diff options
| author | Jean-Marc Valin <jean-marc.valin@octasic.com> | 2011-01-28 01:01:59 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jean-marc.valin@octasic.com> | 2011-01-28 01:01:59 +0300 |
| commit | 49f76805ba9ee5672ba882a0152ca87bdbf0ed1e (patch) | |
| tree | cf5835bac8880e20ed4e49c133e7c0b4e456f7f2 | |
| parent | 097c5be8dce1456cacee3322b98c7ad1a428cdb6 (diff) | |
Adjusting pre-emphasis coefs to be exact in 16-bit precision
| -rw-r--r-- | libcelt/modes.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/libcelt/modes.c b/libcelt/modes.c index 25393b2..7c4cc8d 100644 --- a/libcelt/modes.c +++ b/libcelt/modes.c @@ -316,26 +316,26 @@ CELTMode *celt_mode_create(celt_int32 Fs, int frame_size, int *error) approximate that. */ if(Fs < 12000) /* 8 kHz */ { - mode->preemph[0] = QCONST16(.35f, 15); - mode->preemph[1] = -QCONST16(.18f, 15); - mode->preemph[2] = QCONST16(.272f, SIG_SHIFT); - mode->preemph[3] = QCONST16(3.6765f, 13); + mode->preemph[0] = QCONST16(0.3500061035f, 15); + mode->preemph[1] = -QCONST16(0.1799926758f, 15); + mode->preemph[2] = QCONST16(0.2719726562f, SIG_SHIFT); + mode->preemph[3] = QCONST16(3.6765136719f, 13); } else if(Fs < 24000) /* 16 kHz */ { - mode->preemph[0] = QCONST16(.6f, 15); - mode->preemph[1] = -QCONST16(.18f, 15); - mode->preemph[2] = QCONST16(.4425f, SIG_SHIFT); + mode->preemph[0] = QCONST16(0.6000061035f, 15); + mode->preemph[1] = -QCONST16(0.1799926758f, 15); + mode->preemph[2] = QCONST16(0.4425048828f, SIG_SHIFT); mode->preemph[3] = QCONST16(2.259887f, 13); } else if(Fs < 40000) /* 32 kHz */ { - mode->preemph[0] = QCONST16(.78f, 15); - mode->preemph[1] = -QCONST16(.1f, 15); + mode->preemph[0] = QCONST16(0.7799987793f, 15); + mode->preemph[1] = -QCONST16(0.1000061035f, 15); mode->preemph[2] = QCONST16(.75f, SIG_SHIFT); - mode->preemph[3] = QCONST16(1.33333333f, 13); + mode->preemph[3] = QCONST16(1.3333740234f, 13); } else /* 48 kHz */ { - mode->preemph[0] = QCONST16(.85f, 15); - mode->preemph[1] = QCONST16(.0f, 15); + mode->preemph[0] = QCONST16(0.8500061035f, 15); + mode->preemph[1] = QCONST16(0.0f, 15); mode->preemph[2] = QCONST16(1.f, SIG_SHIFT); mode->preemph[3] = QCONST16(1.f, 13); } |