* various functions useful in audio signal processing
*/
-#ifndef _AUBIO__MUSICUTILS_H
-#define _AUBIO__MUSICUTILS_H
+#ifndef AUBIO_MUSICUTILS_H
+#define AUBIO_MUSICUTILS_H
#ifdef __cplusplus
extern "C" {
\return level in dB SPL if level >= threshold, 1. otherwise
*/
-smpl_t aubio_level_detection (fvec_t * v, smpl_t threshold);
+smpl_t aubio_level_detection (const fvec_t * v, smpl_t threshold);
#ifdef __cplusplus
}
#endif
-#endif /* _AUBIO__MUSICUTILS_H */
+#endif /* AUBIO_MUSICUTILS_H */