speakers are not playing

[venky]

my speakers are not playing any sound i installed all drivers and nothing is muted but sound is not playing in speakers

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic i686
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: venkat 1064 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue Jun 21 15:16:05 2016
InstallationDate: Installed on 2016-06-20 (0 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Title: Bluetooth sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/06/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.03
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Gateway NE46Rs1
dmi.board.vendor: Acer
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.03:bd07/06/2015:svnAcer:pnGatewayNE46Rs1:pvrTobefilledbyO.E.M.:rvnAcer:rnGatewayNE46Rs1:rvrTobefilledbyO.E.M.:cvnAcer:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: Gateway NE46Rs1
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Acer