* transferring data through the sound card
@ 2004-02-16 18:00 Nischal Saxena
2004-02-16 22:11 ` Jamie Lokier
2004-02-20 23:46 ` Pavel Machek
0 siblings, 2 replies; 5+ messages in thread
From: Nischal Saxena @ 2004-02-16 18:00 UTC (permalink / raw)
To: linux-kernel
hello,
how is it possible to transfer data across two PC using the sound card.
thanking u
Nischal
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: transferring data through the sound card
2004-02-16 18:00 transferring data through the sound card Nischal Saxena
@ 2004-02-16 22:11 ` Jamie Lokier
2004-02-17 15:30 ` Paulo Marques
2004-02-20 23:46 ` Pavel Machek
1 sibling, 1 reply; 5+ messages in thread
From: Jamie Lokier @ 2004-02-16 22:11 UTC (permalink / raw)
To: Nischal Saxena; +Cc: linux-kernel
Nischal Saxena wrote:
> how is it possible to transfer data across two PC using the sound card.
It's possible using a software modem, but it's much easier to use a
network card instead :)
-- Jamie
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: transferring data through the sound card
2004-02-16 22:11 ` Jamie Lokier
@ 2004-02-17 15:30 ` Paulo Marques
0 siblings, 0 replies; 5+ messages in thread
From: Paulo Marques @ 2004-02-17 15:30 UTC (permalink / raw)
To: Jamie Lokier; +Cc: Nischal Saxena, linux-kernel
Jamie Lokier wrote:
> Nischal Saxena wrote:
>
>> how is it possible to transfer data across two PC using the sound card.
>>
>
> It's possible using a software modem, but it's much easier to use a
> network card instead :)
>
Since Nischal didn't specify which port on the sound card he was thinking about,
I started to think that a SPDIF digital output / input, would give much better
results:
6 channels, 16 bit, 48KHz = 4.6Mbit/s
I don't know enough about the standard digital format and the maximum bandwidth
that we could get from a sound card, but in theory we probably could connect the
digital input on a sound card to digital output on another card (and vice-versa)
and map the whole thing as a network interface :)
Anyway, this is an extremely crazy, time wasting, "just do it if you have loads
of time to throw out the window" kind of project, because the cost of ethernet
NIC's is extremely low these days.
--
Paulo Marques - www.grupopie.com
"In a world without walls and fences who needs windows and gates?"
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: transferring data through the sound card
2004-02-16 18:00 transferring data through the sound card Nischal Saxena
2004-02-16 22:11 ` Jamie Lokier
@ 2004-02-20 23:46 ` Pavel Machek
2004-02-21 1:24 ` Michael Clark
1 sibling, 1 reply; 5+ messages in thread
From: Pavel Machek @ 2004-02-20 23:46 UTC (permalink / raw)
To: Nischal Saxena; +Cc: linux-kernel
Hi!
> how is it possible to transfer data across two PC using the sound card.
It would be actually pretty nice project ;-). Its not at all easy.
I was able to transfer data using dtmf and dtmf decoder (PC beeper to
internal microphone of notebook), but with advanced software much
better speed should be possible.
Pavel
--
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: transferring data through the sound card
2004-02-20 23:46 ` Pavel Machek
@ 2004-02-21 1:24 ` Michael Clark
0 siblings, 0 replies; 5+ messages in thread
From: Michael Clark @ 2004-02-21 1:24 UTC (permalink / raw)
To: Pavel Machek; +Cc: Nischal Saxena, linux-kernel
On 02/21/04 07:46, Pavel Machek wrote:
> Hi!
>
>
>> how is it possible to transfer data across two PC using the sound card.
>
>
> It would be actually pretty nice project ;-). Its not at all easy.
>
> I was able to transfer data using dtmf and dtmf decoder (PC beeper to
> internal microphone of notebook), but with advanced software much
> better speed should be possible.
I believe it's already being worked on (as a subset of what the
GNU radio project is doing - software modulation/demodulation -
just removing the requirement for down conversion):
http://www.gnu.org/software/gnuradio/gnuradio.html
~mc
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-02-21 1:24 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2004-02-16 18:00 transferring data through the sound card Nischal Saxena
2004-02-16 22:11 ` Jamie Lokier
2004-02-17 15:30 ` Paulo Marques
2004-02-20 23:46 ` Pavel Machek
2004-02-21 1:24 ` Michael Clark
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