From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damon Chaplin Subject: Re: Problem with CME UF5 MIDI keyboard master volume slider Date: Wed, 08 Aug 2007 14:53:59 +0100 Message-ID: <1186581239.3160.6.camel@localhost.localdomain> References: <1186223690.3246.11.camel@localhost.localdomain> <1186396868.28794.1203930879@webmail.messagingengine.com> <1186503487.3160.26.camel@localhost.localdomain> <1186560704.30326.1204316209@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mra05.ch.as12513.net (mra05.ch.as12513.net [82.153.254.73]) by alsa0.perex.cz (Postfix) with ESMTP id 7EBC0103951 for ; Wed, 8 Aug 2007 15:54:26 +0200 (CEST) In-Reply-To: <1186560704.30326.1204316209@webmail.messagingengine.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Clemens Ladisch Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Wed, 2007-08-08 at 10:11 +0200, Clemens Ladisch wrote: > Damon Chaplin wrote: > > If I move the slider I get this in rawmidi (4 lines for each increment): > > > > read f0 > > read 01 > > read 7f > > read 7e > > > > read f0 > > read 01 > > read 7f > > read 7d > > > > Are they valid MIDI messages? > > No. These look like the first four bytes of master volume sysex > messages, but anything after the first four bytes seems to be missing. > Sysex messages end with a F7 byte, so it's possible that the following > data gets misinterpreted. > > Please show the output of "amidi --dump" with some key presses after > you've used the master volume slider. Here's a few key presses, then some master volume slider movement, then another few keypresses: 90 2B 4A 80 2B 24 90 30 34 80 30 27 90 34 3A 80 34 3A F0 01 7F 7D F0 01 7F 7C F0 01 7F 7B F0 01 7F 7A F0 01 7F 79 F0 01 7F 78 F0 01 7F 77 F0 01 7F 76 90 2D 29 80 2D 1D 90 30 29 80 30 24 90 34 49 80 34 34 Damon (By the way another UF5 user has noticed the same problem, so it isn't just my system. And I'm using Fedora 6, which has alsa-lib-1.0.12-2.fc6)