Re: SOLVED: Re: Dell Studio 15 - aka Inspiron 1535 sound problems: HDA intel and codec IDT (STAC) 92HD73C1X5

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Andrea Venturi wrote:
Andrea Venturi wrote:
hi, i own a brand new Dell laptop Studio 15

the audio speakers stay mute if i play an audio file. :-|


now it works (more or less).

hi. i'm back again with a little issue.

the sound max volume is not as high as the other OS standard.

i had a little thread in the Dell Linux mailing list about this issue:

 http://lists.us.dell.com/pipermail/linux-desktops/2008-August/001808.html


and, to make a long story short, Dell's Mario Limonciello told me that the max master volume has been reduced from 0xff to 0xec, to solve some distortion (resonance) issues at higher levels, with this commit:

http://git.alsa-project.org/?p=alsa-kernel.git;a=commit;h=d654a660355f9dc30d3a6bf1493d32363bde8570

this is not going to change until there's some Band EQualization software support in the alsa driver that can reduce this resonance issues at higher volume levels.

do you know if something like this is in development?

i gave a quick look to the Stac/IDT 92HD73C1XXX codec datasheet http://www.idt.com/?genID=92HD73C1 and i'm going to believe there's no HW support about band filtering.. (the datasheet indeed speaks about a SigmaTel Kernel Processing Interface AKA /SKPI/ ) so it should it be a complete software solution for linux too! right?

bye

andrea venturi

begin:vcard
fn:Andrea Venturi
n:;Andrea Venturi
org:Avalpa Digital Engineering SRL
adr;dom:;;Via dell'Arcoveggio 49/5;Bologna;BO;40129
email;internet:a.venturi@xxxxxxxxxx
title:CEO
tel;work:+39 0514187531
tel;cell:+39 3477142994
url:www.avalpa.com
version:2.1
end:vcard

_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux