Ronan, Like Sergei already said, split the topic because it is getting confusing and has (almost) nothing to do with RME anymore. Regards, Johan On Saturday 27 January 2007 18:32, ronan mcallister wrote: > Sergei, > > For the moment forgetting about the Xover's, how would I use ecasound or > another tool to implement an arbitrary EQ function with sliders / user > controls? I've got JACK now running better (mainly a problem related to > configuration) and I'd like to have maybe a dozen or more bands of very LF > EQ (eg, fc: 5hz, 8hz, 12hz,.... 100hz) for subsonic equalization. > > So far it appears brutefir can do this but sans a GUI? What plugin would I > need and is it extensible? > > should I start a new topic to discuss the IIR based EQ you hinted about? > > Thank you very much, > Ronan > > > On 1/24/07, Sergei Steshenko <steshenko_sergei@xxxxxxx> wrote: > > > > On Wed, 24 Jan 2007 15:53:53 -0800 > > "ronan mcallister" <bass.woofer@xxxxxxxxx> wrote: > > > > > Sergei, > > > > > > I am not familiar enough with what I need to say I must have Jack. In > > fact, > > > I can playback a simple WAV file by "ecasound -i songmept1.wav-o:alsahw" > > > just fine. I think my Alsa system is OK, I was thinking I'd need Jack > > to > > > allow me to impement signal processing using tools like bruteFIR, Jamin, > > > etc. > > > > > > Should I be able to configure a basic active crossover (lowpass and high > > > pass) and perhaps a parametric EQ without Jack? > > > > > > Let's say for a simple test I want to take my WAV, play it back with > > > ecasound, route it to BruteFIR (or some other tool ) and implement a > > xover > > > with separate high pass and low pass outputs driving external > > amplifiers. > > > I've currently got the Intel ICH7 multi-channel HD sound card, although > > of > > > course I realize this wont' be a good solution for much more than a > > simple > > > test, should this inbuilt capability work for my simple test sans jack? > > > > > > Very sorry for my rank amateurish level of Linux audio knowledge and > > thanks > > > for your help. > > > > > > Rgds, > > > ronan > > > > > > > First of all, I'm not sure you really need bruteFIR. > > > > I have very good headphones and I've played a lot with equalizers. > > > > If I suppress just one band in 1/6 octave equalizer I barely hear > > the difference - I do not think my ears have that bad hearing. > > > > So, I think, a decent equalizer should be quite sufficient for your > > equalization tasks, and bruteFIR is apparently an overkill. > > > > Also, the more fine equalization you try to achieve, the more dependent > > on your head location in the sound fields you become - remember about > > standing waves, etc. > > > > I did myself do equalization with ecasound without jack. > > > > That's because: > > > > 1) ecasound can input sound from ALSA; > > 2) ecasound can output sound to ALSA; > > 3) ecasosund is able to insert a LADSPA plugin on the way, and the latter > > can be the one doing equalization. > > > > Regards, > > Sergei. > > > > P.S. I think I've already recommended to buy a cheap old well supported > > card like SB128 - es1371 driver - just to debug non-ALSA related issues, > > like mixing, routing, equalization, latency. > > > > I myself very much liked M-Audio Revolution 7.1, and people are > > saying there is a much cheaper Chaintech one (something like AV710, > > don't remember exactly) which has quite comparable to M-Audio Revolution > > 7.1 > > quality. > > > > -- > > Visit my http://appsfromscratch.berlios.de/ open source project. > > > -- You're never alone when you hear voices inside your head. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
