diff --git a/test/test_audio.cpp b/test/test_audio.cpp
index e2c72dd..1bd18b3 100644
--- a/test/test_audio.cpp
+++ b/test/test_audio.cpp
@@ -161,7 +161,7 @@ int run_test(int num_channels, int sampling_rate, int is_float)
   }
 
   r = cubeb_stream_init(ctx, &stream, "test tone", NULL, NULL, NULL, &params,
-                        100, is_float ? data_cb_float : data_cb_short, state_cb, synth);
+                        4096, is_float ? data_cb_float : data_cb_short, state_cb, synth);
   if (r != CUBEB_OK) {
     fprintf(stderr, "Error initializing cubeb stream: %d\n", r);
     goto cleanup;
diff --git a/test/test_record.cpp b/test/test_record.cpp
index 1d27eef..5dbfb61 100644
--- a/test/test_record.cpp
+++ b/test/test_record.cpp
@@ -106,7 +106,7 @@ int main(int argc, char *argv[])
   params.channels = 1;
 
   r = cubeb_stream_init(ctx, &stream, "Cubeb record (mono)", NULL, &params, NULL, nullptr,
-                        250, data_cb, state_cb, &stream_state);
+                        4096, data_cb, state_cb, &stream_state);
   if (r != CUBEB_OK) {
     fprintf(stderr, "Error initializing cubeb stream\n");
     return r;
diff --git a/test/test_tone.cpp b/test/test_tone.cpp
index 82bcb80..ae5ac80 100644
--- a/test/test_tone.cpp
+++ b/test/test_tone.cpp
@@ -128,7 +128,7 @@ int main(int argc, char *argv[])
   user_data->position = 0;
 
   r = cubeb_stream_init(ctx, &stream, "Cubeb tone (mono)", NULL, NULL, NULL, &params,
-                        250, data_cb, state_cb, user_data);
+                        4096, data_cb, state_cb, user_data);
   if (r != CUBEB_OK) {
     fprintf(stderr, "Error initializing cubeb stream\n");
     return r;