From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David E. Storey" Subject: Re: Getting actual sample rate Date: 11 Jun 2003 00:07:52 -0400 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <1055304472.600.11.camel@localhost> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-GcNUbtF8ZxfmkaoqNw5U" Return-path: In-Reply-To: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: alsa List-Id: alsa-devel@alsa-project.org --=-GcNUbtF8ZxfmkaoqNw5U Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2003-06-10 at 16:26, Paul Davis wrote: > thomas's code works on the hdsp i think, and is easily adapted to the > digi9652. he also has written totalmix for linux. i don't know why he > hasn't released it yet. thomas? that would be handy. I've successfully used ALSA and an HDSP to do in ear monitor mixing for a band I run sound for. But I'm only guessing at: a) converting "fader" levels to something logarithmic like db b) converting fader levels to the 0-65535 exponential scale that the hdsp uses, and c) converting the 0-65535 back into fader levels I've got some questions into one of the guys at RME that developed this thing to see how they do it. Any insight would be excellent as I'm about to plop down some cash on an ADI 8 Pro to expand out to 16 channels through my HDSP... I've also successfully captured peak and RMS levels via the snd_hwdep_ioctl() interface, but I'm a) unsure of how to convert that to something graphical and b) how often to call the ioctl to display. (I'm assuming that it's only as often as I want to refresh the levels which I can easily do with a timer.) d! --=-GcNUbtF8ZxfmkaoqNw5U Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQA+5qsY+5sC2muyxOMRAiZWAJ9LYpwMDynMQsI11EqRjVSrvHHMZQCeJg2p Df5JEU/MKSfVQDj8htewlKs= =hRTd -----END PGP SIGNATURE----- --=-GcNUbtF8ZxfmkaoqNw5U-- ------------------------------------------------------- This SF.net email is sponsored by: Etnus, makers of TotalView, The best thread debugger on the planet. Designed with thread debugging features you've never dreamed of, try TotalView 6 free at www.etnus.com.