Audio

Hi,

In one of our installations we have several QNX4 machines in a single rack,
because of security the rack itself is located in a locked control room with
restricted access. Using some Keyboard-Vdeo-Muse extenders we have some of
the consoles out of the said room.

The problem we have is that the system does send audible alarms sometimes,
using the local speaker of the machine. The operator can’t hear this because
of the locked door and distance. The KVM extender has multimedia support
(ie: it can extend an audio signal). Is there a simple way we can use a
modern audio board (Creative Labs) to mimic the sounds directed to the
PC-speaker so we can put speakers outside the control room? We have no
direct access to the application code, so we can’t change it so it uses an
audio board instead of the PC-speaker.

Best regards,

Gabriel C.

The best way would probably be to extend the speaker outside, instead of
banking on software to redirect “sound events” destined for the speaker to a
sound card. Or you could get creative with a $10 microphone and some
extensions :slight_smile:.

\

Cheers,
Adam

QNX Software Systems Ltd.
[ amallory@qnx.com ]

With a PC, I always felt limited by the software available.
On Unix, I am limited only by my knowledge.
–Peter J. Schoenster <pschon@baste.magibox.net>

“Gabriel Coindreau” <gcoindreau@hotmail.com> wrote in message
news:ajmk02$n5$1@inn.qnx.com

Hi,

In one of our installations we have several QNX4 machines in a single
rack,
because of security the rack itself is located in a locked control room
with
restricted access. Using some Keyboard-Vdeo-Muse extenders we have some of
the consoles out of the said room.

The problem we have is that the system does send audible alarms sometimes,
using the local speaker of the machine. The operator can’t hear this
because
of the locked door and distance. The KVM extender has multimedia support
(ie: it can extend an audio signal). Is there a simple way we can use a
modern audio board (Creative Labs) to mimic the sounds directed to the
PC-speaker so we can put speakers outside the control room? We have no
direct access to the application code, so we can’t change it so it uses an
audio board instead of the PC-speaker.

Best regards,

Gabriel C.

We made the thing work using an old SoundBlaster 16, this is an ISA
card, would it be possible to do this using a newer PCI card? Not
because we need PCI but because it is rather difficult to get ISA
cards nowadays.

Regards,

Gabriel

“Adam Mallory” <amalloryNOSPAM@NOSPAMqnx.com> wrote in message
news:ajrapq$ldt$1@nntp.qnx.com

The best way would probably be to extend the speaker outside, instead of
banking on software to redirect “sound events” destined for the speaker to
a
sound card. Or you could get creative with a $10 microphone and some
extensions > :slight_smile:> .

\

Cheers,
Adam

QNX Software Systems Ltd.
[ > amallory@qnx.com > ]

With a PC, I always felt limited by the software available.
On Unix, I am limited only by my knowledge.
–Peter J. Schoenster <> pschon@baste.magibox.net

“Gabriel Coindreau” <> gcoindreau@hotmail.com> > wrote in message
news:ajmk02$n5$> 1@inn.qnx.com> …

Hi,

In one of our installations we have several QNX4 machines in a single
rack,
because of security the rack itself is located in a locked control room
with
restricted access. Using some Keyboard-Vdeo-Muse extenders we have some
of
the consoles out of the said room.

The problem we have is that the system does send audible alarms
sometimes,
using the local speaker of the machine. The operator can’t hear this
because
of the locked door and distance. The KVM extender has multimedia support
(ie: it can extend an audio signal). Is there a simple way we can use a
modern audio board (Creative Labs) to mimic the sounds directed to the
PC-speaker so we can put speakers outside the control room? We have no
direct access to the application code, so we can’t change it so it uses
an
audio board instead of the PC-speaker.

Best regards,

Gabriel C.
\

Hi Gabriel,

Unfortunatly PCI Audio is not supported under QNX4…however there is ported
ALSA source availble on the Contributed Software page for QNX4 PCI Audio
drivers.

http://quics.qnx.com/cgi-bin/dir_find.cgi/usr/free

Regards,

Joe

“Gabriel Coindreau” <gcoindreau@hotmail.com> wrote in message
news:ak99p3$d9f$1@inn.qnx.com

We made the thing work using an old SoundBlaster 16, this is an ISA
card, would it be possible to do this using a newer PCI card? Not
because we need PCI but because it is rather difficult to get ISA
cards nowadays.

Regards,

Gabriel

“Adam Mallory” <> amalloryNOSPAM@NOSPAMqnx.com> > wrote in message
news:ajrapq$ldt$> 1@nntp.qnx.com> …

The best way would probably be to extend the speaker outside, instead of
banking on software to redirect “sound events” destined for the speaker
to
a
sound card. Or you could get creative with a $10 microphone and some
extensions > :slight_smile:> .

\

Cheers,
Adam

QNX Software Systems Ltd.
[ > amallory@qnx.com > ]

With a PC, I always felt limited by the software available.
On Unix, I am limited only by my knowledge.
–Peter J. Schoenster <> pschon@baste.magibox.net

“Gabriel Coindreau” <> gcoindreau@hotmail.com> > wrote in message
news:ajmk02$n5$> 1@inn.qnx.com> …

Hi,

In one of our installations we have several QNX4 machines in a single
rack,
because of security the rack itself is located in a locked control
room
with
restricted access. Using some Keyboard-Vdeo-Muse extenders we have
some
of
the consoles out of the said room.

The problem we have is that the system does send audible alarms
sometimes,
using the local speaker of the machine. The operator can’t hear this
because
of the locked door and distance. The KVM extender has multimedia
support
(ie: it can extend an audio signal). Is there a simple way we can use
a
modern audio board (Creative Labs) to mimic the sounds directed to the
PC-speaker so we can put speakers outside the control room? We have no
direct access to the application code, so we can’t change it so it
uses
an
audio board instead of the PC-speaker.

Best regards,

Gabriel C.


\