init

lib_audio_dsp/test/reverb/src/reverb_room.c

@@ -0,0 +1,69 @@
+// Copyright 2024-2025 XMOS LIMITED.
+// This Software is subject to the terms of the XMOS Public Licence: Version 1.
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include "dsp/adsp.h"
+
+#define FS 48000
+#define MAX_ROOM 1.0
+#define PD_MS 10
+#define PD_SAMPS (uint32_t)(PD_MS * FS / 1000)
+
+FILE *_fopen(char *fname, char *mode)
+{
+    FILE *fp = fopen(fname, mode);
+    if (fp == NULL)
+    {
+        printf("Error opening a file\n");
+        exit(1);
+    }
+    return fp;
+}
+
+int main()
+{
+    float const fs = FS;
+    float const max_room_size = MAX_ROOM;
+    float const room_size = 1.0;
+
+    FILE *in = _fopen("../rv_sig_48k.bin", "rb");
+    FILE *out = _fopen("rv_sig_out.bin", "wb");
+    FILE *info = _fopen("rv_info.bin", "rb");
+
+    fseek(in, 0, SEEK_END);
+    int in_len = ftell(in) / sizeof(int32_t);
+    fseek(in, 0, SEEK_SET);
+
+    int32_t pregain, wet, dry, feedback, damping;
+
+    fread(&pregain, sizeof(int32_t), 1, info);
+    fread(&wet, sizeof(int32_t), 1, info);
+    fread(&dry, sizeof(int32_t), 1, info);
+    fread(&feedback, sizeof(int32_t), 1, info);
+    fread(&damping, sizeof(int32_t), 1, info);
+    fclose(info);
+
+    uint8_t reverb_heap[ADSP_RVR_HEAP_SZ(FS, MAX_ROOM, PD_SAMPS)] = {0};
+    reverb_room_t rv;
+    rv.pre_gain = pregain;
+    rv.wet_gain = wet;
+    rv.dry_gain = dry;
+
+    adsp_reverb_room_init_filters(&rv, fs, max_room_size, PD_SAMPS, PD_SAMPS, feedback, damping, reverb_heap);
+    adsp_reverb_room_set_room_size(&rv, room_size);
+
+    for (int i = 0; i < in_len; i++)
+    {
+        int32_t samp = 0, samp_out = 0;
+        fread(&samp, sizeof(int32_t), 1, in);
+        samp_out = adsp_reverb_room(&rv, samp);
+        fwrite(&samp_out, sizeof(int32_t), 1, out);
+    }
+
+    fclose(in);
+    fclose(out);
+
+    return 0;
+}