24 Bit Recording set up Question.

[Atomic Marshmallow]

Hi all,

I am new to this Pulsar stuff (I like what I see so far), so excuse me if this is a dumb and maybe blindingly obvious question.

I want to record in 24 bit rather than 16 bit. Now Logic is set up in "Audio Hardware and Drivers" to record in 24 bit, but do I also have to do that in a Pulsar environment too? What I mean is, should I also have ASIO 24 BIT SOURCE and DESTINATION modules in my project or doesn't that matter seeing that it is set up in Logic to record in 24 bit?
Do you understand my question?

While I am here. What is the difference between ASIO 24 Bit Source and ASIO 2 24 Bit source? Which should I use and why? Finally why is there an ASIO 24 Bit DEST module but no ASIO 2 24 bit destination module?

I hope my questions aren't too dumb. Please understand I am new in this stuff

Regards

[at0m]

Yes, these are a bit confusing... The main difference between ASIO and ASIO2 is the Clock input on the ASIO2 Dest. It can be used to slave the ASIO host to wordclock/SMPTE from an ADAT or so. Also, ASIO2 supports Direct Monitoring. Direct Monitoring is a way to monitor (before/while) recording without latency. This is accomplished in the ASIO driver (and sequencer setting), by sending any Direct Monitor signal straight to ASIO2 Source 1 L,R, instead of the ASIO sequencer to route it thru it's (native) mixer and then back to the DSP's.

For ASIO2, there is also only one Dest bitdepth type. The sequencer settings deceide what bitdepth the material is recorded in.

I've seen people use ASIO, while others use ASIO2, and as long as you are not bound to any of the different options that ASIO2 offers you can choose for ASIO or ASIO2, they will do the same thing. Direct Monitoring we on SFP don't use normally, mostly cos we route it to the DSP mixer to monitor which is realtime. We only route to native only to record or analyse.

Hope this clarifies the ASIO differences...

[blazesboylan]

I of course agree with everything at0m|c says, but want to add:

ASIO 2 has 2 modules which you can use for 24 bit recording:

The "ASIO 2 24bit" source and destination modules give you up to 32 channels of 24 bit data.

The "ASIO 2 64 - 32bit" source and destination modules give you up to 64 channels of 24 bit data.

I use the latter to mix at 24 bit, because I often use 34 channels of ASIO source (thanks to Nuendo limitations).

Hope this helps,

Johann

[liberty]

hi, please tell me how can i synchronize ASIO2 with word clock? where is the source of Word Clock? (what i need to route to ASIO Dest for Word Clock)?
and, please describe me how can i use the Direct Monitor system?

Thanks

[symbiote]

For the Wordclock part, you need to load an ASIO2 Dest module. This module has an input labeled "Clk", which is the Worldclock input (goes to the sequencer.) To get Wordclock into SFP you need a syncplate with 2 BNC connectors (Wordclock in and out) and 9pin ADAT sync port. The Syncplate device is named (incidently) Syncplate Source (and Dest) and has a Clk output, which you connect into the ASIO2's Clk input.

As for direct connect, you need to use ASIO2, so replace any ASIO Source by ASIO2 Source (you need to do this anyway to use ASIO2 Dest with the Clk input.) I'm not sure what it entails on the sequencer, can't help there, sorry.

[dubcotics]

Hi,
all this technical exhibit is ok, but none has answered "Atomic Marshmallow" question concerning logic and scope working at 24 bit, LOL cheers...

[garyb]

you need 24bit asio modules in your project. use asio2. it really doesn't matter THAT much, but use asio2.

when you use asio2, you don't need a 24bit dest. the source module you choose will determine bitdepth.

place the modules in your routing window, choose the number of ins and outs(right click on the module, choose sufaces/asio settings and adjust) and then open logic. don't forget to connect the modules to your mixer, adat i/o, each other or? depending on what you want to hear and send where.

have fun!