diff --git a/libobs/obs-audio.c b/libobs/obs-audio.c
index 4b1be046bfdae2a2d28e52c591d4662177699c7a..c715b3a6a16029c3d0bdd4f384227b921261b3c0 100644
--- a/libobs/obs-audio.c
+++ b/libobs/obs-audio.c
@@ -88,6 +88,7 @@ static void ignore_audio(obs_source_t *source, size_t channels,
 			circlebuf_pop_front(&source->audio_input_buf[ch], NULL,
 					source->audio_input_buf[ch].size);
 
+		source->last_audio_input_buf_size = 0;
 		source->audio_ts += (uint64_t)num_floats * 1000000000ULL /
 			(uint64_t)sample_rate;
 	}
@@ -198,6 +199,8 @@ static inline void discard_audio(struct obs_core_audio *audio,
 	for (size_t ch = 0; ch < channels; ch++)
 		circlebuf_pop_front(&source->audio_input_buf[ch], NULL, size);
 
+	source->last_audio_input_buf_size = 0;
+
 #if DEBUG_AUDIO == 1
 	if (is_audio_source)
 		blog(LOG_DEBUG, "audio discarded, new ts: %"PRIu64,
diff --git a/libobs/obs-source.c b/libobs/obs-source.c
index 7202408ef8b7dd5686a0b714595e2712a28d9278..b5ae5f15af25873899374e0e131d19ef70a8a8bd 100644
--- a/libobs/obs-source.c
+++ b/libobs/obs-source.c
@@ -985,6 +985,7 @@ static void reset_audio_data(obs_source_t *source, uint64_t os_time)
 					source->audio_input_buf[i].size);
 	}
 
+	source->last_audio_input_buf_size = 0;
 	source->audio_ts = os_time;
 }
 
@@ -1058,6 +1059,8 @@ static void source_output_audio_place(obs_source_t *source,
 				source->audio_input_buf[i].size -
 				(buf_placement + size));
 	}
+
+	source->last_audio_input_buf_size = 0;
 }
 
 static inline void source_output_audio_push_back(obs_source_t *source,
@@ -1074,6 +1077,10 @@ static inline void source_output_audio_push_back(obs_source_t *source,
 	for (size_t i = 0; i < channels; i++)
 		circlebuf_push_back(&source->audio_input_buf[i],
 				in->data[i], size);
+
+	/* reset audio input buffer size to ensure that audio doesn't get
+	 * perpetually cut */
+	source->last_audio_input_buf_size = 0;
 }
 
 static inline bool source_muted(obs_source_t *source, uint64_t os_time)