At Wed, 3 Mar 2004 21:53:11 + (GMT),
Chris Rankin wrote:
>
> [Linux 2.6.3-SMP, single 933 MHz PIII, 1 GB RAM,
> devfs, gcc-3.2.3]
>
> Hi,
>
> I have just installed the latest ALSA from CVS and
> discovered that it has broken PCM playback. This is
> what aplay gives me now:
>
> $ aplay /usr/
At Thu, 4 Mar 2004 09:11:06 +0800,
Tim Hollingsworth wrote:
>
> Hi
>
> I'm a bit of a newbie here. I'm trying to write a PCM application
> using alsa 1.x. Firstly, is there an up to date howto or tutorial on
> this? I am currently using the ALSA 0.9.0 HOWTO from the ALSA dev
> page:
>
> ht
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. A dump of the current
hw configuration space looks like this:
ACCESS: MMAP_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT
Okay, whoever says ALSA is greater than OSS, I'm trying to act on your
assertions, so here are a few questions.
I have the primary PCM configured with silence_threshold set to zero and
silence_size set to MAXINT. This condition is documented as "The whole
ring buffer is filled with silence at star
On Thu, 4 Mar 2004, Ove Kaaven wrote:
> Okay, whoever says ALSA is greater than OSS, I'm trying to act on your
> assertions, so here are a few questions.
>
> I have the primary PCM configured with silence_threshold set to zero and
> silence_size set to MAXINT. This condition is documented as "The
tor, 04.03.2004 kl. 17.33 skrev Jaroslav Kysela:
> The silence is filled at snd_pcm_start(). This mode is special one for
> our direct plugins. I don't think that other code need to use this mode.
Well, perhaps you don't think so, but the code we're trying to use here
does work much like any "dire
At Thu, 04 Mar 2004 17:02:09 +0100,
Ove Kaaven wrote:
>
> And for sound cards capable of hardware mixing, is there a way to have
> two PCMs that share a buffer, but can be still be started and stopped
> independently?
such a hardware also doesn't share the "buffer".
it supports the h/w mixing but
On Thu, 4 Mar 2004, Ove Kaaven wrote:
> tor, 04.03.2004 kl. 17.33 skrev Jaroslav Kysela:
> > The silence is filled at snd_pcm_start(). This mode is special one for
> > our direct plugins. I don't think that other code need to use this mode.
>
> Well, perhaps you don't think so, but the code we're
At Thu, 4 Mar 2004 19:43:58 +0100 (CET),
Jaroslav wrote:
>
> > > It is wavetable synthesizer API not PCM API. This part of ALSA is still
> > > in the development phase.
> >
> > But when that gets fully developed, would I have to use the rawmidi API
> > to do this then?
>
> I think that sequencer
tor, 04.03.2004 kl. 19.43 skrev Jaroslav Kysela:
> Not really. I don't know, what you're trying to do. The silence extension
> can be used to silence played area automatically from the interrupt
> contents. If you set "silence_threshold" and "silence_size" to
> buffer_size, then the whole _unused
tor, 04.03.2004 kl. 19.47 skrev Takashi Iwai:
> or, with PCM API, you can open several PCMs in a single application.
> if the number of voices are limited, it won't be too heavy.
Hmm. I suspect that doing that would not be that much better than
software mixing unless I can use arbitrary buffer siz
I've been told that meta events can't be handled by the sequencer, and thus midi
doesn't have any mechanisms for creating them, apart from setting the tempo(I can
understand this, since the sequencer doesn't care about lyrics or copyright).
shouldn't the sequencer be able to handle a "MIDI chan
[EMAIL PROTECTED]
>I've been told that meta events can't be handled by the sequencer,
>and thus midi doesn't have any mechanisms for creating them, apart
>from setting the tempo(I can understand this, since the sequencer
>doesn't care about lyrics or copyright). shouldn't the sequencer be
>able to
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