Date: Wed, 18 Mar 1998 16:46:53 +0800 From: Richard Goh <accel@pacific.net.sg> To: NAGAO -abtk- Tadaaki <nagao@cs.titech.ac.jp> Cc: multimedia@FreeBSD.ORG Subject: Re: pcaudio volume Message-ID: <v03110700b13539ca5fbe@[165.21.154.102]> In-Reply-To: <19980318023337U.abtk@wo-ppp1.cs.titech.ac.jp> References: Your message of "Mon, 16 Mar 1998 16:06:19 %2B0800" <v03110701b1328cc91f06@[165.21.161.136]> <v03110701b1328cc91f06@[165.21.161.136]>
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Thanks! Will try it !
Just bought a sound card :(
But its only S$26 ( US$16 ) :)
speakers cost slight more.
but will try your code first.
thanks
Richard
At 1:33 AM +0800 3/18/98, NAGAO -abtk- Tadaaki wrote:
>Hi,
>
>In message <v03110701b1328cc91f06@[165.21.161.136]>,
> accel@pacific.net.sg (Richard Goh) wrote:
>[pcaudio's volume is so low]
>> Is there a way to set the volume or any documentation on this. I have tried
>> the handbook, faq and the archives without much luck.
>
>Here attached a simple sample code to set the volume.
>Try to save it as "pcavolume.c", compile it and use, for example:
> ./pcavolume 500
>(though the message in the code says that volume must be 0-100,
> much larger values can actually be specified.)
>
>Still low? Then try 1000, 2000 ..., as large as can be stored into
>"int". :-)
>
>ps.
>I'd like to recommend you to buy a sound card and use it instead of
>pcaudio which uses your "beep" hardware. (The "beep" hardware is
>not designed for high-quality audio sounds :-)
>
>Cheers,
>-- Tada
> NAGAO Tadaaki <nagao@cs.titech.ac.jp>
>
>Content-Type: Text/Plain; charset=us-ascii
>Content-Transfer-Encoding: 7bit
>Content-Description: pcavolume.c
>
>#include <stdio.h>
>#include <fcntl.h>
>#include <err.h>
>#include <sys/ioctl.h>
>#include <machine/pcaudioio.h>
>
>int
>main(int argc, char **argv)
>{
> int fd;
> audio_info_t ainfo;
>
> if (argc < 2)
> errx(1, "specify volume(0-100)");
>
> AUDIO_INITINFO(&ainfo);
> ainfo.play.gain = atoi(argv[1]);
>
> if ((fd = open("/dev/pcaudioctl", O_RDONLY, 0)) < 0)
> err(1, "/dev/pcaudioctl");
>
> if (ioctl(fd, AUDIO_SETINFO, &ainfo) < 0)
> err(1, "AUDIO_SETINFO");
>
> return 0;
>}
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