IRQ and board assignment

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Richmo
Posts: 53
Joined: Sun Apr 13, 2003 4:00 pm

Post by Richmo »

Hi everyone,
I was just wondering...I have a pulsar 1 (IRQ=9) and a Pulsar 2 converted to a SRB 2 (IRQ=5). Is this OK ? Which board should be assigned 0 and which 1? I only ask because my 24 bit projects don't seem to sound any better than my 16 bit projects. I definitely have 10 DSPs. The I/Os are all via the P1.
I'm not very tech minded (yet) so I wondered if someone could please confirm this for me.
Bye for now!
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at0m
Posts: 4743
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Post by at0m »

Hi Richmo,

First, an IRQ does not change your sound. As long as you don't run into blue screens or clicks, there probably isn't much to worry about.

Pulsar2 should be the leading board, it has an ULLI chip: you can get latency below 13ms.

Here's an IRQ list, from high to lower priority:
0, 1, 8, 9, 10, 11, 12, 13, 14, 15, 3, 4, 5, 6, 7.
If possible, set both CW cards to IRQ9. If that can't be done, I'd swap both cards, so Pulsar2 has the IRQ9 (excellent priority!).

Welcome to z,

at0mic.
Richmo
Posts: 53
Joined: Sun Apr 13, 2003 4:00 pm

Post by Richmo »

Thanx AtOmic for your advice. What is the best or easiest way to change the IRQ? Or if I physically swap them around in the case should I uninstall them first using the device manager?
Also in the CSET.ini there is this:
[Host-Config]
Numboards=1
Board0=Host

Should I add the lines suggested in the manual i.e
[board0]
boardid=1

[board1]
boardid=0

<font size=-1>[ This Message was edited by: Richmo on 2003-05-09 03:13 ]</font>
Richmo
Posts: 53
Joined: Sun Apr 13, 2003 4:00 pm

Post by Richmo »

oh well, for anyone that's interested, I swapped the boards in the computer. Now P1 is IRQ 5, and P2 is IRQ 9. Also I had to change hostboard to 1. But now it sounds great! Which is nice!
Oh and I have latency of 4ms :wink:

<font size=-1>[ This Message was edited by: Richmo on 2003-05-14 01:24 ]</font>

<font size=-1>[ This Message was edited by: Richmo on 2003-05-14 08:37 ]</font>

<font size=-1>[ This Message was edited by: Richmo on 2003-05-14 08:38 ]</font>
endre70
Posts: 121
Joined: Thu Nov 14, 2002 4:00 pm
Location: All over the place.

Post by endre70 »

The easiest way to hear the difference between 16 bit and 24 bit is to record a cymbal in the two different modes.

16 bit dosnt reflect the nice "sisseling" top frequencies as a 24 bit would.

E.K.B.A
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