[Portaudio] direct sound problem

[Tim Blechmann]

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using the DirectSound layer of portaudio i experience the following
problem:

the PaDeciveInfo of the tells me that the maxInputChannels are 4 ...
when trying to open this device as input device, i get the error
message: "Unanticipated Host Error."

opening the device with 2 channels works fine ...

- is this a known problem? if so, is there any known workaround?
- is this a portaudio problem or a problem of my implementation?
- if this is a portaudio problem, are there any ambitions to fix this?

thanks in advance ... tim

--
***@gmx.de ICQ: 96771783
http://www.mokabar.tk

Linux is like a wigwam: no windows, no gates, apache inside, stable.

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[Ross Bencina]

Hi Tim

Do you think you can fix your mail user agent to stop sending your messages
as attachments?
using the DirectSound layer of portaudio
<<<<

v18 or v19? what is your soundcard?
i experience the following
problem:

the PaDeciveInfo of the tells me that the maxInputChannels are 4 ...
when trying to open this device as input device, i get the error
message: "Unanticipated Host Error."
<<<<<

That means the DirectSound API returned an error code which PortAudio didn't
expect. The best thing to do would be to trace through the code and work out
where it's happening.
- is this a known problem? if so, is there any known workaround?
<<<

i havn't heard of this problem.
- is this a portaudio problem or a problem of my implementation?
<<<

hard to say. possibly a buggy driver which says it supports 4 channels when
it doesn't. perhaps a bug in portaudio...
- if this is a portaudio problem, are there any ambitions to fix this?
<<<<

of course we'd love to fix it if we can.

Ross.

----- Original Message -----
From: "Tim Blechmann" <***@gmx.net>
To: "Portaudio List" <***@music.columbia.edu>
Sent: Friday, May 19, 2006 11:52 PM
Subject: [Portaudio] direct sound problem

[Tim Blechmann]

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hi ross,

Do you think you can fix your mail user agent to stop sending your messag=

es

as attachments?

i'll try ...

using the DirectSound layer of portaudio
<<<<
=20
v18 or v19? what is your soundcard?

v19, maudio quattro, hammerfall hdsp

i experience the following
=20
the PaDeciveInfo of the tells me that the maxInputChannels are 4 ...
when trying to open this device as input device, i get the error
message: "Unanticipated Host Error."
<<<<<
=20
That means the DirectSound API returned an error code which PortAudio did=

n't

expect. The best thing to do would be to trace through the code and work =

out

where it's happening.

it's happening in DSW_InitInputBuffer ...
IDirectSoundCapture_CreateCaptureBuffer returns E_INVALIDARG ...

- is this a portaudio problem or a problem of my implementation?
<<<
=20
hard to say. possibly a buggy driver which says it supports 4 channels wh=

en

it doesn't. perhaps a bug in portaudio...

possibly a bug when using multichannel cards with directsound?

thanks ... tim

--
***@gmx.de ICQ: 96771783
http://www.mokabar.tk

I had nothing to offer anybody except my own confusion
Jack Kerouac

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[Tim Blechmann]

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hi ross,

Post by Ross Bencina
=20

Post by Tim Blechmann
i experience the following
=20
the PaDeciveInfo of the tells me that the maxInputChannels are 4 ...
when trying to open this device as input device, i get the error
message: "Unanticipated Host Error."
<<<<<
=20
That means the DirectSound API returned an error code which

PortAudio didn't

Post by Tim Blechmann
expect. The best thing to do would be to trace through the code and

work out

Post by Tim Blechmann
where it's happening.

=20
it's happening in DSW_InitInputBuffer ...
IDirectSoundCapture_CreateCaptureBuffer returns E_INVALIDARG ...
=20

Post by Tim Blechmann
- is this a portaudio problem or a problem of my implementation?
<<<
=20
hard to say. possibly a buggy driver which says it supports 4

channels when

Post by Tim Blechmann
it doesn't. perhaps a bug in portaudio...

=20
possibly a bug when using multichannel cards with directsound?=20

i hope, this mail didn't get lost somewhere ... (there is no portaudio
bug tracker, is there?)

tim

--
***@klingt.org ICQ: 96771783
http://www.mokabar.tk

Avoid the world, it's just a lot of dust and drag and means nothing in
the end.
Jack Kerouac

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