espeak specifies rate in WPM but android specifies it as a percentage, therefore correctly scale against the default espeak WPM

jni/jni/com_google_espeakengine.cpp

 
 const int NUM_SUPPORTED_VOICES = 55;
 
-/* Integer constants */
-const int DEFAULT_SPEECH_RATE = 150;
-
 // Callback to the TTS API
 synthDoneCB_t *ttsSynthDoneCBPointer;
 
   }
 
   espeak_SetSynthCallback(eSpeakCallback);
-  espeak_SetParameter(espeakRATE, DEFAULT_SPEECH_RATE, 0);
 
   espeak_VOICE voice;
   memset(&voice, 0, sizeof(espeak_VOICE)); // Zero out the voice first
     // TODO: Set this property
     result = EE_OK;
   } else if (strncmp(property, "rate", 4) == 0) {
-    int rate = atoi(value) * DEFAULT_SPEECH_RATE / 100;
+    int rate = atoi(value) * espeak_GetParameter(espeakRATE, 0) / 100;
+    if (DEBUG) LOGV("setProperty rate : rate=%s, wpm=%d", value, rate);
     result = espeak_SetParameter(espeakRATE, rate, 0);
   } else if (strncmp(property, "pitch", 5) == 0) {
     int pitch = atoi(value);
     }
     return TTS_SUCCESS;
   } else if (strncmp(property, "rate", 4) == 0) {
-    int rate = espeak_GetParameter(espeakRATE, 1) * 100 / DEFAULT_SPEECH_RATE;
+    int rate = espeak_GetParameter(espeakRATE, 1) * 100 / espeak_GetParameter(espeakRATE, 0);
     char tmprate[4];
     sprintf(tmprate, "%d", rate);
     if (*iosize < strlen(tmprate)+1) {

jni/jni/com_googlecode_eyesfree_espeak_eSpeakService.cpp

 JNIEXPORT jboolean
 JNICALL Java_com_googlecode_eyesfree_espeak_SpeechSynthesis_nativeSetRate(
     JNIEnv *env, jobject object, jint rate) {
-  if (DEBUG) LOGV("%s", __FUNCTION__);
-  const espeak_ERROR result = espeak_SetParameter(espeakRATE, (int) rate, 0);
+  const int wpm = ((float)rate / 100) * espeak_GetParameter(espeakRATE, 0);
+  if (DEBUG) LOGV("%s(rate=%d, wpm=%d)", __FUNCTION__, rate, wpm);
+
+  const espeak_ERROR result = espeak_SetParameter(espeakRATE, wpm, 0);
 
   switch (result) {
     case EE_OK:             return JNI_TRUE;