[lubuntu-users] always have to use pulseaudio volume control?

[Aere Greenway]

On 09/19/2016 06:50 AM, Stefan Kleyer wrote:
> Hi,
> as far as I know, ALSA is working, but ALSA can only accept audio 
> input from one stream. So
> if e.g. you are playing music via media player, Firefox can't play a 
> YouTube video with audio.
> Pulseaudio is kind of a wrapper for ALSA, that allows the OS to play 
> sound from multiple
> sources and to multiple sound devices. So it is:
>
> audio source (e.g. VLC) -> Pulseaudio -> ALSA -> sound device
>
> So you need ALSA in order to have sound. You can alternatively try 
> JACK (http://
> jackaudio.org/) instead of Pulseaudio but it's specifically made for 
> audio professionals such
> as DJs etc. Afaik ALSA is in Linux the "base of sound" if you say so.
> Please correct me, if I'm wrong, but that's what I get.
> Best regards,
> Stefan
> *Gesendet:* Montag, 19. September 2016 um 14:08 Uhr
> *Von:* "Marlon Ng" <guikaye at gmail.com>
> *An:* lubuntu-users at lists.ubuntu.com
> *Betreff:* [lubuntu-users] always have to use pulseaudio volume control?
> Hello guys.  I was just wondering if installing Pulseaudio Volume 
> Control is really necessary to have sound in a Lubuntu system.
> The default is ALSA Mixer, correct?  When I was started using Lubuntu 
> and there was no sound, someone told me to install Pulseaudio, and I 
> have been using Pulseaudio ever since, it is one of the first things I 
> install in order to have sound.
> My question is, is it really necessary? Isn't there a way to make ALSA 
> mixer work? Because if it doesn't work, then why is it always bundled 
> with Lubuntu?
> Thanks!
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>

JACK (Jack Audio Connection Kit) is a good thing to have, being low 
overhead, and it lets you connect arbitrary audio and MIDI devices. It's 
(to me) the "ASIO device driver" of the Linux world.

Unfortunately (as it is with ASIO in Windows), it is hard to make it 
co-exist well with ordinary (ALSA) devices.

PulseAudio Volume Control gives you a better GUI interface (than ALSA 
mixer) for controlling your audio devices.

-- 
Sincerely,
Aere

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