From: "Vedran Miletić" <rivanvx@gmail.com>
To: James Courtier-Dutton <James@superbug.co.uk>,
alsa-devel mailing list <alsa-devel@alsa-project.org>
Subject: Re: Backported sbxfi driver, possible fix
Date: Tue, 28 Oct 2008 11:53:04 +0100 [thread overview]
Message-ID: <fd3eb9bf0810280353ha4e33a7j97da9ff7059680a0@mail.gmail.com> (raw)
In-Reply-To: <49061FA4.5010201@superbug.co.uk>
But that surely isn't bitperfect, right?
2008/10/27 James Courtier-Dutton <James@superbug.co.uk>
> Alex,
>
> I added that comment (takashi cut and pasted my text). No resampling is
> done.
> Say you have a buffer that is running at 48kHz.
> So you have say 480 samples at the 48kHz rate.
> But if you want to transfer 44.1kHz rate samples over it, you only want
> 441 samples to be there, so what to do with the left over 39 samples.
> What the xfi does is next to each sample it adds a "valid" tag.
> So, the xfi adds those 39 samples but marks them as "invalid".
> The xfi then drops the 39 "invalid" samples, leaving only the 441
> "valid" samples just before sending them at 44.1kHz to the DAC.
> Does this explain things a bit better.
> FYI, the xfi actually works internally at 384kHz, so it is actually
> marking a lot of samples as "invalid".
>
> Kind Regards
>
> James
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
--
Vedran Miletić
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next prev parent reply other threads:[~2008-10-28 10:53 UTC|newest]
Thread overview: 156+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-09 18:02 Backported sbxfi driver (UNTESTED!) Takashi Iwai
2008-10-09 18:12 ` Brendan Pike
2008-10-09 18:25 ` Ted T. Logian
2008-10-09 18:25 ` William Pitcock
2008-10-09 18:49 ` Ted T. Logian
2008-10-09 19:50 ` James Courtier-Dutton
2008-10-10 6:02 ` Takashi Iwai
2008-10-09 20:03 ` Ted T. Logian
2008-10-09 20:17 ` Ted T. Logian
2008-10-10 6:01 ` Takashi Iwai
2008-10-10 6:26 ` Ted T. Logian
2008-10-10 6:46 ` Takashi Iwai
[not found] ` <6d00fe310810100939h6cd61e0cg7817c7f54f6261f6@mail.gmail.com>
2008-10-10 16:41 ` Fwd: " The Source
2008-10-11 15:47 ` Takashi Iwai
2008-10-11 16:03 ` Ted T. Logian
2008-10-11 17:32 ` Takashi Iwai
2008-10-12 8:41 ` Vedran Miletić
2008-10-12 8:48 ` James Courtier-Dutton
2008-10-12 9:43 ` The Source
2008-10-12 8:44 ` James Courtier-Dutton
2008-10-13 9:52 ` Takashi Iwai
2008-10-11 16:28 ` The Source
2008-10-11 17:34 ` Takashi Iwai
2008-10-10 18:17 ` William Pitcock
2008-10-11 16:01 ` Takashi Iwai
2008-10-11 17:36 ` William Pitcock
2008-10-11 17:39 ` William Pitcock
2008-10-11 17:41 ` Takashi Iwai
2008-10-11 17:43 ` Takashi Iwai
2008-10-11 18:04 ` William Pitcock
2008-10-12 19:34 ` Takashi Iwai
[not found] ` <e4b753d00810121816i133141d5te6a4d638044f3875@mail.gmail.com>
2008-10-13 2:08 ` Takashi Iwai
2008-10-13 9:51 ` Takashi Iwai
2009-06-10 8:39 ` problems with fedora 11 and pulseaudio and svn x-fi driver Ted T. Logan
2009-06-10 8:52 ` Ted T. Logan
2009-06-10 9:29 ` Takashi Iwai
2009-06-10 16:23 ` Ted T. Logan
2009-06-10 16:48 ` Ted T. Logan
2009-06-11 14:48 ` Ted T. Logan
2009-06-12 16:46 ` "ticks" with latest " Ted T. Logan
2008-10-16 12:03 ` Backported sbxfi driver (UNTESTED!) Jan Wolf
2008-10-16 12:33 ` Takashi Iwai
2008-10-16 12:56 ` Xarteras
2008-10-16 13:36 ` The Source
2008-10-16 13:48 ` Takashi Iwai
2008-10-16 14:15 ` The Source
2008-10-16 14:18 ` Takashi Iwai
2008-10-16 14:41 ` The Source
2008-10-16 14:42 ` Takashi Iwai
2008-10-16 14:51 ` The Source
2008-10-16 15:00 ` The Source
2008-10-16 15:04 ` Takashi Iwai
[not found] ` <48F75892.8000209@gmail.com>
2008-10-16 15:15 ` Takashi Iwai
2008-10-16 17:53 ` Bjoern Olausson
2008-10-16 18:02 ` The Source
2008-10-16 18:18 ` The Source
2008-10-17 6:17 ` Takashi Iwai
2008-10-17 6:26 ` The Source
2008-10-17 6:39 ` Takashi Iwai
2008-10-17 7:16 ` The Source
2008-10-17 8:17 ` The Source
2008-10-17 9:00 ` Xarteras
2008-10-17 9:17 ` The Source
2008-10-17 9:25 ` Takashi Iwai
2008-10-17 9:23 ` Takashi Iwai
2008-10-17 9:50 ` Xarteras
2008-10-17 10:00 ` Tony Vroon
2008-10-17 10:35 ` Xarteras
2008-10-17 15:33 ` Bjoern Olausson
2008-10-17 7:57 ` The Source
2008-10-17 9:35 ` Takashi Iwai
2008-10-17 9:58 ` The Source
2008-10-17 9:59 ` Takashi Iwai
2008-10-17 10:01 ` The Source
2008-10-17 10:04 ` Takashi Iwai
[not found] ` <48F86606.9070108@gmail.com>
2008-10-17 10:27 ` Takashi Iwai
2008-10-17 20:48 ` William Pitcock
2008-10-18 10:06 ` Xarteras
2008-10-18 15:06 ` Takashi Iwai
2008-10-18 17:10 ` William Pitcock
2008-10-18 17:17 ` William Pitcock
2008-10-19 7:59 ` Takashi Iwai
2008-10-19 18:07 ` Bjoern Olausson
2008-10-19 19:47 ` William Pitcock
2008-10-16 21:29 ` Xarteras
2008-10-17 18:16 ` James Courtier-Dutton
2008-10-22 15:24 ` Bjoern Olausson
2008-10-22 15:26 ` Takashi Iwai
2008-10-22 16:07 ` Bjoern Olausson
2008-10-22 16:24 ` Bjoern Olausson
2008-10-22 19:25 ` The Source
2008-10-23 5:40 ` Takashi Iwai
2008-10-23 11:46 ` Bjoern Olausson
2008-10-23 11:53 ` Jason Harvey
2008-10-23 13:56 ` Takashi Iwai
2008-10-23 12:45 ` Jason Harvey
2008-10-23 13:07 ` Bjoern Olausson
2008-10-23 13:21 ` Jason Harvey
2008-10-23 15:54 ` Takashi Iwai
2008-10-23 14:23 ` Jason Harvey
2008-10-23 17:07 ` Takashi Iwai
2008-10-23 17:15 ` Takashi Iwai
2008-10-23 15:37 ` Jason Harvey
2008-10-23 15:40 ` Bjoern Olausson
2008-10-23 17:44 ` Takashi Iwai
2008-10-23 17:49 ` Takashi Iwai
2008-10-23 16:23 ` Jason Harvey
2008-10-23 19:14 ` Takashi Iwai
2008-10-23 17:32 ` Jason Harvey
2008-10-23 21:30 ` Takashi Iwai
2008-10-23 20:17 ` Jason Harvey
2008-10-24 8:40 ` Takashi Iwai
2008-10-24 7:56 ` Jason Harvey
2008-10-24 10:21 ` Takashi Iwai
2008-10-24 8:50 ` Jason Harvey
2008-10-25 13:06 ` Backported sbxfi driver, possible fix Thomas Scheunemann
2008-10-25 16:05 ` Takashi Iwai
2008-10-25 19:42 ` Thomas Scheunemann
2008-10-25 19:59 ` Takashi Iwai
2008-10-25 20:40 ` Jason Harvey
2008-10-25 21:57 ` Bjoern Olausson
2008-10-26 6:32 ` The Source
2008-10-26 8:23 ` Takashi Iwai
2008-10-26 9:11 ` The Source
2008-10-26 9:17 ` The Source
2008-10-26 6:45 ` The Source
2008-10-26 6:56 ` The Source
2008-10-26 7:22 ` The Source
2008-10-26 8:21 ` Takashi Iwai
2008-10-27 5:15 ` Alexander E. Patrakov
2008-10-27 5:32 ` The Source
2008-10-27 6:28 ` Takashi Iwai
2008-10-27 6:34 ` The Source
2008-10-27 6:39 ` Takashi Iwai
2008-10-28 0:10 ` Bjoern Olausson
2008-10-28 7:14 ` Takashi Iwai
2008-10-28 13:48 ` Bjoern Olausson
2008-10-28 14:12 ` Takashi Iwai
2008-10-30 10:46 ` Bjoern Olausson
2008-10-30 11:05 ` Bjoern Olausson
2008-10-30 11:07 ` Takashi Iwai
2008-10-30 12:25 ` Bjoern Olausson
2008-10-28 6:59 ` Takashi Iwai
2008-10-27 6:36 ` Takashi Iwai
2008-10-27 20:08 ` James Courtier-Dutton
2008-10-28 4:44 ` Alexander E. Patrakov
2008-10-28 9:31 ` Takashi Iwai
2008-10-28 10:53 ` Vedran Miletić [this message]
2008-10-29 8:38 ` Pavel Hofman
2008-10-26 8:16 ` Takashi Iwai
2008-10-26 8:45 ` Backported sbxfi driver. Pulse works! Jason Harvey
2008-10-23 17:26 ` Backported sbxfi driver (UNTESTED!) Takashi Iwai
2008-10-23 15:31 ` Jason Harvey
2008-10-23 17:41 ` Takashi Iwai
2008-10-23 14:48 ` Jason Harvey
2008-10-23 13:54 ` Takashi Iwai
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