31 Jul
2008
31 Jul
'08
12:06 p.m.
Am Donnerstag, 31. Juli 2008 schrieb Adrien DANIEL:
On Thu, Jul 31, 2008 at 1:27 PM, Arnold Krille
<arnold(a)arnoldarts.de> wrote:
But for making music with (real) instruments these are the important factors.
Of course you can add jitter-buffers to sync all the input- and
output-soundcards in software. But this adds a lot of latency. Something like
syncing two VoIP/Mobile phones with their sometimes horrible latency (which
you can hear when the echo-cancellation doesn't work correctly). And then try
to play non-experimental, non-electronic music about that...
Apart from the fact that there are ways of doing
this in software (with
all the latency and uncertainty that arises there), you should *please*
look at the archives of this list and find out why it is nearly
impossible to do what you are thinking of.
In short: You definitely need to get the clocks of the converters in
sync. And you should also get the interrupts in sync.
I am aware of these sync
issues and I mentioned that in my second
post, however I read somewhere that it is possible to do this in
software with, as you said, some uncertainty. Of course, I voluntarily
left apart hardware sync, since it concerns expensive soundcards. Anyway, in my opinion, the idea to provide a *high
quality* guitar
(including a *high quality* ADC) that you could easily plug into your
computer to play music on a conventionnal hi-fi system is not so odd,
commercially speaking. Keeping this in mind, I was simply wondering
the extent to which it was possible to generalize this to several
instruments (especially in JACK), again because it does not require
any additional sound device or guitar amp.
Well, it requires additional devices: you do want to hear something. At least
the recording-engineer wants to hear what is on (digital) tape.
So you really have to sync all the devices by an external word-clock. Again:
firewire has a global bus-clock which devices (can) use to sync with so that
all devices on the bus have the same word-clock.
Arnold
PS: No need to CC me, I am subscribed...
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