These Line 6 units are well respected in the electric bass world,
especially considering their moderate price. I think bass players
appreciate tight timing, and the low lag may be one reason these units
are popular. Also, they have proven to be rugged enough to be
"road-worthy". They can also model the hi-frequency lossiness of cords,
though that seems of dubious value in your case.
Phil
On 3/1/13 12:24 PM, katja wrote:
Apparently, Line 6 managed to build a digital 2.4 GHz wireless with <4
ms latency, the Relay G30, G50 etc . They do not write it in the
specs, but most users don't notice latency and when they do, their
support is speaking of latency as low as that:
http://line6.com/support/thread/33898
This weekend I will do some WiFi experiments and see how fast it can
go locally, using mrpeach udp and tcp classes. If it works, one could
use a wireless router which has no other task than routing Pd audio,
and the computer at the receiving end could be a cheap headless board
with no other task than receiving Pd audio and converting it to
analog. Together the receiving device could be the size of a
weight-watcher's lunch box, while at the transmitter side the
computer's built-in stuff is used. Maybe I'm a bit naive here, anyway
I'll report results from experiments.
Katja
On Fri, Mar 1, 2013 at 2:14 PM, richard duckworth
<richduckwo...@yahoo.com <mailto:richduckwo...@yahoo.com>> wrote:
OMG - that's really high! Maybe Tranz have a belt holder solution
- they do look kind of bulky though! Maybe worth dropping them a
line, see if they'll help the Pd community
Rich Duckworth
Lecturer in Music Technology
Department of Music
House 5
Trinity College
Dublin 2
Ireland
Tel 353 1 896 1500
"Digital?
Is that the thing where they take a good old sine wave and they
chop it up into little bits?" --- Rupert Neve
------------------------------------------------------------------------
*From:* katja <katjavet...@gmail.com <mailto:katjavet...@gmail.com>>
*To:* Antoine Villeret <antoine.ville...@gmail.com
<mailto:antoine.ville...@gmail.com>>
*Cc:* richard duckworth <richduckwo...@yahoo.com
<mailto:richduckwo...@yahoo.com>>; "pd-list@iem.at
<mailto:pd-list@iem.at>" <pd-list@iem.at <mailto:pd-list@iem.at>>
*Sent:* Friday, 1 March 2013, 13:12
*Subject:* Re: [PD] wireless audio from Pd to PA system (katja)
Found more info about TI's PurePath wireless. Latency of wireless
transmission is 768 samples minimum. Added to this must be the
latencies of ad/da conversion.
http://e2e.ti.com/support/low_power_rf/f/382/t/110331.aspx
Forget about it, this concept is only useful for home entertainment.
Katja
On Fri, Mar 1, 2013 at 1:19 PM, katja <katjavet...@gmail.com
<mailto:katjavet...@gmail.com>> wrote:
Thanks everyone for your answers.
The case is unconventional because a stereo line signal must
be sent from the computer. Professional wireless systems
assume mic or instrument. Consumer systems do transmit stereo
signal, but without bothering too much about latency.
Frankly, I did not expect the difficulty to find a good
solution. Initially I wanted the wearable computer for a music
video which is to be recorded live with sounds from natural
objects. I bought the FM transmitter so my cameraman will be
able to hear the music while he's filming. For this purpose it
is ideal. Then I thought it would be good to use the computer
in it's wearable mode for public performance. I figured that
one of the many wireless solutions would suit the purpose, but
didn't reckon with the unusual requirements.
Further searching brought me to a new technology 'PurePath'
from Texas Instruments. It has a range comparable with WiFi
(30m), while it seems to work with paired devices as in
Bluetooth. I haven't seen consumer products with this
technology, but development kits are available. A rather
convincing demo is here:
http://www.youtube.com/watch?v=0YsnZQUfVGs
If this system can work with low latency it could be perfect
for wireless Pd.
Katja
On Fri, Mar 1, 2013 at 11:41 AM, Antoine Villeret
<antoine.ville...@gmail.com
<mailto:antoine.ville...@gmail.com>> wrote:
hello,
those are good for what they have been designed for and it
depends on what you mean by "exellent sound quality"
I've made few tests on those few years ago and the
bandwidth could be good enough to transmit guitar/bass
signal but nothing else for me
+
a
--
do it yourself
http://antoine.villeret.free.fr
<http://antoine.villeret.free.fr/>
2013/2/28 richard duckworth <richduckwo...@yahoo.com
<mailto:richduckwo...@yahoo.com>>
Hi Katja
one of these would do it - check with Thomann tech
support for gain issues (these are Instrument Level
input) They should be fine however as active guitar
pickups (like heavy style EMG pickups) output quite
high levels. These type of wireless systems tend to be
very rugged, have excellent sound quality and long
battery life - and you'll want these things.
http://www.thomann.de/ie/cat.html?gf=wireless_for_guitar_bass&oa=pra
Rich Duckworth
Lecturer in Music Technology
Department of Music
House 5
Trinity College
Dublin 2
Ireland
Tel 353 1 896 1500
"Digital?
Is that the thing where they take a good old sine wave
and they chop it up into little bits?" --- Rupert Neve
------------------------------------------------------------------------
Message: 3
Date: Thu, 28 Feb 2013 11:53:43 +0100
From: katja <katjavet...@gmail.com
<mailto:katjavet...@gmail.com>>
Subject: [PD] wireless audio from Pd to PA system
To: pd-list <pd-list@iem.at <mailto:pd-list@iem.at>>
Message-ID:
<cafy0eappskfw+gvaxutr7exhqlig+ptdu8rk6sntraliys2...@mail.gmail.com
<mailto:ptdu8rk6sntraliys2...@mail.gmail.com>>
Content-Type: text/plain; charset=ISO-8859-1
For a wearable live performance computer, I am looking
into the
options of sending wireless audio from Pd to a PA
sound system and
other listeners.
In a first experiment I've tried a Linex FM
transmitter. Audio quality
is good enough, and FM transmitters do not introduce
latency. This
option is cheap and flexible, as the signal can be
received by simple
radio's, which are even built into cell phones and
media players. I
would need to boost the transmission a bit to make it
more reliable.
This will of course make the equipment illegal. Even
then, the risk
that someone else is transmitting a stronger signal on
the channel can
not be excluded.
Another option could be to send audio over Wifi. This
would require
WLAN to be available, and one extra computer (with
audio interface) as
a receiver. To avoid extra latency the audio should be
sent
uncompressed, like [udpsend~] / [udpreceive~] can do
it. This has the
risk of packet loss and serious dropouts.
I've been searching for 2.4 GHz wireless music
receivers and found
things like this:
http://www.sitecom.com/en/wireless-music-streamer/wl-061/p/203.
They
seem to act like external soundcards for your
computer. In Linux
though I've never managed to properly connect multiple
soundcards with
Pd (in OSX it's easy using the Aggregate Device Editor
from Audio MIDI
Setup). Also I guess these devices introduce huge
latency. With audio
over bluetooth headsets I've experienced latencies up
to a second.
Does anyone use a satisfactory method in practice, to
send audio from
Pd without wires?
Thanks,
Katja
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