From owner-freebsd-multimedia Mon Sep 18 7:23:21 2000 Delivered-To: freebsd-multimedia@freebsd.org Received: from smtpproxy1.mitre.org (mb-20-100.mitre.org [129.83.20.100]) by hub.freebsd.org (Postfix) with ESMTP id BCCF437B423 for ; Mon, 18 Sep 2000 07:23:17 -0700 (PDT) Received: from avsrv1.mitre.org (avsrv1.mitre.org [129.83.20.58]) by smtpproxy1.mitre.org (8.9.3/8.9.3) with ESMTP id KAA05852 for ; Mon, 18 Sep 2000 10:23:11 -0400 (EDT) Received: from mailsrv2.mitre.org (mailsrv2.mitre.org [129.83.221.17]) by smtpsrv1.mitre.org (8.9.3/8.9.3) with ESMTP id KAA07332 for ; Mon, 18 Sep 2000 10:20:11 -0400 (EDT) Received: from mitre.org ([128.29.145.140]) by mailsrv2.mitre.org (Netscape Messaging Server 4.1) with ESMTP id G136MK00.VKM; Mon, 18 Sep 2000 10:23:08 -0400 Message-ID: <39C62553.B79294A7@mitre.org> Date: Mon, 18 Sep 2000 10:23:15 -0400 From: "Andresen,Jason R." Organization: The MITRE Corporation X-Mailer: Mozilla 4.73 [en]C-20000509M (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: "Georg-W. Koltermann" Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: SB16: recording 8 bit ok, 16 bit recording just gives noise References: <39C54B37.A229A4F@sgi.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org "Georg-W. Koltermann" wrote: > > I am trying to record with my SoundBlaster16 ISA card. > > Playing sounds and recording 8 bit sounds works ok. If I try to record > 16 bit sounds, I just get noise. Does anybody know this behaviour? > > My kernel config is (FreeBSD 4.1-RELEASE): > > device pcm > device sbc0 at isa? port 0x220 irq 10 drq 1 flags 0x15 > > cat /dev/sndstat says: > > FreeBSD Audio Driver (newpcm) Sep 9 2000 00:45:09 > Installed devices: > pcm0: at io 0x220 irq 10 drq 1:5 (1p/1r channels duplex) > > I am using the same configuration values (IO, IRQ, DMA) that Windoze > uses. These early ISA Soundblaster cards have a bug that prevents you from playing and recording at 16 bits. If you are playing a sound, you are limited to recording at 8 bits. (1 1/2 duplex card). -- _ _ _ ___ ____ ___ ______________________________________ / \/ \ | ||_ _|| _ \|___| | Jason Andresen -- jandrese@mitre.org / /\/\ \ | | | | | |/ /|_|_ | Views expressed may not reflect those /_/ \_\|_| |_| |_|\_\|___| | of the Mitre Corporation. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message