create_audio
if (create_funcs->create_audio) {
struct audio *aud = create_funcs->create_audio(ctx, i);
.create_audio = create_audio,
.create_audio = create_audio,
.create_audio = create_audio,
.create_audio = create_audio,
.create_audio = create_audio,
.create_audio = create_audio,
.create_audio = NULL,
struct audio *(*create_audio)(