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From: Patrick Shirkey <pshirkey@boosthardware.com>
Cc: alsa-devel@lists.sourceforge.net, tiwai@suse.de
Subject: USB recording - repetitive peaks
Date: Tue, 02 Jul 2002 23:28:08 +0900	[thread overview]
Message-ID: <3D21B878.8090902@boosthardware.com> (raw)
In-Reply-To: s5hhejibem0.wl@alsa2.suse.de

Thanks to your patch Takashi we have two people who have been able to 
record through the quattro.

We have both found that there is a constant repetitive peak in the 
signal which reminds me of the problems I had with the cmipci for a 
brief period.

Thorsten Hass has recorded a perfect example for you which he did using 
aplay and arecord. It is a sine wave so is easy on the ears.

http://www.thorstenhaas.de/alsa/audio.file

He has also generated a jpeg plotted by an oscilloscope while recording 
which I can send you if it will help.

He has also asked if there is any chance you will have time to look at 
this in the two weeks. I believe he has to do some work with his device 
so needs to make a decision about which OS to use for the job.



-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================



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  reply	other threads:[~2002-07-02 14:28 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-01 17:07 [PATCH] USB MIDI driver Clemens Ladisch
2002-07-02 10:36 ` Takashi Iwai
2002-07-02 14:28   ` Patrick Shirkey [this message]
2002-07-02 14:57     ` USB recording - repetitive peaks Takashi Iwai
2002-07-02 15:35       ` Patrick Shirkey
2002-07-02 16:03         ` Takashi Iwai
2002-07-02 16:37           ` Patrick Shirkey
2002-07-02 16:39             ` Takashi Iwai
2002-07-02 17:08               ` Patrick Shirkey
2002-07-02 17:29                 ` Takashi Iwai
2002-07-02 18:04                 ` Patrick Shirkey
2002-07-02 18:26                   ` Patrick Shirkey
2002-07-02 18:38                     ` Patrick Shirkey
2002-07-04  9:41                       ` Takashi Iwai
2002-07-03  8:55                   ` Takashi Iwai
2002-07-04 16:23                     ` Patrick Shirkey
2002-07-04 16:26                       ` Takashi Iwai
2002-07-04 17:15                         ` Patrick Shirkey
2002-07-04 17:27                           ` Paul Davis
2002-07-05 13:44                           ` Takashi Iwai
2002-07-05 18:19                             ` Patrick Shirkey
2002-07-05 18:37                               ` Patrick Shirkey
2002-07-04 18:59                       ` Thorsten Haas
2002-07-05  6:56                         ` Thorsten Haas
2002-07-05  8:34                           ` Patrick Shirkey
2002-07-05  8:38                             ` Thorsten Haas
2002-07-05  9:06                               ` Thorsten Haas
2002-07-05 15:35                                 ` Takashi Iwai
2002-07-03  5:18             ` Fernando Pablo Lopez-Lezcano
2002-07-03  8:50               ` Takashi Iwai
2002-07-02 16:07         ` Patrick Shirkey
2002-07-02 14:51   ` Re: [PATCH] USB MIDI driver Takashi Iwai
2002-07-02 20:40     ` Pedro Lopez-Cabanillas
2002-07-02 22:10       ` Pedro Lopez-Cabanillas
2002-07-03 12:52     ` Clemens Ladisch
2002-07-03 13:18       ` Takashi Iwai
2002-07-03 14:42         ` Clemens Ladisch
2002-07-04  9:47           ` Takashi Iwai
2002-07-04 11:52             ` Clemens Ladisch
2002-07-05  7:55               ` Clemens Ladisch
2002-07-05 13:40                 ` Takashi Iwai

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