diff options
Diffstat (limited to 'arm-wt-22k/lib_src/eas_wtsynth.h')
-rw-r--r-- | arm-wt-22k/lib_src/eas_wtsynth.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arm-wt-22k/lib_src/eas_wtsynth.h b/arm-wt-22k/lib_src/eas_wtsynth.h new file mode 100644 index 0000000..106ab40 --- /dev/null +++ b/arm-wt-22k/lib_src/eas_wtsynth.h @@ -0,0 +1,66 @@ +/*----------------------------------------------------------------------------
+ *
+ * File:
+ * eas_wtsynth.h
+ *
+ * Contents and purpose:
+ * This file defines the interface for synthesizer engine
+ *
+ * Copyright Sonic Network Inc. 2004
+ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *
+ *----------------------------------------------------------------------------
+ * Revision Control:
+ * $Revision: 82 $
+ * $Date: 2006-07-10 11:45:19 -0700 (Mon, 10 Jul 2006) $
+ *----------------------------------------------------------------------------
+*/
+
+#ifndef _EAS_WTSYNTH_H
+#define _EAS_WTSYNTH_H
+
+#include "eas_sndlib.h"
+#include "eas_wtengine.h"
+
+/* adjust the filter cutoff frequency to the sample rate */
+#if defined (_SAMPLE_RATE_8000)
+#define FILTER_CUTOFF_FREQ_ADJUST 0
+#elif defined (_SAMPLE_RATE_16000)
+#define FILTER_CUTOFF_FREQ_ADJUST 1200
+#elif defined (_SAMPLE_RATE_20000)
+#define FILTER_CUTOFF_FREQ_ADJUST 1586
+#elif defined (_SAMPLE_RATE_22050)
+#define FILTER_CUTOFF_FREQ_ADJUST 1756
+#elif defined (_SAMPLE_RATE_24000)
+#define FILTER_CUTOFF_FREQ_ADJUST 1902
+#elif defined (_SAMPLE_RATE_32000)
+#define FILTER_CUTOFF_FREQ_ADJUST 2400
+#elif defined (_SAMPLE_RATE_44100)
+#define FILTER_CUTOFF_FREQ_ADJUST 2956
+#elif defined (_SAMPLE_RATE_48000)
+#define FILTER_CUTOFF_FREQ_ADJUST 3102
+#else
+#error "_SAMPLE_RATE_XXXXX must be defined to valid rate"
+#endif
+
+/* function prototypes */
+void WT_UpdateLFO (S_LFO_CONTROL *pLFO, EAS_I16 phaseInc);
+
+#if defined(_FILTER_ENABLED) || defined(DLS_SYNTHESIZER)
+void WT_SetFilterCoeffs (S_WT_INT_FRAME *pIntFrame, EAS_I32 cutoff, EAS_I32 resonance);
+#endif
+
+#endif
+
+
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