LinuxQuestions.org - alsa/esd not starting as local user,errs-/dev/dsp no permission

I reinstalled my debian testing distro(its running 1year+)
now runs a mixed(apt-pinning) unstable+experimental debian.
now my problem is i can run alsamixer or esd(sound server) as root,while if i try alsamixer as local user,it errs out-

Code:

prakash@sid:~$ alsamixer

alsamixer: function snd_ctl_open failed for default: No such device

and if i restart alsa after setting gstreamer-properties as autodetect and base as alsa.
and try start esd(enlightened sound daemon) as local user again it complains about /dev/dsp no sufficient permissions.

Code:

prakash@sid:~$ esd

/dev/dsp: Permission denied

so i am suspecting it has to do something with udev.if yes what file should i edit to get the permissions of /dev/dsp and /dev/mixer correctly.ie,if i set write permissions esd can start,and problem solved

Code:

sid:~# chmod 0666 /dev/dsp

sid:~# ll /dev/dsp

crw-rw-rw- 1 root audio 14, 3 2007-02-04 06:05 /dev/dsp

sid:~# chmod 0666 /dev/mixer

sid:~# ll /dev/mixer

crw-rw-rw- 1 root audio 14, 0 2007-02-04 06:05 /dev/mixer

so any solutions,thanks to all linuxers