求助！5.1ch的声卡，alsa如何配置？

abfall

求助，我的只有两个响。
谢谢
c-media 8738
mnadrake9.1

abfall

没人知道吗？

nbxmedia

我想ALSA的作者不会太多考虑吧，毕竟一个驱动要照顾那么多声卡…………
alsaconfig，然后alsamixer试试。

abfall

你能说一下多声道支持的大体方法吗？
咱就
不说特殊的

nbxmedia

多声道是由声卡的驱动支持的，不过好象就听说过SB live能支持4声道。

abfall

会不会啊！
如果真懂就说说，不懂就算。
不要老发据说等半吊子的话！！！

abfall

[herrben@localhost music]$ mplayer 01.mp3 -ao alsa9:surround40 -channels 4
Using GNU internationalization
Original domain: messages
Original dirname: /usr/share/locale
Current domain: mplayer
Current dirname: /usr/share/locale


MPlayer 0.90rc4-3.2.1 (C) 2000-2003 Arpad Gereoffy (see DOCS)

CPU: Intel  (Family: 8, Stepping: 4)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with Runtime CPU Detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection
Reading config file /etc/mplayer/mplayer.conf
Reading config file /home/herrben/.mplayer/config
Reading /home/herrben/.mplayer/codecs.conf: can't open '/home/herrben/.mplayer/codecs.conf': No such file or directory
Reading /etc/mplayer/codecs.conf: 50 audio & 135 video codecs
font: can't open file: /home/herrben/.mplayer/font/font.desc
Font /usr/share/mplayer/font/font.desc loaded successfully! (206 chars)
Failed to open /dev/rtc: Permission denied (mplayer should be setuid root or /dev/rtc should be readable by the user.)
Using usleep() timing
Can't open input config file /home/herrben/.mplayer/input.conf : No such file or directory
Input config file /etc/mplayer/input.conf parsed : 52 binds
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0 : No such file or directory
Can't init input joystick
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support.
You will not be able to use your remote control.

Playing 01.mp3
Cache fill: 19.82% (1662976 bytes)    Audio file detected.
Clip info:
Title: 后来
Artist: 刘若英
Album: MUSIC SITE音乐空间
Year: 2000
Comment:
Track: 1
Genre: Unknown
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
MP3lib: init layer2&3 finished, tables done
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 10000->176400 (80.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
Checking audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/4ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 44100 hz, little endian signed int
AF_pre: 44100Hz 2ch Signed 16-bit (Little-Endian)
alsa-init: testing and bugreports are welcome.
alsa-init: requested format: 44100 Hz, 4 channels, Signed 16-bit (Little-Endian)
alsa-init: soundcard set to surround40
alsa-init: unable to set channels: Invalid argument
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video


Exiting... (End of file)

abfall

根据上面看alsa 有多声道的模式，可是我没设好。
该如何设呢…？

cyhwy

好像cmi8738有专门的驱动吧，声卡光盘上带的

cyhwy

需要重新编译内核