ResampleStream

Author: pschatzmann

examples/sandbox/examples-sdr/generator-am_sender-audiokit/generator-am_sender-audiokit.ino

@@ -40,12 +40,15 @@ void setup() {
     audio_data.resize(num_samples);
     modulated_data.resize(num_samples);
 
+    // define resample
+    auto rcfg = resample.defaultConfig();
     // define resample we resample the audio data from 44100 to 13M
-    resample.begin(sample_rate, sample_rate_carrier); 
+    rcfg.step_size = resample.getStepSize(sample_rate, sample_rate_carrier);
+    rcfg.channels = channels;
+    resample.begin(rcfg); 
 
     // setup test tone
     auto cfgs = sound.defaultConfig();
-    cfgs.sample_rate = sample_rate;
     cfgs.channels = channels;
     sound.begin(cfgs);
 

examples/tests/test-resample-in/test-resample-in.ino

@@ -16,13 +16,13 @@ void setup(void) {
   AudioLogger::instance().begin(Serial, AudioLogger::Warning);
 
   // define resample
-  int sample_rate_from = sample_rate; 
-  int to_sample_rate = 22050; 
-  resample.begin(sample_rate_from, to_sample_rate); 
+  auto rcfg = resample.defaultConfig();
+  rcfg.step_size = 0.5
+  rcfg.channels = channels;
+  resample.begin(rcfg); 
 
   // Define CSV Output
   auto config = out.defaultConfig();
-  config.sample_rate = sample_rate; 
   config.channels = channels;
   out.begin(config);
 

examples/tests/test-resample-out/test-resample-out.ino

@@ -16,9 +16,10 @@ void setup(void) {
   AudioLogger::instance().begin(Serial, AudioLogger::Warning);
 
   // define resample
-  int sample_rate_from = sample_rate; 
-  int sample_rate_to = 22050; 
-  resample.begin(sample_rate_from, sample_rate_to); 
+  auto rcfg = resample.defaultConfig();
+  rcfg.step_size = 0.5
+  rcfg.channels = channels;
+  resample.begin(rcfg); 
 
   // Define CSV Output
   auto config = out.defaultConfig();

src/AudioTools/Resample.h

@@ -22,7 +22,7 @@ struct ResampleConfig : public AudioBaseInfo {
  * @tparam T 
  */
 template<typename T>
-class ResampleStream : public AudioStream {
+class ResampleStream : public AudioStreamX {
   public:
     /// Support for resampling via write.
     ResampleStream(Print &out, int channelCount=2){