Subject: Re: [ecasound] Real-time input/output
From: Kai Vehmanen (kai.vehmanen_AT_wakkanet.fi)
Date: Thu Apr 08 2004 - 02:29:35 EEST
On Mon, 5 Apr 2004, Jim Smith wrote:
> I'm a fairly new user of ecasound. I have browsed through the
> archives, and have not seen this addressed. I've installed ecasound
> on my FreeBSD 4.9 machine [no Jack support], and I besides all the
Btw, in case you are not aware, there is work underway to add
FreeBSD support to JACK. See the web archives of jackit-devel mailing
> I cannot for the life of me figure out how to get ecasound to use the
> input of the soundcard as its input, and the output of the sound card
The basic syntax is:
ecasound -i /dev/dsp -o /dev/dsp
... unfortunately the OSS API allows many ways for driver to implement
full-duplex support. So sometimes you need:
ecasound -i /dev/dsp0 -o /dev/dsp1
And then there are some drivers that only support full-duplex if the
char device (say /dev/dsp) is opened in O_RDWR mode. Ecasound does support
still style of full-duplex in OSS, and probably never will as it has been
proven to be the wrong way to implement full-duplex.
PS The FreeBSD JACK guys are using the "newpcm" audio drivers. Are
you using those too?
--- http://www.eca.cx Audio software for Linux!
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