, couldn't this be handled with floats directly?
Regards
Arve Knudsen
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On Fri, 22 Aug 2003 15:11:08 +0200 (CEST), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Thu, 21 Aug 2003, Arve Knudsen wrote:
Hi
I'm not sure if I quite understand the alsa-lib docs regarding the
snd_pcm_hw_params API; in addition to an approximate integer value, one
might specify a direction
Hi
Is it safe to call snd_pcm_close for a pcm which failed to open (assuming
the pcm handle is !NULL)? Not that important, but it might simplify my
code somewhat.
Regards
Arve Knudsen
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Welcome
things.
Thanks
Arve Knudsen
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On Thu, 11 Sep 2003 14:17:59 +0200 (METDST), Clemens Ladisch
[EMAIL PROTECTED] wrote:
Arve Knudsen wrote:
What's the purpose of set_start_threshold?
The stream will automatically start when the buffer has been filled up
to the amount specified by start_threshold.
Ok, obviously there's something
On Fri, 12 Sep 2003 16:51:26 +0200 (METDST), Clemens Ladisch
[EMAIL PROTECTED] wrote:
Arve Knudsen wrote:
I did a little test where I set start threshold to buffer size,
acquire memory using snd_pcm_mmap_begin (number of returned frames
equals buffer size), fill the buffer and do
frames
available), but it makes no difference. This happens with both my cards,
nForce2 onboard and RME DIGI9636. If someone could point out the cause of
this, I'd truly appreciate it. If it matters I am running a development
kernel, 2.6.0 test9-mm1.
Thanks
Arve Knudsen
On Fri, 31 Oct 2003 18:27:16 +0100, Arve Knudsen [EMAIL PROTECTED]
wrote:
Hi
Whenever I turn on xrun detection, setting stop_threshold to buffer size
instead of -1, snd_pcm_start refuses to work. The exit message to do
with broken pipe. I figured it might be caused by an empty buffer, so I
On Sat, 01 Nov 2003 01:10:27 +0100, Arve Knudsen [EMAIL PROTECTED]
wrote:
On Fri, 31 Oct 2003 18:27:16 +0100, Arve Knudsen [EMAIL PROTECTED]
wrote:
Hi
Whenever I turn on xrun detection, setting stop_threshold to buffer
size instead of -1, snd_pcm_start refuses to work. The exit message
of the
Hammerfall driver?
Thanks
Arve Knudsen
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the number of ADAT channels is halved. Is this a known
defect of the
Hammerfall driver?
Thanks
Arve Knudsen
From the Hammerfall Light Alsa sound card page:
Known bugs
- 96kHz and 88.2kHz not accessible via PCM interface
Ok, thanks. I suppose I should've investigated a little better. Too bad, I
would
working as well as under Windows.
Regards
Arve Knudsen
Me too. I own the same card in one of my systems. This is really the
downside to Linux audio. Without dedicated developers that own the cards
and
continue working on improvements support stalls out. The best I've been
able
to determine
or
resource busy' message. This is with the number of channels set to 10,
since the number of ADAT channels is halved. Is this a known
defect of the
Hammerfall driver?
Thanks
Arve Knudsen
From the Hammerfall Light Alsa sound card page:
Known bugs
- 96kHz and 88.2kHz not accessible via PCM interface
Ok
current approach, but I'd like to query the devices without first
acquiring exclusive access. If there is currently no way around acquiring
a device for querying, maybe this requirement could be loosened in a
future version of ALSA?
Regards
Arve Knudsen
On Sun, 7 Dec 2003 19:40:23 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 7 Dec 2003, Arve Knudsen wrote:
I'd like to be able to query the capabilities (number of channels,
buffer
size etc.) of ALSA devices in the system, even if they should be in use
by
some other process
somewhat painful in Windows. Logic
Audio never quite coped with it, from what I remember. But there
seems to be a separation between obtaining information about a card,
and actually acquiring it.
Perhaps this could be refined in a future design of ALSA?
Regards
Arve Knudsen
On Sun, 7 Dec 2003 20:38:48 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 7 Dec 2003, Arve Knudsen wrote:
On Sun, 07 Dec 2003 14:19:28 -0500, Paul Davis
[EMAIL PROTECTED] wrote:
I'd like to be able to query the capabilities (number of
channels,=20
buffer
size etc.) of ALSA
On Sun, 7 Dec 2003 21:00:13 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 7 Dec 2003, Arve Knudsen wrote:
We all think in the same way, but there's no simple solution for this
problem. I prefer to have such configuration information in an
user-space
database accessed via
On Sun, 7 Dec 2003 21:44:16 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 7 Dec 2003, Arve Knudsen wrote:
On Sun, 7 Dec 2003 21:00:13 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 7 Dec 2003, Arve Knudsen wrote:
We all think in the same way, but there's
On Mon, 8 Dec 2003 11:49:45 +0100, Frank Barknecht [EMAIL PROTECTED]
wrote:
Hallo,
Arve Knudsen hat gesagt: // Arve Knudsen wrote:
I'm one of the developers responsible for the ALSA implementation of a
cross
platform audio wrapper called PortAudio (www.portaudio.com), which
gathers
info about
On Mon, 8 Dec 2003 12:39:25 +0100, Frank Barknecht [EMAIL PROTECTED]
wrote:
Hallo,
Arve Knudsen hat gesagt: // Arve Knudsen wrote:
On Mon, 8 Dec 2003 11:49:45 +0100, Frank Barknecht [EMAIL PROTECTED]
wrote:
Which reminds me to ask: how does Portaudio currently cope with
user-defined
flexibility with ALSA?
Regards
Arve Knudsen
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think alsa_driver.c would be the place to look.
Hope this helps
Arve Knudsen
On Wed, 10 Dec 2003 00:38:50 -0800, Ryan Cassidy [EMAIL PROTECTED]
wrote:
Hello all,
I am trying to understand the specifics of the mechanism that JACK uses
to perform audio duplexing (simultaneous playback and capture
if it is to be modified.
Hope some of this makes sense
Arve Knudsen
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On Mon, 15 Dec 2003 09:59:16 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Sun, 14 Dec 2003, Arve Knudsen wrote:
On Mon, 15 Dec 2003 01:17:26 +0900, Patrick Shirkey
[EMAIL PROTECTED] wrote:
If we have a DB of info how would we define the abilities of each
device?
I assume
/jack setup.
Will not rule it out.
Appreciate the feedback
Arve Knudsen
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On Mon, 05 Jan 2004 09:26:21 +, Nick Ing-Simmons
[EMAIL PROTECTED] wrote:
Arve Knudsen [EMAIL PROTECTED] writes:
patest_write_sine produces a noise but it isn't a sine wave (by ear
there are some sharp edges in the waveform).
That is the potential killer ... remember one advantage
), followed by
snd_pcm_hw_params_any and then snd_pcm_hw_params_get_channels_max. Has
anyone experienced similar behaviour?
Thanks in advance
Arve Knudsen
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;
outputParameters.hostApiSpecificStreamInfo = alsaStreamInfo;
It's device string will then be used when opening the output device.
Hope this helps
Arve Knudsen
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;
outputParameters.hostApiSpecificStreamInfo = alsaStreamInfo;
It's device string will then be used when opening the output device.
Hope this helps
Arve Knudsen
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On Mon, 05 Jan 2004 15:55:46 +, [EMAIL PROTECTED] wrote:
Arve Knudsen [EMAIL PROTECTED] writes:
My ALSA card is quite capable of doing 44100
Can you verify that the ALSA API is in use, after configuring out OSS
and
JACK? I cannot see why this test should fail, granted your card
supports
It could have to do with how the particular output plugin is written, or
the (in my opinion) somewhat retarded plugin model of xmms with sleeps
between writes to output.
Regards
Arve Knudsen
On Thu, 08 Jan 2004 15:47:13 +0100, Måns Rullgård [EMAIL PROTECTED] wrote:
Kristof vansant [EMAIL
?
Thanks
Arve Knudsen
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On Wed, 14 Jan 2004 14:43:03 +0100, Takashi Iwai [EMAIL PROTECTED] wrote:
At Wed, 14 Jan 2004 13:27:25 +0100,
Arve Knudsen wrote:
I'm sorry i wasn't being more specific, but from browsing the archive
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg10257.html)
no, it was a bug.
I got
= 8003
0:7a = 57c3
0:7c = 414c
0:7e = 4720
On Wed, 14 Jan 2004 15:02:44 +0100, Takashi Iwai [EMAIL PROTECTED] wrote:
At Wed, 14 Jan 2004 14:57:03 +0100,
Arve Knudsen wrote:
On Wed, 14 Jan 2004 14:43:03 +0100, Takashi Iwai [EMAIL PROTECTED] wrote:
At Wed, 14 Jan 2004 13:27:25 +0100,
Arve Knudsen wrote
.
Thanks
Arve Knudsen
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on .. :)
Regards
Arve Knudsen
On Fri, 16 Jan 2004 20:02:00 +0100 (CET), Rene Rebe [EMAIL PROTECTED]
wrote:
Hi all,
we experience a fairly strange problem with the versioned symbols in
the libasound.so. We have a C++ wrapper library which is normally
linked as shared obkect, too. But for some strange
a similar
problem and who does not appear to be using libtool (correct me here if
I'm mistaken).
Regards
Arve Knudsen
On Fri, 16 Jan 2004 19:57:23 +0100, Takashi Iwai [EMAIL PROTECTED] wrote:
At Thu, 15 Jan 2004 15:23:06 +0100,
Arve Knudsen wrote:
Hi
Like I explained in a post some time back
Ah, thanks. That did the trick indeed.
Arve Knudsen
On Sat, 17 Jan 2004 12:18:07 +0100 (CET), Jaroslav Kysela [EMAIL PROTECTED]
wrote:
On Fri, 16 Jan 2004, Rene Rebe wrote:
Let's link a normal object and a shared obeject of the ALSAHelper:
[EMAIL PROTECTED]:~/develop/trunk/lowlevel/src$ g
this helps
Arve Knudsen
On Wed, 04 Feb 2004 18:29:46 -0600, Nathan Morell [EMAIL PROTECTED]
wrote:
Hi guys, this is my first note to the list so I'm going to try and get
some background information to start on this task.
After talking with Bill, the author of gkrellm, I need to find out if
ALSA
in the documentation for snd_pcm_hw_params_set_buffer_size,
which mentions dir, although its not part of the function signature.
Thanks
Arve Knudsen
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can be returned?
Regards
Arve Knudsen
On Thu, 04 Mar 2004 14:30:08 +0100, Arve Knudsen [EMAIL PROTECTED]
wrote:
Hi
A PortAudio user has been experiencing a problem with his SB128 (Ensoniq
AudioPCI driver), which we tracked down to a call to
snd_pcm_hw_params_get_buffer_time returning -EINVAL
James, I don't know if this is of any help, but you could always have a
peek at the PortAudio (www.portaudio.com) code (pa_linux_alsa.c). We don't
use snd_pcm_async_handler though, but implement async and blocking IO
ourselves.
Hope this helps
Arve Knudsen
On Thu, 06 May 2004 18:15:56
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