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From: Paul Davis <pbd@op.net>
To: Dave Andruczyk <djandruczyk@yahoo.com>
Cc: alsa-devel@alsa-project.org, alsa-user@alsa-project.org
Subject: Re: asound.conf pcm.tee, anyone know how to use it
Date: Sun, 12 May 2002 22:33:04 -0400	[thread overview]
Message-ID: <200205130232.EAA31315@alsa.alsa-project.org> (raw)
In-Reply-To: Your message of "Sun, 12 May 2002 17:42:39 PDT." <20020513004239.56478.qmail@web14108.mail.yahoo.com>

>Please someone correct me if I am mistaken.  Can the pcm.tee option in alsa.co
>n
>(/usr/share/alsa/alsa.conf) be setup so that the output of a program that uses
>alsa natively be monitored by connecting to this "tee" ??

well, the "tee" type allows redirection but its only sane to do it to
a file inode that allows (almost) endless non-blocking read/write. there are
almost no such devices in POSIX unless its a regular file. so you
can't really use it for loopback. its intended for instances where you
want the output to go to an audio interface *and* a file.

there is a way to do "loopback" in ALSA these days, but "tee" is not
it. someone will fill in the blanks (or better yet, write/complete a
HOWTO). 

--p

<obJack>
of course, JACK can do loopback, multiplexing, app-2-app and many
other forms of data routing without any effort on the part of your
application ...
</obJack>

:)

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       reply	other threads:[~2002-05-13  2:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20020513004239.56478.qmail@web14108.mail.yahoo.com>
2002-05-13  2:33 ` Paul Davis [this message]
2002-05-13  7:57 ` asound.conf pcm.tee, anyone know how to use it Jaroslav Kysela
2002-05-13  0:42 Dave Andruczyk

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