diff --git a/com/breakfastquay/rubberband/RubberBandStretcher.java b/com/breakfastquay/rubberband/RubberBandStretcher.java
index 8469d621..036516d7 100644
--- a/com/breakfastquay/rubberband/RubberBandStretcher.java
+++ b/com/breakfastquay/rubberband/RubberBandStretcher.java
@@ -23,6 +23,9 @@ License, or (at your option) any later version.  See the file
 
 package com.breakfastquay.rubberband;
 
+import java.util.Map;
+import java.util.Set;
+
 public class RubberBandStretcher
 {
     public RubberBandStretcher(int sampleRate, int channels,
@@ -45,6 +48,8 @@ public RubberBandStretcher(int sampleRate, int channels,
     public native double getTimeRatio();
     public native double getPitchScale();
 
+    public native int getPreferredStartPad();
+    public native int getStartDelay();
     public native int getLatency();
 
     public native void setTransientsOption(int options);
@@ -54,11 +59,25 @@ public RubberBandStretcher(int sampleRate, int channels,
     public native void setPitchOption(int options);
 
     public native void setExpectedInputDuration(long samples);
+    public native int getProcessSizeLimit();
     public native void setMaxProcessSize(int samples);
 
     public native int getSamplesRequired();
 
-    //!!! todo: setKeyFrameMap
+    public native void setKeyFrameMap(long[] from, long[] to);
+    public void setKeyFrameMap(Map<Long, Long> m) {
+        Set<Long> keys = m.keySet();
+        int n = keys.size();
+        long[] from = new long[n];
+        long[] to = new long[n];
+        int i = 0;
+        for (Long k : keys) {
+            from[i] = k.longValue();
+            to[i] = m.get(k).longValue();
+            ++i;
+        }
+        setKeyFrameMap(from, to);
+    }
 
     public native void study(float[][] input, int offset, int n, boolean finalBlock);
     public void study(float[][] input, boolean finalBlock) {
@@ -120,6 +139,9 @@ private native void initialise(int sampleRate, int channels, int options,
     public static final int OptionChannelsApart        = 0x00000000;
     public static final int OptionChannelsTogether     = 0x10000000;
 
+    public static final int OptionEngineFaster         = 0x00000000;
+    public static final int OptionEngineFiner          = 0x20000000;
+
     public static final int DefaultOptions             = 0x00000000;
     public static final int PercussiveOptions          = 0x00102000;
 
diff --git a/com/breakfastquay/rubberband/test/RubberBandTest.java b/com/breakfastquay/rubberband/test/RubberBandTest.java
new file mode 100644
index 00000000..578f5ecc
--- /dev/null
+++ b/com/breakfastquay/rubberband/test/RubberBandTest.java
@@ -0,0 +1,110 @@
+
+package com.breakfastquay.rubberband.test;
+
+import com.breakfastquay.rubberband.RubberBandStretcher;
+
+import java.util.TreeMap;
+
+public class RubberBandTest
+{
+
+    public static void main(String[] args) {
+
+        int channels = 1;
+        int rate = 44100;
+        
+        RubberBandStretcher stretcher = new RubberBandStretcher
+            (rate,
+             channels,
+             RubberBandStretcher.OptionEngineFiner +
+             RubberBandStretcher.OptionProcessOffline,
+             1.0,
+             1.0);
+
+        stretcher.setTimeRatio(1.5);
+        stretcher.setPitchScale(0.8);
+        
+        System.err.println
+            (String.format("Channel count: %d\n" +
+                           "Time ratio: %f\n" +
+                           "Pitch scale: %f\n" +
+                           "Preferred start pad: %d\n" +
+                           "Start delay: %d\n" +
+                           "Process size limit: %d",
+                           stretcher.getChannelCount(),
+                           stretcher.getTimeRatio(),
+                           stretcher.getPitchScale(),
+                           stretcher.getPreferredStartPad(),
+                           stretcher.getStartDelay(),
+                           stretcher.getProcessSizeLimit()
+                ));
+
+        int blocksize = 1024;
+        int blocks = 400;
+        double freq = 440.0;
+        
+        stretcher.setMaxProcessSize(blocksize);
+
+        TreeMap<Long, Long> keyFrameMap = new TreeMap<Long, Long>();
+        keyFrameMap.put((long)(3 * rate), (long)(4 * rate));
+        keyFrameMap.put((long)(5 * rate), (long)(5 * rate));
+        stretcher.setKeyFrameMap(keyFrameMap);
+
+        float[][] buffer = new float[channels][blocksize];
+
+        int i0 = 0;
+
+        for (int block = 0; block < blocks; ++block) {
+
+            for (int c = 0; c < channels; ++c) {
+                for (int i = 0; i < blocksize; ++i) {
+                    buffer[c][i] = (float)Math.sin
+                        ((double)i0 * freq * Math.PI * 2.0 / (double)rate);
+                    if (i0 % rate == 0) {
+                        buffer[c][i] = 1.f;
+                    }
+                    ++i0;
+                }
+            }
+            
+            stretcher.study(buffer, block + 1 == blocks);
+        }
+
+        i0 = 0;
+
+        for (int block = 0; block < blocks; ++block) {
+
+            for (int c = 0; c < channels; ++c) {
+                for (int i = 0; i < blocksize; ++i) {
+                    buffer[c][i] = (float)Math.sin
+                        ((double)i0 * freq * Math.PI * 2.0 / (double)rate);
+                    if (i0 % rate == 0) {
+                        buffer[c][i] = 1.f;
+                    }
+                    ++i0;
+                }
+            }
+            
+            stretcher.process(buffer, block + 1 == blocks);
+
+            while (true) {
+                int available = stretcher.available();
+                if (available <= 0) {
+                    break;
+                }
+                int requested = available;
+                if (requested > blocksize) {
+                    requested = blocksize;
+                }
+                int obtained = stretcher.retrieve(buffer, 0, requested);
+                for (int i = 0; i < obtained; ++i) {
+                    System.out.println(Float.toString(buffer[0][i]));
+                }
+            }
+        }
+        
+        stretcher.dispose();
+    }
+    
+}
+
diff --git a/meson.build b/meson.build
index 050dbd56..4f4408f9 100644
--- a/meson.build
+++ b/meson.build
@@ -65,6 +65,10 @@ java_sources = [
   'com/breakfastquay/rubberband/RubberBandStretcher.java',
 ]
 
+java_test_sources = [
+  'com/breakfastquay/rubberband/test/RubberBandTest.java',
+]
+
 program_sources = [
   'main/main.cpp',
 ]
@@ -655,7 +659,8 @@ if have_jni
     # NB the JNI library is not versioned
     install: true,
   )
-  jar('rubberband', 'com/breakfastquay/rubberband/RubberBandStretcher.java')
+  jar('rubberband', java_sources)
+  jar('rubberband-test', java_test_sources)
 else
   target_summary += { 'JNI library': false }
   if not have_java
diff --git a/rubberband/RubberBandStretcher.h b/rubberband/RubberBandStretcher.h
index 6b883a87..79234f4f 100644
--- a/rubberband/RubberBandStretcher.h
+++ b/rubberband/RubberBandStretcher.h
@@ -30,7 +30,9 @@
 
 #undef RUBBERBAND_DLLEXPORT
 #ifdef _MSC_VER
+#ifndef RUBBERBAND_STATIC
 #define RUBBERBAND_DLLEXPORT __declspec(dllexport)
+#endif
 #else
 #define RUBBERBAND_DLLEXPORT
 #endif
diff --git a/rubberband/rubberband-c.h b/rubberband/rubberband-c.h
index 73d1216b..39674824 100644
--- a/rubberband/rubberband-c.h
+++ b/rubberband/rubberband-c.h
@@ -35,7 +35,9 @@ extern "C" {
 
 #undef RB_EXTERN
 #ifdef _MSC_VER
+#ifndef RUBBERBAND_STATIC
 #define RB_EXTERN extern __declspec(dllexport)
+#endif
 #else
 #define RB_EXTERN extern
 #endif
diff --git a/src/common/Resampler.cpp b/src/common/Resampler.cpp
index 1b213c53..4149c6a5 100644
--- a/src/common/Resampler.cpp
+++ b/src/common/Resampler.cpp
@@ -192,7 +192,7 @@ D_IPP::D_IPP(Resampler::Quality /* quality */,
     //    elements with indices greater than m_time + length for the
     //    right filter wing for the last element.
     
-    m_history = int(m_window * 0.5 * max(1.0, 1.0 / m_factor)) + 1;
+    m_history = int(m_window * 0.5 * std::max(1.0, 1.0 / m_factor)) + 1;
 
     m_state = new IppsResamplingPolyphase_32f *[m_channels];
 
@@ -305,7 +305,7 @@ D_IPP::resample(float *const BQ_R__ *const BQ_R__ out,
 {
     if (ratio > m_factor) {
         m_factor = ratio;
-        m_history = int(m_window * 0.5 * max(1.0, 1.0 / m_factor)) + 1;
+        m_history = int(m_window * 0.5 * std::max(1.0, 1.0 / m_factor)) + 1;
     }
 
     if (m_debugLevel > 2) {
@@ -348,7 +348,7 @@ D_IPP::resampleInterleaved(float *const BQ_R__ out,
 {
     if (ratio > m_factor) {
         m_factor = ratio;
-        m_history = int(m_window * 0.5 * max(1.0, 1.0 / m_factor)) + 1;
+        m_history = int(m_window * 0.5 * std::max(1.0, 1.0 / m_factor)) + 1;
     }
 
     if (m_debugLevel > 2) {
diff --git a/src/common/sysutils.cpp b/src/common/sysutils.cpp
index 49e29146..c5779b6b 100644
--- a/src/common/sysutils.cpp
+++ b/src/common/sysutils.cpp
@@ -152,7 +152,7 @@ system_is_multiprocessor()
 
 #ifdef _WIN32
 
-void gettimeofday(struct timeval *tv, void *tz)
+void gettimeofday(struct timeval *tv, void * /* tz */)
 {
     union { 
 	long long ns100;  
diff --git a/src/common/sysutils.h b/src/common/sysutils.h
index 88b905e4..53a771e6 100644
--- a/src/common/sysutils.h
+++ b/src/common/sysutils.h
@@ -45,6 +45,19 @@
 #  define R__
 #endif
 
+#ifndef RUBBERBAND_ENABLE_WARNINGS
+#if defined(_MSC_VER)
+#pragma warning(disable:4127; disable:4244; disable:4267)
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wconversion"
+#elif defined(__clang__)
+#pragma clang diagnostic ignored "-Wsign-conversion"
+#pragma clang diagnostic ignored "-Wfloat-conversion"
+#pragma clang diagnostic ignored "-Wimplicit-float-conversion"
+#pragma clang diagnostic ignored "-Wshorten-64-to-32"
+#endif
+#endif
+
 #ifdef __clang__
 #  define RTENTRY__ __attribute__((annotate("realtime")))
 #else
diff --git a/src/ext/getopt/getopt.c b/src/ext/getopt/getopt.c
index ce9abb3c..1ca7d773 100644
--- a/src/ext/getopt/getopt.c
+++ b/src/ext/getopt/getopt.c
@@ -35,6 +35,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef _MSC_VER
+#pragma warning (disable: 4131; disable: 4706)
+#endif
+
 int	opterr = 1,		/* if error message should be printed */
 	optind = 1,		/* index into parent argv vector */
 	optopt,			/* character checked for validity */
diff --git a/src/ext/getopt/getopt_long.c b/src/ext/getopt/getopt_long.c
index 1f92449a..f5cd2443 100644
--- a/src/ext/getopt/getopt_long.c
+++ b/src/ext/getopt/getopt_long.c
@@ -54,6 +54,10 @@
 #include <stdio.h>
 #include <stdarg.h>
 
+#ifdef _MSC_VER
+#pragma warning (disable: 4131; disable: 4996)
+#endif
+
 GETOPT_API extern char opterrmsg[128];
 char opterrmsg[128]; /* last error message is stored here */
 
diff --git a/src/faster/StretcherChannelData.cpp b/src/faster/StretcherChannelData.cpp
index 640ddb4a..8cbe4231 100644
--- a/src/faster/StretcherChannelData.cpp
+++ b/src/faster/StretcherChannelData.cpp
@@ -89,8 +89,7 @@ R2Stretcher::ChannelData::construct(const std::set<size_t> &sizes,
 
     unityResetLow = 16000.f;
 
-    for (std::set<size_t>::const_iterator i = sizes.begin();
-         i != sizes.end(); ++i) {
+    for (i = sizes.begin(); i != sizes.end(); ++i) {
         ffts[*i] = new FFT(*i);
         if (sizeof(process_t) == sizeof(double)) {
             ffts[*i]->initDouble();
diff --git a/src/finer/R3Stretcher.cpp b/src/finer/R3Stretcher.cpp
index ea1b2c83..81524b95 100644
--- a/src/finer/R3Stretcher.cpp
+++ b/src/finer/R3Stretcher.cpp
@@ -1006,7 +1006,7 @@ R3Stretcher::consume(bool final)
 
     while (true) {
 
-        Profiler profiler("R3Stretcher::consume/loop");
+        Profiler profiler2("R3Stretcher::consume/loop");
 
         int readSpace = cd0->inbuf->getReadSpace();
         m_log.log(2, "consume: read space", readSpace);
diff --git a/src/jni/RubberBandStretcherJNI.cpp b/src/jni/RubberBandStretcherJNI.cpp
index e1e6cf95..9cac5fb5 100644
--- a/src/jni/RubberBandStretcherJNI.cpp
+++ b/src/jni/RubberBandStretcherJNI.cpp
@@ -87,6 +87,22 @@ JNIEXPORT jdouble JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_
 JNIEXPORT jdouble JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_getPitchScale
   (JNIEnv *, jobject);
 
+/*
+ * Class:     com_breakfastquay_rubberband_RubberBandStretcher
+ * Method:    getPreferredStartPad
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_getPreferredStartPad
+  (JNIEnv *, jobject);
+
+/*
+ * Class:     com_breakfastquay_rubberband_RubberBandStretcher
+ * Method:    getStartDelay
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_getStartDelay
+  (JNIEnv *, jobject);
+
 /*
  * Class:     com_breakfastquay_rubberband_RubberBandStretcher
  * Method:    getLatency
@@ -151,6 +167,14 @@ JNIEXPORT void JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_set
 JNIEXPORT void JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_setMaxProcessSize
   (JNIEnv *, jobject, jint);
 
+/*
+ * Class:     com_breakfastquay_rubberband_RubberBandStretcher
+ * Method:    getProcessSizeLimit
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_getProcessSizeLimit
+  (JNIEnv *, jobject);
+
 /*
  * Class:     com_breakfastquay_rubberband_RubberBandStretcher
  * Method:    getSamplesRequired
@@ -159,6 +183,14 @@ JNIEXPORT void JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_set
 JNIEXPORT jint JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_getSamplesRequired
   (JNIEnv *, jobject);
 
+/*
+ * Class:     com_breakfastquay_rubberband_RubberBandStretcher
+ * Method:    setKeyFrameMap
+ * Signature: ([J[J)V
+ */
+JNIEXPORT void JNICALL Java_com_breakfastquay_rubberband_RubberBandStretcher_setKeyFrameMap
+  (JNIEnv *, jobject, jlongArray, jlongArray);
+
 /*
  * Class:     com_breakfastquay_rubberband_RubberBandStretcher
  * Method:    study
@@ -269,6 +301,18 @@ Java_com_breakfastquay_rubberband_RubberBandStretcher_getPitchScale(JNIEnv *env,
     return getStretcher(env, obj)->getPitchScale();
 }
 
+JNIEXPORT jint JNICALL
+Java_com_breakfastquay_rubberband_RubberBandStretcher_getPreferredStartPad(JNIEnv *env, jobject obj)
+{
+    return getStretcher(env, obj)->getPreferredStartPad();
+}
+
+JNIEXPORT jint JNICALL
+Java_com_breakfastquay_rubberband_RubberBandStretcher_getStartDelay(JNIEnv *env, jobject obj)
+{
+    return getStretcher(env, obj)->getStartDelay();
+}
+
 JNIEXPORT jint JNICALL
 Java_com_breakfastquay_rubberband_RubberBandStretcher_getLatency(JNIEnv *env, jobject obj)
 {
@@ -317,12 +361,34 @@ Java_com_breakfastquay_rubberband_RubberBandStretcher_setMaxProcessSize(JNIEnv *
     getStretcher(env, obj)->setMaxProcessSize(size);
 }
 
+JNIEXPORT jint JNICALL
+Java_com_breakfastquay_rubberband_RubberBandStretcher_getProcessSizeLimit(JNIEnv *env, jobject obj)
+{
+    return getStretcher(env, obj)->getProcessSizeLimit();
+}
+
 JNIEXPORT jint JNICALL
 Java_com_breakfastquay_rubberband_RubberBandStretcher_getSamplesRequired(JNIEnv *env, jobject obj)
 {
     return getStretcher(env, obj)->getSamplesRequired();
 }
 
+JNIEXPORT void JNICALL
+Java_com_breakfastquay_rubberband_RubberBandStretcher_setKeyFrameMap(JNIEnv *env, jobject obj, jlongArray from, jlongArray to)
+{
+    std::map<size_t, size_t> m;
+    int flen = env->GetArrayLength(from);
+    int tlen = env->GetArrayLength(to);
+    jlong *farr = env->GetLongArrayElements(from, 0);
+    jlong *tarr = env->GetLongArrayElements(to, 0);
+    for (int i = 0; i < flen && i < tlen; ++i) {
+        m[farr[i]] = tarr[i];
+    }
+    env->ReleaseLongArrayElements(from, farr, 0);
+    env->ReleaseLongArrayElements(to, tarr, 0);
+    getStretcher(env, obj)->setKeyFrameMap(m);
+}
+
 JNIEXPORT void JNICALL
 Java_com_breakfastquay_rubberband_RubberBandStretcher_study(JNIEnv *env, jobject obj, jobjectArray data, jint offset, jint n, jboolean final)
 {
diff --git a/src/rubberband-c.cpp b/src/rubberband-c.cpp
index e7fd1543..c00ad6c2 100644
--- a/src/rubberband-c.cpp
+++ b/src/rubberband-c.cpp
@@ -90,17 +90,17 @@ double rubberband_get_formant_scale(const RubberBandState state)
 
 unsigned int rubberband_get_preferred_start_pad(const RubberBandState state) 
 {
-    return state->m_s->getPreferredStartPad();
+    return (unsigned int)state->m_s->getPreferredStartPad();
 }
 
 unsigned int rubberband_get_start_delay(const RubberBandState state) 
 {
-    return state->m_s->getStartDelay();
+    return (unsigned int)state->m_s->getStartDelay();
 }
 
 unsigned int rubberband_get_latency(const RubberBandState state) 
 {
-    return state->m_s->getLatency();
+    return (unsigned int)state->m_s->getLatency();
 }
 
 void rubberband_set_transients_option(RubberBandState state, RubberBandOptions options)
@@ -135,7 +135,7 @@ void rubberband_set_expected_input_duration(RubberBandState state, unsigned int
 
 unsigned int rubberband_get_samples_required(const RubberBandState state)
 {
-    return state->m_s->getSamplesRequired();
+    return (unsigned int)state->m_s->getSamplesRequired();
 }
 
 void rubberband_set_max_process_size(RubberBandState state, unsigned int samples)
@@ -145,7 +145,7 @@ void rubberband_set_max_process_size(RubberBandState state, unsigned int samples
 
 unsigned int rubberband_get_process_size_limit(RubberBandState state)
 {
-    return state->m_s->getProcessSizeLimit();
+    return (unsigned int)state->m_s->getProcessSizeLimit();
 }
 
 void rubberband_set_key_frame_map(RubberBandState state, unsigned int keyframecount, unsigned int *from, unsigned int *to)
@@ -174,12 +174,12 @@ int rubberband_available(const RubberBandState state)
 
 unsigned int rubberband_retrieve(const RubberBandState state, float *const *output, unsigned int samples)
 {
-    return state->m_s->retrieve(output, samples);
+    return (unsigned int)state->m_s->retrieve(output, samples);
 }
 
 unsigned int rubberband_get_channel_count(const RubberBandState state)
 {
-    return state->m_s->getChannelCount();
+    return (unsigned int)state->m_s->getChannelCount();
 }
 
 void rubberband_calculate_stretch(RubberBandState state)