Add AudioAnalyzeRMS_F32 and control_sgtl5000_32bit

src/AudioAnalyzeRMS_F32.cpp

@@ -0,0 +1,82 @@
+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, [email protected]
+ * Modified to floating point by Oyvind Mjanger.  
+ *
+ * Development of this audio library was funded by PJRC.COM, LLC by sales of
+ * Teensy and Audio Adaptor boards.  Please support PJRC's efforts to develop
+ * open source software by purchasing Teensy or other PJRC products.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice, development funding notice, and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include "AudioAnalyzeRMS_F32.h"
+#include "utility/dspinst.h"
+
+void AudioAnalyzeRMS_F32::update(void)
+{
+	audio_block_f32_t *block = receiveReadOnly_f32();
+	if (!block) {
+		count++;
+		return;
+	}
+#if defined(KINETISK)
+	float32_t *p = (float32_t *)(block->data);
+	float32_t *end = p + AUDIO_BLOCK_SAMPLES;
+	float64_t sum = accum;
+	float32_t in;                                  // Temporary variable to store input value 
+
+	do {
+		in = *p++;
+		sum += in * in;
+		in = *p++;
+		sum += in * in;
+		in = *p++;
+		sum += in * in;
+		in = *p++;
+		sum += in * in;
+	} while (p < end);
+	accum = sum;
+	count++;
+#else
+	float32_t *p = block->data;
+	float32_t *end = p + AUDIO_BLOCK_SAMPLES;
+	float64_t sum = accum;
+	do {
+		float32_t n = *p++;
+		sum += n * n;
+	} while (p < end);
+	accum = sum;
+	count++;
+#endif
+	release(block);
+}
+
+float AudioAnalyzeRMS_F32::read(void)
+{
+	__disable_irq();
+	float64_t sum = accum;
+	accum = 0;
+	float32_t num = count;
+	count = 0;
+	__enable_irq();
+	float32_t meansq = sum / (num * AUDIO_BLOCK_SAMPLES);
+	return sqrtf(meansq);
+}
+

src/AudioAnalyzeRMS_F32.h

@@ -0,0 +1,56 @@
+/* Audio Library for Teensy 3.X
+ * Copyright (c) 2014, Paul Stoffregen, [email protected]
+ * Modified to floating point by Oyvind Mjanger.  
+ *
+ * Development of this audio library was funded by PJRC.COM, LLC by sales of
+ * Teensy and Audio Adaptor boards.  Please support PJRC's efforts to develop
+ * open source software by purchasing Teensy or other PJRC products.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice, development funding notice, and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef analyze_rms_F32_h_
+#define analyze_rms_F32_h_
+
+#include "Arduino.h"
+#include "AudioStream_F32.h"
+#include <arm_math.h> //ARM DSP extensions.  for speed!
+
+
+class AudioAnalyzeRMS_F32 : public AudioStream_F32
+{
+private:
+	audio_block_f32_t *inputQueueArray_F32[1];
+	float64_t accum;
+	float32_t count;
+
+public:
+	AudioAnalyzeRMS_F32(void) : AudioStream_F32(1, inputQueueArray_F32) {
+		accum = 0;
+		count = 0;
+	}
+	bool available(void) {
+		return count > 0;
+	}
+	float read(void);
+	virtual void update(void);
+};
+
+#endif
+

src/Tympan_Library.h

@@ -2,6 +2,8 @@
 #include "AudioStream_F32.h"
 #include "BTNRH_WDRC_Types.h"
 #include "control_tlv320aic3206.h"
+#include "control_sgtl5000_32bit.h"
+#include "AudioAnalyzeRMS_F32.h"
 #include "AudioCalcEnvelope_F32.h"
 #include "AudioCalcGainWDRC_F32.h"
 #include "AudioCalcLevel_F32.h"