Portaudio initialisation - maemo.org

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pat	2009-09-25 , 15:45
Posts: 11 \| Thanked: 27 times \| Joined on Nov 2007 @ Manchester	#1

I'm playing about with portaudio and wondering if anyone can help.

I'm using portaudio packages from maemo extras (diablo n800) and am working with the test file from here:

http://www.portaudio.com/trac/browse...test/pa_devs.c

In scratchbox I get the following output:

Code:

[sbox-DIABLO_ARMEL: ~] > gcc -Wall pa_devs.c -lportaudio -o pa_devs
[sbox-DIABLO_ARMEL: ~] > ./pa_devs 
PortAudio version number = 1899
PortAudio version text = 'PortAudio V19-devel (built Jun 28 2009)'
Number of devices = 1
--------------------------------------- device #0
[ Default Input ]
Name                        = /dev/dsp
Host API                    = OSS
Max inputs = 16, Max outputs = 0
Default low input latency   =    0.012
Default low output latency  =   -0.000
Default high input latency  =    0.046
Default high output latency =   -0.000
Default sample rate         = 44100.00
Supported standard sample rates
 for half-duplex 16 bit 16 channel input = 
	 8000.00,  9600.00, 11025.00, 12000.00,
	16000.00, 22050.00, 24000.00, 32000.00,
	44100.00, 48000.00, 88200.00, 96000.00,
	192000.00
----------------------------------------------
[sbox-DIABLO_ARMEL: ~] >

On the n800 I get the following:

Code:

Nokia-N800-43-7:/opt/stuff# ./pa_devs 
PortAudio version number = 1899
PortAudio version text = 'PortAudio V19-devel (built Jun 28 2009)'
Number of devices = 0
----------------------------------------------
Nokia-N800-43-7:/opt/stuff#

Anyone know how to get portaudio to detect audio devices? Am i missing something obvious?

Cheers

Quote & Reply |

	allnameswereout	2009-09-25 , 16:13
	Posts: 3,397 \| Thanked: 1,212 times \| Joined on Jul 2008 @ Netherlands	#2

In SB it uses OSS. Does this only use OSS? If yes, you need OSS emulation in ALSA, or enable support for something else than OSS.

See: http://maemo.org/maemo_release_docum...1.x/node9.html

To compile PortAudio see http://www.portaudio.com/trac/wiki/T.../Compile/Linux

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