Click Feedback?

Sander van Grieken sander at
Tue Jun 10 16:55:02 CEST 2008

> Hi guys,
> we have been shipping pulseaudio (which is quite a CPU hog on embedded
> systems) on our rootfs for quite a while now. The main reason not to use alsa
> directly was because of mixing, since alsa dmix absolutely does not cut it.
> However just recently I ponder whether I should remove pulseaudio for the time
> being. I have been mainly using it to create a click sound (touch feedback),
> since ring tone et. al playback goes over gstreamer anyways.
> So... how important is that click sound to you? Would you miss it? Personally,
> I love it, since the device kind of vibrates (because it's low enough) hence
> I immediately know that the touch has been recognized, even if the UI takes a
> bit. However, I know lot of other people hate it.
> If we were to get rid of it, we could ditch pulseaudio and go directly to
> alsa. This means no longer being able to mix sounds, but rather stick them
> into a queue and play them sequentially.
> Opinions?

I'd miss it probably, I think it's helpful with a touchscreen-only device.

Doesn't dmix work at all or are there other problems?
I had good result on my desktop system with an ALSA  plug->rate->dmix chain.
Directly using the dmix 'device' gave me problems in the past though.


More information about the community mailing list