge etc
Well, a bit OT. Hope this was of interest to some of you.
3 Jan
3 Jan
1:01 p.m.
On Sun, Jan 02, 2005 at 02:14:59 -0800, Andrew Burgess wrote:
Its all controlled by a custom home automation app and
portaudio. I used to
run through jack but when I went to 2 soundcards jack wasn't supporting more
than one (it does now). I use jack with its dummy driver now for eye-candy
apps: meterbridge etc
Nice description of your setup, for contrast I use a bunch of slimp3
players on a combination of wired and wireless networks.
http://www.slimdevices.com/ - great boxes, they do the sample rate
conversion and mp3 decoding in the box, and have spdif and analogue
outputs to feed amps. They can be linked for multiroom synced stuff, or
run individually, and can be controlled via apache, or using a UDP
protocol. The screens are really bright and easy to read.
I did consider a 'real' multiroom system hwne I moved in, but as I've only
just (literally) got round to tacking and boxing the cat5 cable that links
the upsairs and downstairs (previously it was hanging in loops from the
stairs, and anoying up by girlfrind no end). I moved in 2.5 years ago,
so I'm glad I didnt attempt anything complicated :)
BTW, I not sure wether to be flattered or insulted that you called
meterbrdige "eyecandy" ;)
- Steve
4 Jan
4 Jan
9:28 a.m.
Hi Andrew,
Andrew Burgess wrote:
Its all controlled by a custom home automation app and
portaudio. I used to
run through jack but when I went to 2 soundcards jack wasn't supporting more
than one (it does now). I use jack with its dummy driver now for eye-candy
apps: meterbridge etc
Can you explain how you use the dummy driver for this? If I try the
dummy driver the jack serve can't start. Do I need to be root for this?
Cheers,
Andres
2:11 p.m.
New subject: [linux-audio-user] Re: Feasibility of Crestron like Linux Based Whole
On Sun, 2005-01-02 at 14:14 -0800, Andrew Burgess wrote:
I have a system similar to what you are thinking
about
You could also do this with an emu10k1 or emu10k2 based card, anything
that has 6 channels of output (like the 5.1, or anything with the
LiveDrive, which gives a headphone out). These can be used as 6
independent mono channels, or 3 stereo streams. Plus this card
resamples in hardware which makes things a lot easier.
Lee
Each destination is equiped with speakers only.
At this time, the
speakers are wired to a central location
Yep. I use 2 USB soundcards to give me 6 stereo channels. I can play
6 different mp3 sources to 6 rooms.
7086
days inactive
7088
days old
linux-audio-user@lists.linuxaudio.org
3 comments
4 participants
participants (4)
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Andres Cabrera -
Andrew Burgess -
Lee Revell -
Steve Harris