#ifndef _LINUX_AUDIO_H
#define _LINUX_AUDIO_H 1
-int get_dsp_fd(int sample_rate, int fft_length, int overlap);
-void read_chunk(int fd, short *in, unsigned num_samples);
+#include <alsa/asoundlib.h>
+
+snd_pcm_t *get_dsp_handle(int sample_rate);
+void read_chunk(snd_pcm_t *handle, short *in, unsigned num_samples);
void write_sine(int dsp_fd, double freq, unsigned num_samples, unsigned sample_rate);
#endif /* !defined(_LINUX_AUDIO_H) */