diff --git a/apps/playback.c b/apps/playback.c
index 9d03cd266c..2b08a99a8a 100644
--- a/apps/playback.c
+++ b/apps/playback.c
@@ -396,8 +396,18 @@ unsigned char *audio_get_buffer(bool talk_buf, size_t *buffer_size)
         logf("get buffer: talk_buf");
         /* ok to use everything from audiobuf to audiobufend */
         if (buffer_state != BUFFER_STATE_TRASHED)
+        {
             talk_buffer_steal();
-        buffer_state = BUFFER_STATE_TRASHED;
+#ifdef PLAYBACK_VOICE
+            if (NULL != iram_buf[CODEC_IDX_VOICE])
+            {
+                /* Voice could be swapped out - wait for it to return */
+                while (current_codec != CODEC_IDX_VOICE)
+                    yield();
+            }
+#endif /* PLAYBACK_VOICE */
+            buffer_state = BUFFER_STATE_TRASHED;
+        }
     }
     else
     {
@@ -423,6 +433,10 @@ void audio_iram_steal(void)
 #ifdef PLAYBACK_VOICE
     if (NULL != iram_buf[CODEC_IDX_VOICE])
     {
+        /* Can't already be stolen */
+        if (voice_iram_stolen)
+            return;
+
         /* Wait for voice to swap back in if current codec was audio */
         while (current_codec != CODEC_IDX_VOICE)
             yield();
@@ -455,15 +469,14 @@ unsigned char *audio_get_recording_buffer(size_t *buffer_size)
 
 #ifdef PLAYBACK_VOICE
 #ifdef IRAM_STEAL
-    end = dram_buf[CODEC_IDX_VOICE] ?
-            dram_buf[CODEC_IDX_VOICE] : audiobufend;
+    end = dram_buf[CODEC_IDX_VOICE];
 #else
-    end = iram_buf[CODEC_IDX_VOICE] ?
-            iram_buf[CODEC_IDX_VOICE] : audiobufend;
+    end = iram_buf[CODEC_IDX_VOICE];
 #endif /* IRAM_STEAL */
-#else
-    end = audiobufend;
+    if (NULL == end)
 #endif /* PLAYBACK_VOICE */
+        end = audiobufend;
+
 
     buffer_state = BUFFER_STATE_TRASHED;
 
diff --git a/firmware/pcm_playback.c b/firmware/pcm_playback.c
index a2d09e7c8d..8b5479cae9 100644
--- a/firmware/pcm_playback.c
+++ b/firmware/pcm_playback.c
@@ -48,9 +48,9 @@
     be shared semi-privately **/
 
 /* the registered callback function to ask for more mp3 data */
-pcm_more_callback_type pcm_callback_for_more = NULL;
-bool                   pcm_playing           = false;
-bool                   pcm_paused            = false;
+volatile pcm_more_callback_type pcm_callback_for_more = NULL;
+volatile bool                   pcm_playing           = false;
+volatile bool                   pcm_paused            = false;
 
 void pcm_play_dma_start(const void *addr, size_t size);
 void pcm_play_dma_stop(void);
diff --git a/firmware/pcm_record.c b/firmware/pcm_record.c
index 04289f36ec..a1b2afd1bf 100644
--- a/firmware/pcm_record.c
+++ b/firmware/pcm_record.c
@@ -55,9 +55,9 @@
     be shared semi-privately **/
 
 /* the registered callback function for when more data is available */
-pcm_more_callback_type pcm_callback_more_ready = NULL;
+volatile pcm_more_callback_type pcm_callback_more_ready = NULL;
 /* DMA transfer in is currently active */
-bool                   pcm_recording           = false;
+volatile bool                   pcm_recording           = false;
 
 /* APIs implemented in the target-specific portion */
 void pcm_rec_dma_start(const void *addr, size_t size);
diff --git a/firmware/target/coldfire/pcm-coldfire.c b/firmware/target/coldfire/pcm-coldfire.c
index 9cd66d772a..a0d3b67f58 100644
--- a/firmware/target/coldfire/pcm-coldfire.c
+++ b/firmware/target/coldfire/pcm-coldfire.c
@@ -44,13 +44,13 @@
 /** Semi-private shared symbols **/
 
 /* the registered callback function to ask for more pcm data */
-extern pcm_more_callback_type pcm_callback_for_more;
-extern bool pcm_playing;
-extern bool pcm_paused;
+extern volatile pcm_more_callback_type pcm_callback_for_more;
+extern volatile bool pcm_playing;
+extern volatile bool pcm_paused;
 
 /* the registered callback function for when more data is available */
-extern pcm_more_callback_type pcm_callback_more_ready;
-extern bool pcm_recording;
+extern volatile pcm_more_callback_type pcm_callback_more_ready;
+extern volatile bool pcm_recording;
 
 /* peaks */
 static int play_peak_left, play_peak_right;