Check more carefully if an exact rate and format match should be searched for. If it fails, instead of failing completely, look for the best format at the same rate.

audio.c

@@ -959,21 +959,30 @@ int32_t search_for_suitable_configuration(unsigned int channels, unsigned int ra
         local_rate = rate; // begin with the requested rate
         debug(3, "check for an exact multiple of %u with %u channels.", rate, local_channels);
         while ((local_rate <= 384000) && (local_format == SPS_FORMAT_UNKNOWN)) {
+          // first, if we in a circumstance where no further audio processing,
+          // e.g. volume adjustment or convolution is required, check_
+          // for an exact rate and bit depth match with the same or more channels
           if (
             // clang-format off
             // check for the exact format only under these conditions, otherwise look for the best
             (config.ignore_volume_control != 0) &&
             (config.volume_max_db_set == 0) &&
+#ifdef CONFIG_CONVOLUTION
+            (config.convolution_enabled == 0) &&
+#endif
+            (config.loudness_enabled == 0) &&
             (local_rate == rate) &&
             (local_channels >= channels) &&
             (config.playback_mode != ST_mono)
             // clang-format on
           ) {
-            // debug(1, "check exact");
+            // debug(1, "first, check exact rate and format");
             local_format = check_configuration_with_formats(
                 local_channels, local_rate, (sps_format_t)format, check_configuration);
-          } else {
-            // debug(1, "check best");
+          }
+          
+          if (local_format == SPS_FORMAT_UNKNOWN) {
+            // debug(1, "check best, with any format");
             local_format = check_configuration_with_formats(local_channels, local_rate,
                                                             SPS_FORMAT_S32, check_configuration);
           }