diff --git a/lib_util/masa_file_writer.c b/lib_util/masa_file_writer.c
index 3f269a68717c6d1a55196bb04c5304bb1315dcb7..a2fcef42e4540da06e651a92d7f507f27c03e057 100644
--- a/lib_util/masa_file_writer.c
+++ b/lib_util/masa_file_writer.c
@@ -298,18 +298,21 @@ ivas_error MasaFileWriter_writeFrame(
         for ( dir = 0; dir < numDirections; dir++ )
         {
             /* Spherical index */
+            hMasaExtOutMeta->directionIndex[dir][sf][0] = 100;
             if ( fwrite( hMasaExtOutMeta->directionIndex[dir][sf], sizeof( uint16_t ), MASA_FREQUENCY_BANDS, self->file ) != MASA_FREQUENCY_BANDS )
             {
                 return IVAS_ERR_FAILED_FILE_WRITE;
             }
 
             /* Direct-to-total ratio */
+            hMasaExtOutMeta->directToTotalRatio[dir][sf][0] = 100;
             if ( fwrite( hMasaExtOutMeta->directToTotalRatio[dir][sf], sizeof( uint8_t ), MASA_FREQUENCY_BANDS, self->file ) != MASA_FREQUENCY_BANDS )
             {
                 return IVAS_ERR_FAILED_FILE_WRITE;
             }
 
             /* Spread coherence */
+            hMasaExtOutMeta->spreadCoherence[dir][sf][0] = 123;
             if ( fwrite( hMasaExtOutMeta->spreadCoherence[dir][sf], sizeof( uint8_t ), MASA_FREQUENCY_BANDS, self->file ) != MASA_FREQUENCY_BANDS )
             {
                 return IVAS_ERR_FAILED_FILE_WRITE;
@@ -318,12 +321,14 @@ ivas_error MasaFileWriter_writeFrame(
 
         /* Common spatial meta */
         /* Diffuse-to-total ratio = 1 - sum(direct-to-total ratios) */
+        hMasaExtOutMeta->diffuseToTotalRatio[sf][0] = 55;
         if ( fwrite( hMasaExtOutMeta->diffuseToTotalRatio[sf], sizeof( uint8_t ), MASA_FREQUENCY_BANDS, self->file ) != MASA_FREQUENCY_BANDS )
         {
             return IVAS_ERR_FAILED_FILE_WRITE;
         }
 
         /* Surround coherence */
+        hMasaExtOutMeta->surroundCoherence[sf][0] = 5;
         if ( fwrite( hMasaExtOutMeta->surroundCoherence[sf], sizeof( uint8_t ), MASA_FREQUENCY_BANDS, self->file ) != MASA_FREQUENCY_BANDS )
         {
             return IVAS_ERR_FAILED_FILE_WRITE;