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tns: Quantize on 16 bits the RC coeffs, required for LC3 Plus HR

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This commit is contained in:
Antoine Soulier
2024-01-23 14:09:16 -08:00
parent 5f70c731f5
commit d9973b605b
3 changed files with 22 additions and 9 deletions
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tables/mktables.py
+12 -2
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@@ -141,9 +141,19 @@ def tns_lag_window():
def tns_quantization_table():
print('\n--- tns quantization table ---')
print_table(np.sin((np.arange(8) + 0.5) * (np.pi / 17)))
print_table(np.sin((np.arange(8)) * (np.pi / 17)))
xe = np.sin((np.arange(8) + 0.5) * (np.pi / 17))
xe = np.rint(xe * 2**15).astype(np.int16)
xd = np.sin(np.arange(9) * (np.pi / 17))
xd = np.rint(xd * 2**15).astype(np.int16)
for x in (xe, xd):
print()
for (i, xi) in enumerate(x):
print('0x{:04x}p-15,'.format(xi), end = '\n' if i%4 == 4-1 else ' ')
if len(x) % 4:
print()
def quant_iq_table():