From owner-freebsd-multimedia Sat Sep 6 07:09:38 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA14709 for multimedia-outgoing; Sat, 6 Sep 1997 07:09:38 -0700 (PDT) Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id HAA14703 for ; Sat, 6 Sep 1997 07:09:35 -0700 (PDT) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id OAA13548; Sat, 6 Sep 1997 14:58:19 +0200 From: Luigi Rizzo Message-Id: <199709061258.OAA13548@labinfo.iet.unipi.it> Subject: Re: snd970904.tgz - can't hear anything while sampling from CD. To: jacob@jblhome.ping.dk (Jacob Bohn Lorensen) Date: Sat, 6 Sep 1997 14:58:19 +0200 (MET DST) Cc: multimedia@FreeBSD.ORG In-Reply-To: <87iuwe4v5a.fsf@pippin.jblhome.ping.dk> from "Jacob Bohn Lorensen" at Sep 6, 97 12:02:38 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-multimedia@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Luigi Rizzo writes: > > > In order to remove the feedback, I decided to disconnect from the > > output mixer the source(s) currently being used for record. This > > explains the behaviour you see. > > But it makes it really difficult to sample for example the guitar solo > only from a song on a CD. I wish to do this and then somehow good point. > What was done in the old sound driver? I seem to remember having heard I think they just ignored the problem, but am not totally sure. > If you sample from the CD or "line in" only there should be no problem > with feedback? Only if you sample from a microphone should the input > source be cut away... I think... probably, yes. I will make it work this way in the next snap (and it's easy, look at sb_set_recmask(). I decided to cut all sources because lately I was testing vat (on a CS4236 though) using a source connected to the 'line' input, and assuming the SB16 in full duplex is ever supported I did not want to hear the feedback. Cheers Luigi