quieten some debug messages.

audio_alsa.c

@@ -884,7 +884,7 @@ int prepare_mixer() {
           audio_alsa.parameters = &parameters; // likewise the parameters stuff
           if (alsa_mix_mindb == SND_CTL_TLV_DB_GAIN_MUTE) {
             // For instance, the Raspberry Pi does this
-            debug(1, "Lowest dB value is a mute");
+            debug(2, "Lowest dB value is a mute");
             mixer_volume_setting_gives_mute = 1;
             alsa_mix_mute = SND_CTL_TLV_DB_GAIN_MUTE; // this may not be
                                                       // necessary -- it's

rtp.c

@@ -1411,7 +1411,7 @@ int get_ptp_anchor_local_time_info(rtsp_conn_info *conn, uint32_t *anchorRTP,
 
             if (actual_clock_id == conn->actual_anchor_clock) {
               int64_t cumulative_deviation = conn->anchor_time - conn->actual_anchor_time;
-              debug(1,
+              debug(2,
                     "The original master clock has become the master clock again."
                     "The estimated clock time "
                     "was %f ms ahead(+) or behind (-) the original master clock time.",