[chuck-users] mac intel audio i/o problem

[Manj Benning]

hi

i am running chuck 1.2.0.7 for the first time on my mac intel.And i  
keep getting the following problem when i try running the code below
------------------------
error msg:

[chuck]: (via rtaudio): unable to open specified device(s) with given  
stream parameters:
... RtApiCore: unable to find OS-X audio stream on device (Apple:  
Built-in Microphone) for requested channels (2).

[chuck]: cannot initialize audio device (try using --silent/-s)
---------------------
code:
---------------------
adc => dac;

while( true )
{
     100::ms => now;
}
----------------------

when i do chuck --probe  (output shown below)
all devices, regardless if they are input (adc) or output (dac) are  
shown as dacs. With inputs channels set to 2 when the imic and line  
in are single channel devices. Whats up with this?
And the built in mic on my laptop is working just fine when i check  
through the system prefs.


thanks
Manj
-------------------------------
Macintosh-4:~/Documents/Development/chuck/code manj$ chuck --probe
[chuck]: found 4 device(s) ...
[chuck]: ------( chuck -- dac1 )---------------
[chuck]: device name = "Apple: Built-in Microphone"
[chuck]: probe [success] ...
[chuck]: # output channels = 0
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 0
[chuck]: default device = NO
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]:   24-bit int
[chuck]:   32-bit int
[chuck]:   32-bit float
[chuck]:   64-bit float
[chuck]: supported sample rates:
[chuck]:   44100 Hz
[chuck]:   48000 Hz
[chuck]:   88200 Hz
[chuck]:   96000 Hz
[chuck]:
[chuck]: ------( chuck -- dac2 )---------------
[chuck]: device name = "Apple: Built-in Input"
[chuck]: probe [success] ...
[chuck]: # output channels = 0
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 0
[chuck]: default device = NO
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]:   24-bit int
[chuck]:   32-bit int
[chuck]:   32-bit float
[chuck]:   64-bit float
[chuck]: supported sample rates:
[chuck]:   44100 Hz
[chuck]:   48000 Hz
[chuck]:   88200 Hz
[chuck]:   96000 Hz
[chuck]:
[chuck]: ------( chuck -- dac3 )---------------
[chuck]: device name = "Apple: Built-in Output"
[chuck]: probe [success] ...
[chuck]: # output channels = 2
[chuck]: # input channels  = 0
[chuck]: # duplex Channels = 0
[chuck]: default device = YES
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]:   24-bit int
[chuck]:   32-bit int
[chuck]:   32-bit float
[chuck]:   64-bit float
[chuck]: supported sample rates:
[chuck]:   44100 Hz
[chuck]:   48000 Hz
[chuck]:   88200 Hz
[chuck]:   96000 Hz
[chuck]:
[chuck]: ------( chuck -- dac4 )---------------
[chuck]: device name = "Apple Computer, Inc.: Aggregate Device"
[chuck]: probe [success] ...
[chuck]: # output channels = 2
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 2
[chuck]: default device = YES
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]:   24-bit int
[chuck]:   32-bit int
[chuck]:   32-bit float
[chuck]:   64-bit float
[chuck]: supported sample rates:
[chuck]:   44100 Hz
[chuck]:   48000 Hz
[chuck]:   88200 Hz
[chuck]:   96000 Hz
[chuck]:
[chuck]: ------( chuck -- 0 MIDI inputs )------
[chuck]:
[chuck]: ------( chuck -- 0 MIDI outputs )-----
[chuck]: