Re: plughw versus hw

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On 06/23/2011 12:25 PM, alsa-user-request@xxxxxxxxxxxxxxxxxxxxx wrote:
>
> Date: Tue, 21 Jun 2011 19:24:20 +0400
> From: Vladimir Mosgalin<mosgalin@xxxxxxxxxxxxxxx>
> Subject: Re:  plughw versus hw
> To: alsa-user@xxxxxxxxxxxxxxxxxxxxx
> Message-ID:<20110621152420.GA6745@xxxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=us-ascii
>
> Hi Pierre Habraken!
>
>   On 2011.06.21 at 16:07:51 +0200, Pierre Habraken wrote next:
>
>
>> The contents of /proc/asound/card0/pcm1p/sub0/hw_params looks very
>> similar to the one displayed by aplay -v. I assume that aplay gets its
>> data from /proc...
>
> Yes, there is no need to look there if you are using aplay -v; it's
> handy when you are using something else to play and want to check card
> state.

Ok.


>> I don't know what exactly do pulseaudio and I don't like using things
>> the operation of which I do not understand. Also, I read a lot of
>> negative things about pulseaudio. So I've deactivated it.
>>
>> Thanks again for your help.
>
> Well, it's better to try for yourself instead of blindly turning it off
> :)
> Some people do have reasons to turn it off, for example because of buggy
> sound driver which causes troubles with pulse (which tries to use some
> advanced features), or because it interferes with some audio processing
> applications. But mostly it's just something that takes the blame,
> because it's "default" component of modern linux desktops and people
> often blame it even if the real cause of trouble is elsewhere.
>
> The main reason to use pulseaudio is comfort for desktop usage; mixing
> multiple software streams from various application with per-application
> volume controls that restores state over reboot and guaranteed audio
> quality regardless of streams that are played back (like, you can lock
> it to use your audio card in 24/96 mode only), and ability to move
> streams between outputs and cards (like analog/digital output, usb
> headset, bluetooth audio, sending audio over network etc) on the fly.
> You can check list of features in wikipedia
> http://en.wikipedia.org/wiki/PulseAudio#Features to see if there is
> something you like, or on official wiki page
> http://www.pulseaudio.org/wiki/AboutPulseAudio
>
> There is no reason to use pulse if you are satisfied with current setup,
> however lot of people like its features.

I'll try again playing with pulseaudio when I'll have more spare time.
For now I just need to send flac files to my DAC, so I am happy with Alsa.

Pierre


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