FreeDV modulator: get modem sample rate from settings

plugins/channeltx/modfreedv/freedvmodsettings.cpp

@@ -203,3 +203,12 @@ int FreeDVModSettings::getLowCutoff(FreeDVMode freeDVMode)
             break;
     }
 }
+
+int FreeDVModSettings::getModSampleRate(FreeDVMode freeDVMode)
+{
+    if (freeDVMode == FreeDVModSettings::FreeDVMode2400A) {
+        return 48000;
+    } else {
+        return 8000;
+    }
+}

plugins/channeltx/modfreedv/freedvmodsettings.h

@@ -75,6 +75,7 @@ struct FreeDVModSettings
 
     static int getHiCutoff(FreeDVMode freeDVMode);
     static int getLowCutoff(FreeDVMode freeDVMode);
+    static int getModSampleRate(FreeDVMode freeDVMode);
 };