From: Daniel Mack <daniel@caiaq.de>
To: Pedro Ribeiro <pedrib@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
gregkh@suse.de, konrad.wilk@oracle.com, tiwai@suse.de,
USB list <linux-usb@vger.kernel.org>,
clemens@ladisch.de,
Kernel development list <linux-kernel@vger.kernel.org>,
chrisw@sous-sol.org, iommu@lists.linux-foundation.org,
andi@firstfloor.org, Andrew Morton <akpm@linux-foundation.org>,
dwmw2@infradead.org
Subject: Re: [alsa-devel] USB transfer_buffer allocations on 64bit systems
Date: Tue, 11 May 2010 19:38:30 +0200 [thread overview]
Message-ID: <20100511173830.GF30801@buzzloop.caiaq.de> (raw)
In-Reply-To: <AANLkTimdsIJt69TKf2CgXjEXDJXSNib2jt9JSapmuJyW@mail.gmail.com>
On Tue, May 11, 2010 at 06:32:50PM +0100, Pedro Ribeiro wrote:
> On 11 May 2010 18:10, Daniel Mack <daniel@caiaq.de> wrote:
> > No surprise here. The 4 channels are mux'ed in an interleaved fashion,
> > so if the buffers contain rubbish, you will hear artefacts on all
> > channels.
>
> So what would be the testcase you would like me to try?
Would be good to see what happens if you could record audio (with
arecord would be sufficient), just to see whether the same problem
exists in the other direction.
Either record an externally generated sine tone and open the resulting
wave file in an editor. With the amount of artefacts you describe, they
should easily be visible.
Another option is to play back any kind of recorded audio thru an audio
device that does not show the problem (some internal, onboard device?).
Thanks,
Daniel
next prev parent reply other threads:[~2010-05-11 17:38 UTC|newest]
Thread overview: 221+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-07 9:06 USB transfer_buffer allocations on 64bit systems Daniel Mack
2010-04-07 9:06 ` Daniel Mack
[not found] ` <p2g581ef6d61004070220z1153d40ez955b356e01220848@mail.gmail.com>
2010-04-07 9:26 ` USB HID gadget driver (was: Re: USB transfer_buffer allocations on 64bit systems) Daniel Mack
2010-04-07 9:26 ` Daniel Mack
2010-04-07 14:59 ` USB transfer_buffer allocations on 64bit systems Alan Stern
2010-04-07 14:59 ` Alan Stern
2010-04-07 15:11 ` Daniel Mack
2010-04-07 15:11 ` Daniel Mack
2010-04-07 15:31 ` Greg KH
2010-04-07 15:31 ` Greg KH
2010-04-07 15:35 ` Daniel Mack
2010-04-07 15:35 ` Daniel Mack
2010-04-07 15:51 ` Greg KH
2010-04-07 15:51 ` Greg KH
2010-04-07 16:04 ` Alan Stern
2010-04-07 16:04 ` Alan Stern
2010-04-08 6:09 ` Oliver Neukum
2010-04-08 11:07 ` Daniel Mack
2010-04-08 11:07 ` Daniel Mack
2010-04-07 15:55 ` Alan Stern
2010-04-07 15:55 ` Alan Stern
2010-04-07 16:16 ` Daniel Mack
2010-04-07 16:16 ` Daniel Mack
2010-04-07 16:47 ` Alan Stern
2010-04-07 16:47 ` Alan Stern
2010-04-07 17:55 ` Takashi Iwai
2010-04-07 17:55 ` Takashi Iwai
2010-04-07 17:59 ` Daniel Mack
2010-04-07 17:59 ` Daniel Mack
2010-04-07 18:06 ` Takashi Iwai
2010-04-07 18:06 ` Takashi Iwai
2010-04-07 19:13 ` Alan Stern
2010-04-07 19:13 ` Alan Stern
2010-04-07 23:59 ` Robert Hancock
2010-04-07 23:59 ` Robert Hancock
2010-04-08 0:33 ` Greg KH
2010-04-08 0:33 ` Greg KH
2010-04-09 0:01 ` Robert Hancock
2010-04-09 16:50 ` Sarah Sharp
2010-04-09 16:50 ` Sarah Sharp
2010-04-09 23:38 ` Robert Hancock
2010-04-09 23:38 ` Robert Hancock
2010-04-10 8:34 ` [alsa-devel] " Daniel Mack
2010-04-10 8:34 ` Daniel Mack
2010-04-10 17:02 ` [alsa-devel] " Robert Hancock
2010-04-12 18:56 ` Sarah Sharp
2010-04-12 20:39 ` Robert Hancock
2010-04-12 20:39 ` Robert Hancock
2010-04-12 20:58 ` Sarah Sharp
2010-04-12 11:17 ` [PATCH] USB: rename usb_buffer_alloc() and usb_buffer_free() Daniel Mack
2010-04-12 11:17 ` Daniel Mack
2010-04-13 18:16 ` Daniel Mack
2010-04-13 18:16 ` Daniel Mack
2010-04-13 19:27 ` Alan Stern
2010-04-13 19:27 ` Alan Stern
2010-04-13 20:26 ` Greg KH
2010-04-13 21:47 ` Daniel Mack
2010-04-13 21:47 ` Daniel Mack
2010-04-07 17:52 ` USB transfer_buffer allocations on 64bit systems Takashi Iwai
2010-04-07 17:52 ` Takashi Iwai
2010-04-07 15:46 ` Alan Stern
2010-04-07 15:46 ` Alan Stern
2010-04-08 6:12 ` Oliver Neukum
2010-04-08 16:59 ` Alan Stern
2010-04-08 16:59 ` Alan Stern
2010-04-08 21:24 ` Oliver Neukum
2010-04-08 22:20 ` Alan Stern
2010-04-08 22:20 ` Alan Stern
2010-04-09 6:04 ` Oliver Neukum
2010-04-09 14:41 ` Alan Stern
2010-04-09 14:41 ` Alan Stern
2010-04-09 14:50 ` Oliver Neukum
2010-04-09 14:50 ` Oliver Neukum
2010-04-09 15:15 ` Alan Stern
2010-04-09 15:15 ` Alan Stern
2010-04-09 20:51 ` Oliver Neukum
2010-04-09 20:51 ` Oliver Neukum
2010-04-09 21:21 ` Alan Stern
2010-04-09 21:21 ` Alan Stern
2010-04-07 16:54 ` Oliver Neukum
2010-04-07 16:54 ` Oliver Neukum
2010-04-07 17:00 ` Daniel Mack
2010-04-07 17:00 ` Daniel Mack
2010-04-07 23:55 ` Robert Hancock
2010-04-07 23:55 ` Robert Hancock
2010-04-08 2:10 ` Alan Stern
2010-04-08 2:10 ` Alan Stern
2010-04-08 7:30 ` Daniel Mack
2010-04-08 7:30 ` Daniel Mack
2010-04-08 16:57 ` Alan Stern
2010-04-08 16:57 ` Alan Stern
2010-04-08 17:17 ` Pedro Ribeiro
2010-04-08 18:17 ` Alan Stern
2010-04-08 23:13 ` Pedro Ribeiro
2010-04-08 23:13 ` Pedro Ribeiro
2010-04-09 16:01 ` Alan Stern
2010-04-09 16:01 ` Alan Stern
2010-04-09 18:09 ` Daniel Mack
2010-04-09 18:19 ` Pedro Ribeiro
2010-04-09 18:19 ` Pedro Ribeiro
2010-04-09 19:34 ` Alan Stern
2010-04-09 19:34 ` Alan Stern
2010-04-09 20:14 ` Daniel Mack
2010-04-09 20:14 ` Daniel Mack
2010-04-09 20:25 ` [LKML] " Konrad Rzeszutek Wilk
2010-04-09 20:25 ` Konrad Rzeszutek Wilk
2010-04-09 21:23 ` Alan Stern
2010-04-09 21:23 ` Alan Stern
2010-04-09 22:11 ` Robert Hancock
2010-04-12 10:48 ` Daniel Mack
2010-04-12 10:48 ` Daniel Mack
2010-04-12 12:06 ` Pedro Ribeiro
2010-04-10 12:49 ` Daniel Mack
2010-04-10 12:49 ` Daniel Mack
2010-04-10 13:21 ` Pedro Ribeiro
2010-04-10 13:21 ` Pedro Ribeiro
2010-04-12 8:59 ` Andi Kleen
2010-04-12 8:59 ` Andi Kleen
2010-04-12 11:14 ` Daniel Mack
2010-04-12 11:14 ` Daniel Mack
2010-04-12 11:53 ` Andi Kleen
2010-04-12 11:53 ` Andi Kleen
2010-04-12 12:11 ` Pedro Ribeiro
2010-04-12 12:12 ` Andi Kleen
2010-04-12 12:12 ` Andi Kleen
2010-04-12 12:32 ` Daniel Mack
2010-04-12 12:47 ` Andi Kleen
2010-04-12 12:54 ` Daniel Mack
2010-04-12 12:54 ` Daniel Mack
2010-04-12 15:43 ` Andi Kleen
2010-04-12 16:17 ` Alan Stern
2010-04-12 16:17 ` Alan Stern
2010-04-12 16:29 ` Andi Kleen
2010-04-12 16:57 ` Alan Stern
2010-04-12 16:57 ` Alan Stern
2010-04-12 17:15 ` Daniel Mack
2010-04-12 17:15 ` Daniel Mack
2010-04-12 17:22 ` Andi Kleen
2010-04-12 17:22 ` Andi Kleen
2010-04-12 17:56 ` Daniel Mack
2010-04-12 17:56 ` Daniel Mack
2010-04-12 17:52 ` [LKML] " Konrad Rzeszutek Wilk
2010-04-12 17:52 ` Konrad Rzeszutek Wilk
2010-04-13 18:22 ` Daniel Mack
2010-04-13 18:22 ` Daniel Mack
2010-04-13 23:46 ` Pedro Ribeiro
2010-04-13 23:46 ` Pedro Ribeiro
2010-04-14 10:09 ` Daniel Mack
2010-04-14 10:09 ` Daniel Mack
2010-04-14 10:47 ` Pedro Ribeiro
2010-04-14 11:02 ` Pedro Ribeiro
2010-04-14 13:18 ` [LKML] " Konrad Rzeszutek Wilk
2010-04-14 14:08 ` Alan Stern
2010-04-14 14:08 ` Alan Stern
2010-04-14 16:36 ` Daniel Mack
2010-04-14 16:36 ` Daniel Mack
2010-04-14 17:21 ` Pedro Ribeiro
2010-04-14 17:21 ` Pedro Ribeiro
2010-04-14 18:23 ` Alan Stern
2010-04-14 18:27 ` Pedro Ribeiro
2010-04-14 18:53 ` Alan Stern
2010-04-15 7:35 ` Daniel Mack
2010-04-15 7:35 ` Daniel Mack
2010-04-14 18:15 ` Alan Stern
2010-04-14 18:36 ` David Woodhouse
2010-04-14 21:12 ` Pedro Ribeiro
2010-04-14 22:25 ` Chris Wright
2010-04-14 22:56 ` Pedro Ribeiro
2010-04-14 23:37 ` Chris Wright
2010-04-15 1:20 ` Pedro Ribeiro
2010-04-15 15:20 ` Alan Stern
2010-04-20 0:16 ` Pedro Ribeiro
2010-05-07 7:48 ` Daniel Mack
2010-05-07 7:48 ` Daniel Mack
2010-05-07 9:47 ` [alsa-devel] " Clemens Ladisch
2010-05-07 9:47 ` Clemens Ladisch
2010-05-07 10:24 ` [alsa-devel] " Daniel Mack
2010-05-07 10:24 ` Daniel Mack
2010-05-07 14:51 ` [alsa-devel] " Alan Stern
2010-05-07 14:51 ` Alan Stern
2010-05-10 2:50 ` FUJITA Tomonori
2010-05-10 9:21 ` David Woodhouse
2010-05-10 9:21 ` David Woodhouse
2010-05-10 14:58 ` [alsa-devel] " Alan Stern
2010-05-10 14:58 ` Alan Stern
2010-05-11 1:06 ` FUJITA Tomonori
2010-05-11 1:06 ` FUJITA Tomonori
2010-05-11 14:00 ` Alan Stern
2010-05-11 14:00 ` Alan Stern
2010-05-11 14:22 ` FUJITA Tomonori
2010-05-11 14:24 ` Konrad Rzeszutek Wilk
2010-05-11 14:38 ` FUJITA Tomonori
2010-05-11 15:04 ` Alan Stern
2010-05-11 15:04 ` Alan Stern
2010-05-11 15:34 ` FUJITA Tomonori
2010-05-11 16:06 ` Alan Stern
2010-05-11 16:09 ` Daniel Mack
2010-05-11 16:48 ` Pedro Ribeiro
2010-05-11 17:10 ` Daniel Mack
2010-05-11 17:32 ` Pedro Ribeiro
2010-05-11 17:38 ` Daniel Mack [this message]
2010-05-12 23:50 ` Pedro Ribeiro
2010-05-13 9:36 ` Daniel Mack
2010-05-14 0:17 ` Pedro Ribeiro
2010-05-11 14:57 ` Alan Stern
2010-05-11 15:05 ` Daniel Mack
2010-05-10 14:31 ` Konrad Rzeszutek Wilk
2010-05-10 14:31 ` Konrad Rzeszutek Wilk
2010-05-07 11:42 ` Oliver Neukum
2010-05-07 11:42 ` Oliver Neukum
2010-05-07 11:47 ` Oliver Neukum
2010-05-07 11:47 ` Oliver Neukum
2010-05-07 11:58 ` Daniel Mack
2010-05-07 11:58 ` Daniel Mack
2010-05-07 14:45 ` [alsa-devel] " Alan Stern
2010-05-07 14:45 ` Alan Stern
2010-04-14 18:38 ` Chris Wright
2010-04-14 20:29 ` Alan Stern
2010-04-14 21:01 ` Konrad Rzeszutek Wilk
2010-04-14 21:12 ` Pedro Ribeiro
2010-04-15 1:50 ` Alan Stern
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