>>> I get a lot of static-like noise when dmix resamples audio with a USB
>>> DAC I'm trying out. When I have mpd resample internally with
>>> libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
>>> or disable dmix? One of the main programs I use with audio is miro
>>> which do
On Tue, 16 Jun 2009, Grant wrote:
I get a lot of static-like noise when dmix resamples audio with a USB
DAC I'm trying out. When I have mpd resample internally with
libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
or disable dmix? One of the main programs I use with audio
> I get a lot of static-like noise when dmix resamples audio with a USB
> DAC I'm trying out. When I have mpd resample internally with
> libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
> or disable dmix? One of the main programs I use with audio is miro
> which doesn't allo
>> >> If it's the latter (as usually is on modern systems), then its just
>> >> the input interface that changes, you're goin' trough ALSA anyway.
>>
>> Also, I should mention something that contradicts this. When I define
>> a "format" for dmix in /etc/asound.conf that my DAC doesn't like, no
>>
On Saturday 16 May 2009, Grant wrote:
> >> If it's the latter (as usually is on modern systems), then its just
> >> the input interface that changes, you're goin' trough ALSA anyway.
>
> Also, I should mention something that contradicts this. When I define
> a "format" for dmix in /etc/asound.co
>>> > So how come that you don't get 'em with mpd?!
>>>
>>> In mpd I specify oss instead of alsa. If I specify alsa and involve
>>> dmix, I get static in mpd too.
>>
>> you say OSS... but was that the "real" oss (does it still exist for
>> modern kernels/hardware?!) or was it just the ALSA oss emu
>> > So how come that you don't get 'em with mpd?!
>>
>> In mpd I specify oss instead of alsa. If I specify alsa and involve
>> dmix, I get static in mpd too.
>
> you say OSS... but was that the "real" oss (does it still exist for
> modern kernels/hardware?!) or was it just the ALSA oss emulation?
On Friday 15 May 2009, Grant wrote:
> > So how come that you don't get 'em with mpd?!
>
> In mpd I specify oss instead of alsa. If I specify alsa and involve
> dmix, I get static in mpd too.
you say OSS... but was that the "real" oss (does it still exist for
modern kernels/hardware?!) or was it
>> I've tried S24_3LE, S24LE, S24_BE, S24_3BE, FLOAT_LE, and FLOAT_BE.
>> None of them produce sound except for S24_3LE. S16_LE works, but
>> stills suffers from the static problem. Is there another format I
>> should try?
>
> try the "U" (unsigned) ones... i.e. U16_LE, U24_3LE, etc.
>
>> > BTW:
>> > (BTW: in Debian /etc/asound.conf does not even exists...
>> > are you sure your distribution is setup to use that file?)
>>
>> I'm using Gentoo and I know /etc/asound.conf works because defining
>> dmix's sample rate there lights up the corresponding LED on the USB
>> DAC. I tried moving the
>> > Nevertheless, I guess these "static" problem is not related
>> > to the resample algorithm you are using - unless the problem
>> > is related to insufficient system resources. What CPU do you
>> > have?
>>
>> I'm using an AMD64 Athlon 3.1ghz CPU.
>
> that one should have more than enough horse
On Thursday 14 May 2009, Grant wrote:
> I've tried S24_3LE, S24LE, S24_BE, S24_3BE, FLOAT_LE, and FLOAT_BE.
> None of them produce sound except for S24_3LE. S16_LE works, but
> stills suffers from the static problem. Is there another format I
> should try?
try the "U" (unsigned) ones... i.e. U1
Le Thu, 14 May 2009 08:12:59 -0700,
Grant a écrit :
> >
> > (BTW: in Debian /etc/asound.conf does not even exists...
> > are you sure your distribution is setup to use that file?)
>
> I'm using Gentoo and I know /etc/asound.conf works because defining
> dmix's sample rate there lights up the cor
>> I added this to /etc/asound.conf:
>>
>> pcm.!default {
>> type plug
>> slave.pcm {
>> type dmix
>> ipc_key 1024
>> slave {
>> pcm "hw:0"
>> format S24_3LE
>> rate 96000
>> }
>> }
>> }
>
> are you sure "S24_3LE" is the proper format for your card?
>
> even if it is a "24-96" card, it may require
On Thursday 14 May 2009, Grant wrote:
> > Nevertheless, I guess these "static" problem is not related
> > to the resample algorithm you are using - unless the problem
> > is related to insufficient system resources. What CPU do you
> > have?
>
> I'm using an AMD64 Athlon 3.1ghz CPU.
that one s
On Thursday 14 May 2009, Grant wrote:
> I added this to /etc/asound.conf:
>
> pcm.!default {
> type plug
> slave.pcm {
> type dmix
> ipc_key 1024
> slave {
> pcm "hw:0"
> format S24_3LE
> rate 96000
> }
> }
> }
are you sure "S24_3LE" is the proper format for your card?
even if it is a "24-96" c
>> defaults.pcm.rate_converter "speexrate_best"
>>
>> in /etc/asound.conf and I restarted alsa, but I still have the static
>> problem.
>
> what do you have in your ~/.asoundrc ?
>
> usually that's the "best" place to put your customizations.
>
> (BTW: in Debian /etc/asound.conf does not even exis
On Thu, 14 May 2009 07:39:14 -0700
Grant wrote:
> >> >> I'm playing a video in miro and I get:
> >> >>
> >> >> # lsof|grep speex
> >> >> miro.real 9019 user mem REG 8,3 108992
> >> >> 28197654 /usr/lib64/libspeex.so.1.4.0
> >> >>
> >> >> Does this mean dmix is using
>> >> I'm playing a video in miro and I get:
>> >>
>> >> # lsof|grep speex
>> >> miro.real 9019 user mem REG 8,3 108992
>> >> 28197654 /usr/lib64/libspeex.so.1.4.0
>> >>
>> >> Does this mean dmix is using speex? If so, what else could be causing
>> >> my static proble
On Wednesday 13 May 2009, Grant wrote:
> defaults.pcm.rate_converter "speexrate_best"
>
> in /etc/asound.conf and I restarted alsa, but I still have the static problem.
what do you have in your ~/.asoundrc ?
usually that's the "best" place to put your customizations.
(BTW: in Debian /etc/asoun
On Wed, 13 May 2009 17:50:04 -0700
Grant wrote:
> >> I'm playing a video in miro and I get:
> >>
> >> # lsof|grep speex
> >> miro.real 9019 user mem REG 8,3 108992
> >> 28197654 /usr/lib64/libspeex.so.1.4.0
> >>
> >> Does this mean dmix is using speex? If so, what e
>> I'm playing a video in miro and I get:
>>
>> # lsof|grep speex
>> miro.real 9019 user mem REG 8,3 108992
>> 28197654 /usr/lib64/libspeex.so.1.4.0
>>
>> Does this mean dmix is using speex? If so, what else could be causing
>> my static problem? I basically hear sta
On Wed, 13 May 2009 14:46:26 -0700
Grant wrote:
> I'm playing a video in miro and I get:
>
> # lsof|grep speex
> miro.real 9019 user mem REG8,3108992
> 28197654 /usr/lib64/libspeex.so.1.4.0
>
> Does this mean dmix is using speex? If so, what else could be causi
>> >> BTW, did you install alsa-plugins-pph or so?
>> >> It's a resampler from speex, and it's usually much faster and good
>> >> enough.
>> >
>> > upsampling to 24/192 (to an "hi-end" external DAC connected
>> > via I2S from a "Juli@") IME "speexrate_best" actually sounds
>> > even better than "sa
On Wed, 13 May 2009 12:40:39 -0700
Grant wrote:
> >> BTW, did you install alsa-plugins-pph or so?
> >> It's a resampler from speex, and it's usually much faster and good
> >> enough.
> >
> > upsampling to 24/192 (to an "hi-end" external DAC connected
> > via I2S from a "Juli@") IME "speexrate_bes
>> BTW, did you install alsa-plugins-pph or so?
>> It's a resampler from speex, and it's usually much faster and good
>> enough.
>
> upsampling to 24/192 (to an "hi-end" external DAC connected
> via I2S from a "Juli@") IME "speexrate_best" actually sounds
> even better than "samplerate_best" (subje
On Wednesday 13 May 2009, Takashi Iwai wrote:
> BTW, did you install alsa-plugins-pph or so?
> It's a resampler from speex, and it's usually much faster and good
> enough.
upsampling to 24/192 (to an "hi-end" external DAC connected
via I2S from a "Juli@") IME "speexrate_best" actually sounds
ev
>> I get a lot of static-like noise when dmix resamples audio with a USB
>> DAC I'm trying out. When I have mpd resample internally with
>> libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
>> or disable dmix? One of the main programs I use with audio is miro
>> which doesn't
At Tue, 12 May 2009 12:35:48 -0700,
Grant wrote:
>
> I get a lot of static-like noise when dmix resamples audio with a USB
> DAC I'm trying out. When I have mpd resample internally with
> libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
> or disable dmix? One of the main pr
I get a lot of static-like noise when dmix resamples audio with a USB
DAC I'm trying out. When I have mpd resample internally with
libsamplerate, it sounds perfect. Can I get dmix to use libsamplerate
or disable dmix? One of the main programs I use with audio is miro
which doesn't allow you to s
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