Date: Mon, 18 Sep 2000 10:23:15 -0400 From: "Andresen,Jason R." <jandrese@mitre.org> To: "Georg-W. Koltermann" <gwk@sgi.com> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: SB16: recording 8 bit ok, 16 bit recording just gives noise Message-ID: <39C62553.B79294A7@mitre.org> References: <39C54B37.A229A4F@sgi.com>
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"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: <SB DSP 4.13> 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
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