From 53be0832689233eed27b0f3abd8dd6b377101381 Mon Sep 17 00:00:00 2001
From: Stephen D <webmaster@scd31.com>
Date: Sun, 28 Jan 2024 19:52:54 -0400
Subject: [PATCH] drop to 48khz
---
src/codec2/mod.rs | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/codec2/mod.rs b/src/codec2/mod.rs
index 23b75ad..e34f45f 100644
--- a/src/codec2/mod.rs
+++ b/src/codec2/mod.rs
@@ -2,13 +2,16 @@ use std::collections::VecDeque;
const MODE_M_MAX: usize = 4;
const M: i32 = 2;
+const N_SYM: i32 = 50;
#[link(name = "fsk", kind = "static")]
extern "C" {
- fn fsk_create(
+ fn fsk_create_hbr(
Fs: libc::c_int,
Rs: libc::c_int,
M: libc::c_int,
+ P: libc::c_int,
+ n_sym: libc::c_int,
f1_tx: libc::c_int,
tone_spacing: libc::c_int,
) -> *mut InternalFsk;
@@ -99,9 +102,9 @@ pub struct Fsk<I: Iterator<Item = Complex>> {
impl<I: Iterator<Item = Complex>> Fsk<I> {
pub fn new(iq_iter: I) -> Self {
- const FS: i32 = 9600 * 8;
+ const FS: i32 = 9600 * 5;
- let internal = unsafe { fsk_create(FS, 9600, M, -1, 0) };
+ let internal = unsafe { fsk_create_hbr(FS, 9600, M, 5, N_SYM, -1, 0) };
let fsk_lower = -FS / 2;
let fsk_upper = FS / 2;
--
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