Found a price indication on the other USB to I2S module, a bit high 250 Euro
second hand :-)
This is a bit more reasonable.
http://www.amanero.com/
79 Euro + vat and postage + Batches 60+ € 39
If we don't look in to assembling modules, then if someone does all the work
for free, then the actua
At 02:03 28/5/2013, Dave Malham wrote:
>On 15ips tape - yes, this is fairly limited in one way, that 20 k or less
>was often the cut-off frequency, that was the 3dB point, but the roll off
>was very slow, often only 6dB per Octave at first until near the first
>extinction point caused by the head
Apparently the reason that above 48 khz is frowned on by some is nothing to
do with niquist/the range of human hearing etc but rather distortions in
reproduction equipment when using very high sample rates that can introduce
artifacts and actually make things sound worse. This article makes this
po
My two penny worth...
On 15ips tape - yes, this is fairly limited in one way, that 20 k or less
was often the cut-off frequency, that was the 3dB point, but the roll off
was very slow, often only 6dB per Octave at first until near the first
extinction point caused by the head gap so it doesn't hav
On 27 May 2013, at 21:23, Sampo Syreeni wrote:
> 24/96 is already twice as much even as a non-shaped format, but perhaps has
> to be chosen evenso if we want to be sure it's transparent; as the next
> common format which includes both sufficient sampling rate and sufficiently
> low self-noise
On 2013-05-27, David Pickett wrote:
Correct me if I am wrong, but it seems to me that the reference in
this documents to "12 bits" concerns an already packed signal, which
needs to start off at a higher bit rate.
That's right. What they talk about is the final distribution format,
where you
Are you familiar with the JoeCo Blackbox Player?
http://www.joeco.co.uk/main/BBP_models.html
Len Moskowitz (mosko...@core-sound.com)
Core Sound LLC
www.core-sound.com
Home of TetraMic
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At 16:19 27/5/2013, Sampo Syreeni wrote:
In that debate, I'd take a look at the Acoustical Reneissance for
Audio position paper, aimed at influencing the rates and bitdepths
of DVD-A, at the time. (http://www.meridian.co.uk/ara/araconta.htm)
The limits it sets out says 48k is mostly enough, 56
On 2013-05-27, Augustine Leudar wrote:
That would be fine - there seems to be considerable debate amongst
engineers as to whether higher sampling rates than 48k are worth using
anyway
In that debate, I'd take a look at the Acoustical Reneissance for Audio
position paper, aimed at influencing
That would be fine - there seems to be considerable debate amongst
engineers as to whether higher sampling rates than 48k are worth using
anyway
On 27 May 2013 16:00, Dave Malham wrote:
> I should have pointed out that the output boards were connected via the
> O2's PCi bus and were only 16 bit/
On 2013-05-27, Dave Malham wrote:
I should have pointed out that the output boards were connected via
the O2's PCi bus and were only 16 bit/48k - but then the processor's
clock was only 180 MHz (iirc) in the machines we had.
If I'm not wrong, the O2 had a pretty decent I/O architecture apart
I should have pointed out that the output boards were connected via the
O2's PCi bus and were only 16 bit/48k - but then the processor's clock was
only 180 MHz (iirc) in the machines we had.
Dave
On 27 May 2013 12:30, Augustine Leudar wrote:
> Hi Jörn,
> Thanks for making me aware of the un
I suspect it probably would run it if you don't use too high a sampling
rate. Our old Unix based SGI O2's use to run 8 channels quite happily, even
if the audio was sent over Ethernet using the server/client part of the
TCL/Tk Snack audio toolkit. The processors in the Beagle boards are a bit
quick
Hi Jörn,
Thanks for making me aware of the unit - its a way better solution than
buying a motu and a larger computer. do you think this will run all 8
channel on the rasberry pis version of linux ?I laid 20m long unbalanced
RCA cables at the last installation wihout any problems so that should be
On 05/23/2013 01:25 PM, Augustine Leudar wrote:
Hello all,
I want to start making a standalone 8 channel player (maybe more) -
something that can be used in museums, festivals etc for sound
installations that can just be turned on and will instantly start looping a
multichannel composition on an
Sampo, the problem with ASIC is you have to spend millions to get a working
chip. FPGA is much, much more flexible and basically the stepping stone to
designing ASIC (i.e. a lot of the tools are the same, but if you screw up
you can just reflash instead of having to order a new chip). So its worth
For info, some approx prices ( inc uk vat);
Beaglebone£36
AM3359 CPU £30
ADAU1966 DAC (16 channel 24 bit balanced out, 200kHz
£13 (yes that's thirteen...)
The evaluation board for the DAC is around £250 so not a viable option for
production but a good way of
Chapman
Sent: den 24 maj 2013 10:36
To: Surround Sound discussion group
Subject: Re: [Sursound] Making a standalone 8ch PLayer
Sampo à écrit:
Seriously, if even this kind of a list really wanted to make something happen,
we could easily forget about PLAs, FPGAs, Arms, Intels and everything else
Sampo à écrit:
Seriously, if even this kind of a list really wanted to make something
happen, we could easily forget about PLAs, FPGAs, Arms, Intels and
everything else. The price of a pure pedal-to-the-metal ASIC is so low,
and it's allure so great to major hardware manufacturers (if done
right),
As a follow up to the postings of Dave Malham and Sampo Syreeni I want to put
in a bit of information that Google have found for me during a number of hours.
As far as I can find I2S based DA audio interface is the way to go.
Until very recently most if not all DIY interfaces have been done fo
On 2013-05-23, Dave Malham wrote:
I looked into this a year ago and the RPi unfortunately is crippled
for this because the processor used only supports two channels of
audio - HDMI iirc actually only allows for multichannel though it
mandates stereo.
BTW, this discussion brings to my mind an
I looked into this a year ago and the RPi unfortunately is crippled for
this because the processor used only supports two channels of audio - HDMI
iirc actually only allows for multichannel though it mandates stereo. The
BeagleBoard (or rather the BeagleBone) is a better choice though slightly
more
On 23/05/2013 17:17, Simon Edmonds wrote:
Ooops - I'll try that again
Raspberry Pi has HDMI
HDMI supports 8 channels of HD digital audio
I wasted a lot of time trying. I think the RPi only supports two
channels on HDMI, or did six months ago.
Jackd also seemed to be broken, although some so
Ooops - I'll try that again
Raspberry Pi has HDMI
HDMI supports 8 channels of HD digital audio
then a breakout box to take the 8 channels of audio to analogue?
Simon Edmonds
Logic Workshop Limited | Strategic, Technical & Creative Marketing Services
___
then a breakout box to take the 8 channels of audio to analogue?
Simon Edmonds
Logic Workshop Limited | Strategic, Technical & Creative Marketing Services
Ty Llwyd House | Nantyderry | Abergavenny | Monmouthshire | NP7 9DG | UK
___
Thanks Ben and Alexis ! Great info - Ben I would definitely be
interested in that code - Alexis your project sounds amazing (;
best,
Gus
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> On Behalf Of Ben Bloomberg
> Sent: den 23 maj 2013 15:28
> To: Surround Sound discussion group
> Subject: Re: [Sursound] Making a standalone 8ch player
>
> I have some FPGA code to drive 4 and 8 channel Burr Brown DACs (PCM3168a,
> PCM1608) I could pass along.
>
>
That sounds awesome and very useful.
This system was intended to be very, very low cost with home-theater grade
DACs. The whole thing including processing and DACs is intended to be under
$200 for up to 32 channels to put this stuff in the hands of high school
and academic theaters, who could buy
Message-
From: sursound-boun...@music.vt.edu [mailto:sursound-boun...@music.vt.edu] On
Behalf Of Ben Bloomberg
Sent: den 23 maj 2013 15:28
To: Surround Sound discussion group
Subject: Re: [Sursound] Making a standalone 8ch player
I have some FPGA code to drive 4 and 8 channel Burr Brown DACs
I'm working on having this implement a 4th order ambisonic decoder.
The cool thing here is that there is a dual core arm processor on board
that can
run linux, so I can have a 40 or more channel hardware interface and
have it act as
an output that takes a 4th order ambisonic signal from software.
I have some FPGA code to drive 4 and 8 channel Burr Brown DACs (PCM3168a,
PCM1608) I could pass along.
It's quite messy and I haven't worked on it in a while (4 years) but it
also implements a 3rd order ambisonic encoder/decoder and streaming input
via USB. The coefficients are all stored in a LUT
I am working on a system that can drive 40 or so channels based on a zynq
7020 processor.
The zedboard which is the dev kit i am working with costs 320 for academics
and ~400 for commercial uses.
This will then drive a series of dac boards that I am working on. They are
likely to cost about 200 e
Hi Alexis,
yes the box would need DA converters if thats what you mean. I am thinking
8 outputs to start with min 16 bit 44.1 but it would be nice to have
something that could be easily customisable for more
On 23 May 2013 14:08, Alexis Shaw wrote:
> Do you need internal dacs.
>
> How many
>
> Hi Michael ,
>
been there done that - I synced up multiple stereo players that
automatically start playing on power on on many occasions - however I dont
want to do that anymore partly because the SD card players that start
playing on powerup are expensive and because I dont trust the timing
Do you need internal dacs.
How many channels do you need implemented.
I am working on a solution to the same problem at the moment.
On Thursday, May 23, 2013, Marc Lavallée wrote:
> That's an interesting idea: clustering Raspberry Pis
> with cheap 8 channels usb modules and jackd2.
> --
> Marc
That's an interesting idea: clustering Raspberry Pis
with cheap 8 channels usb modules and jackd2.
--
Marc
"Michael Chapman" a écrit :
> > Hello all,
> > I want to start making a standalone 8 channel player (maybe more) -
> > something that can be used in museums, festivals etc for sound
> > in
> Hello all,
> I want to start making a standalone 8 channel player (maybe more) -
> something that can be used in museums, festivals etc for sound
> installations that can just be turned on and will instantly start looping
> a
> multichannel composition on an sd card. At the moment I am using rat
Hello all,
I want to start making a standalone 8 channel player (maybe more) -
something that can be used in museums, festivals etc for sound
installations that can just be turned on and will instantly start looping a
multichannel composition on an sd card. At the moment I am using rather
unwieldl
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