diff --git a/devices/src/pci/ac97_bus_master.rs b/devices/src/pci/ac97_bus_master.rs
index cd32f3586e..83ccbc2060 100644
--- a/devices/src/pci/ac97_bus_master.rs
+++ b/devices/src/pci/ac97_bus_master.rs
@@ -490,7 +490,7 @@ impl Ac97BusMaster {
     }
 
     fn start_audio(&mut self, func: Ac97Function, mixer: &Ac97Mixer) -> Result<(), Box<dyn Error>> {
-        const AUDIO_THREAD_RTPRIO: u16 = 12; // Matches other cros audio clients.
+        const AUDIO_THREAD_RTPRIO: u16 = 10; // Matches other cros audio clients.
 
         match func {
             Ac97Function::Input => {
diff --git a/seccomp/arm/cras_audio_device.policy b/seccomp/arm/cras_audio_device.policy
index 06d63d1130..ef9b5eda75 100644
--- a/seccomp/arm/cras_audio_device.policy
+++ b/seccomp/arm/cras_audio_device.policy
@@ -8,6 +8,7 @@ madvise: 1
 prlimit64: 1
 setrlimit: 1
 recvmsg: 1
+sched_setscheduler: 1
 sendmsg: 1
 socketpair: arg0 == AF_UNIX
 clock_gettime: 1
diff --git a/seccomp/x86_64/cras_audio_device.policy b/seccomp/x86_64/cras_audio_device.policy
index e5a074ec04..1e440e3cde 100644
--- a/seccomp/x86_64/cras_audio_device.policy
+++ b/seccomp/x86_64/cras_audio_device.policy
@@ -8,5 +8,6 @@ madvise: 1
 prlimit64: 1
 setrlimit: 1
 recvmsg: 1
+sched_setscheduler: 1
 sendmsg: 1
 socketpair: arg0 == AF_UNIX