ShaYmez/MMDVM_CM
1
0
Fork 0
mirror of https://github.com/ShaYmez/MMDVM_CM.git synced 2026-06-20 14:48:43 -04:00
Code Issues Projects Releases Wiki Activity

Add open source ambe encoder for much better audio quality from M17 -> DMR

Browse Source
This commit is contained in:
Doug McLain
2020-11-30 21:24:57 -05:00
parent 4113e98e5d
commit f88e58ad01
33 changed files with 8325 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files
M172DMR/MBEVocoder.cpp
+8 -1
View File
@@ -21,13 +21,15 @@
#include <md380_vocoder.h>
#include "MBEVocoder.h"
const uint8_t BIT_MASK_TABLE8[] = { 0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U };
#define WRITE_BIT8(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE8[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE8[(i)&7])
#define READ_BIT8(p,i) (p[(i)>>3] & BIT_MASK_TABLE8[(i)&7])
MBEVocoder::MBEVocoder(void)
{
m_mbeenc = new MBEEncoder();
m_mbeenc->set_dmr_mode();
m_mbeenc->set_gain_adjust(2.5);
}
void MBEVocoder::decode_2450(int16_t *pcm, uint8_t *ambe49)
@@ -39,3 +41,8 @@ void MBEVocoder::encode_2450(int16_t *pcm, uint8_t *ambe49)
{
md380_encode(ambe49, pcm);
}
void MBEVocoder::encode_dmr(int16_t *pcm, uint8_t *ambe)
{
m_mbeenc->encode(pcm, ambe);
}