Re: Intel iMac
Re: Intel iMac
- Subject: Re: Intel iMac
- From: William Stewart <email@hidden>
- Date: Tue, 31 Jan 2006 12:12:54 -0800
There shouldn't be actual sync issues - the devices are run off the
same crystal, just that they can be run at different sample rates -
so they have some independence that has not been the case with
previous hardware.
You should be able to aggregate them without having to resample and
they will remain synchronised.
Bill
On 31/01/2006, at 11:52 AM, Jeff Moore wrote:
Yes. The situation is more or less the same for built-in on this
machine as it is for USB.
On Jan 31, 2006, at 12:29 AM, Stéphane Letz wrote:
--------------------------------------------------------------------
--
Message: 1
Date: Mon, 30 Jan 2006 15:24:09 -0800
From: Jeff Moore <email@hidden>
Subject: Re: Intel iMac
To: CoreAudio API <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
On the Intel iMac, there are two input devices (one analog and one
digital) and one output device. All three devices are clocked
independently and, much like USB devices, are represented as three
separate devices in the HAL. This presents something of a new
situation as there are no bi-directional devices on the system by
default anymore. Code needs to be able to deal with that situation.
That said, I don't know a whole lot about MTCoreAudio, so I can't
say
if it can handle that situation. I do know that it's pretty hard to
get into a situation on these systems where the HAL won't return a
default input device.
Does this mean that we'll need to use an aggregate device to
"combine" input and output to solve the clock sync issues when
doing full-duplex audio?
--
Jeff Moore
Core Audio
Apple
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
--
mailto:email@hidden
tel: +1 408 974 4056
________________________________________________________________________
__
"Much human ingenuity has gone into finding the ultimate Before.
The current state of knowledge can be summarized thus:
In the beginning, there was nothing, which exploded" - Terry Pratchett
________________________________________________________________________
__
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden