diff --git a/apps/repl/src/cmds/audio.rs b/apps/repl/src/cmds/audio.rs
index a65eea9b1..10f814de3 100644
--- a/apps/repl/src/cmds/audio.rs
+++ b/apps/repl/src/cmds/audio.rs
@@ -130,7 +130,7 @@ impl<'a> ShellCmdApi<'a> for Audio {
                     env.codec.swap_frames(&mut frames).unwrap();
                 } else if *routing_id == STOP_ID {
                     let mut ret = String::<1024>::new();
-                    env.codec.pause().unwrap(); // this should stop callbacks from occurring too.
+                    env.codec.abort().unwrap(); // this should stop callbacks from occurring too.
                     write!(ret, "{} {} {}.",
                         t!("replapp.audio.completion_a", xous::LANG),
                         self.framecount,
diff --git a/services/shellchat/src/cmds/audio.rs b/services/shellchat/src/cmds/audio.rs
index 4424291e8..8a183231a 100644
--- a/services/shellchat/src/cmds/audio.rs
+++ b/services/shellchat/src/cmds/audio.rs
@@ -111,7 +111,7 @@ impl<'a> ShellCmdApi<'a> for Audio {
                     // we'll get a callback that demands the next data...
                 }
                 "stop" => {
-                    self.codec.pause().unwrap(); // this should stop callbacks from occurring too.
+                    self.codec.abort().unwrap(); // this should stop callbacks from occurring too.
                     write!(ret, "Playback stopped at {} frames.", self.framecount).unwrap();
                     self.framecount = 0;
                     self.play_ptr_bytes = 0;
@@ -205,7 +205,7 @@ impl<'a> ShellCmdApi<'a> for Audio {
             } else {
                 log::debug!("stopping playback");
                 if self.framecount != 0 {
-                    self.codec.pause().unwrap(); // this should stop callbacks from occurring too.
+                    self.codec.abort().unwrap(); // this should stop callbacks from occurring too.
                     write!(ret, "Playback of {} frames finished", self.framecount).unwrap();
                     self.framecount = 0;
                     self.play_ptr_bytes = 0;
diff --git a/services/shellchat/src/cmds/test.rs b/services/shellchat/src/cmds/test.rs
index 4d24edca5..f52c809e5 100644
--- a/services/shellchat/src/cmds/test.rs
+++ b/services/shellchat/src/cmds/test.rs
@@ -360,7 +360,7 @@ impl<'a> ShellCmdApi<'a> for Test {
 
                 }
                 "astop" => {
-                    self.codec.pause().unwrap(); // this should stop callbacks from occurring too.
+                    self.codec.abort().unwrap(); // this should stop callbacks from occurring too.
                     write!(ret, "Playback stopped at {} frames.", self.framecount).unwrap();
                     self.framecount = 0;
                     self.play_sample = 0.0;
@@ -680,7 +680,7 @@ impl<'a> ShellCmdApi<'a> for Test {
                         _ => self.freq = 659.25,
                     }
                     if elapsed - self.oqc_start > 6000 {
-                        self.codec.pause().unwrap();
+                        self.codec.abort().unwrap();
 
                         // put system automatically into ship mode at conclusion of test
                         env.gam.shipmode_blank_request().unwrap();
diff --git a/services/shellchat/src/cmds/tts.rs b/services/shellchat/src/cmds/tts.rs
index b4830e7c9..15a3611fe 100644
--- a/services/shellchat/src/cmds/tts.rs
+++ b/services/shellchat/src/cmds/tts.rs
@@ -18,7 +18,7 @@ impl Tts {
 impl<'a> ShellCmdApi<'a> for Tts {
     cmd_api!(tts); // inserts boilerplate for command API
 
-    fn process(&mut self, args: String::<1024>, env: &mut CommonEnv) -> Result<Option<String::<1024>>, xous::Error> {
+    fn process(&mut self, args: String::<1024>, _env: &mut CommonEnv) -> Result<Option<String::<1024>>, xous::Error> {
         let mut ret = String::<1024>::new();
         let helpstring = "tts options: speak";