| /liblc3-3.5.0-3.4.0/src/ |
| D | tns.c | 98 for (int k = 0; k < 9; k++) in compute_lpc_coeffs() local
99 c[k][s] = dot(xs, xs + k, (xe - xs) - k); in compute_lpc_coeffs()
105 for (int k = 1; k < 9; k++) in compute_lpc_coeffs() local
106 r[f][k] = e0 == 0 || e1 == 0 || e2 == 0 ? 0 : in compute_lpc_coeffs()
107 (c[k][0]/e0 + c[k][1]/e1 + c[k][2]/e2) * lag_window[k]; in compute_lpc_coeffs()
119 for (int k = 1; k < 9; ) { in compute_lpc_coeffs() local
121 rc = -r[f][k]; in compute_lpc_coeffs()
122 for (int i = 1; i < k; i++) in compute_lpc_coeffs()
123 rc -= a0[i] * r[f][k-i]; in compute_lpc_coeffs()
128 for (int i = 1; i < k; i++) in compute_lpc_coeffs()
[all …]
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| D | spec.c | 323 int k = 0; in compute_nbits() local
329 nbits += lc3_spectrum_bits[lut[k++]][16] - 2*2048; in compute_nbits()
333 for (m >>= lsb_mode; m; m >>= 1, k++) in compute_nbits()
334 nbits += lc3_spectrum_bits[lut[LC3_MIN(k, 3)]][16]; in compute_nbits()
336 nbits += k * 2*2048; in compute_nbits()
337 a >>= k; in compute_nbits()
338 b >>= k; in compute_nbits()
340 k = LC3_MIN(k, 3); in compute_nbits()
345 nbits += lc3_spectrum_bits[lut[k]][a + 4*b]; in compute_nbits()
354 state = (state << 4) + (k > 1 ? 12 + k : 1 + (a + b) * (k + 1)); in compute_nbits()
[all …]
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| D | ltpf.c | 195 for (int k = 0; k < w; k += 10) { in resample_x64k_12k8() local
239 for (int k = 0; k < w; k += 15) { in resample_x192k_12k8() local
720 for (int k = 0; k <= j; k++) in synthesize_template() local
721 u[j-k] -= yi * c[k]; in synthesize_template()
723 for (int k = 0; k <= j; k++) in synthesize_template() local
724 u[j-k] += xi * c[w+k]; in synthesize_template()
737 for (int k = 0; k < w; k++) in synthesize_template() local
738 u[(j+(w-1)-k)%w] -= yi * c[k]; in synthesize_template()
740 for (int k = 0; k < w; k++) in synthesize_template() local
741 u[(j+(w-1)-k)%w] += xi * c[w+k]; in synthesize_template()
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| D | ltpf_arm.h | 61 for (int k = 0; k < w; k += 5) { in arm_resample_x64k_12k8() local
92 for (int k = 0; k < w; k += 15) { in arm_resample_x192k_12k8() local
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| D | sns.c | 397 for (int k = start; k < end; k++) { in add_pulse() local
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| /liblc3-3.5.0-3.4.0/tables/ |
| D | mktables.py | 106 for (i, k) in enumerate(kv):
107 print('{{ {:14.7e}, {:14.7e} }},'.format(np.cos(k), np.sin(k)),
115 for k in kv:
118 np.cos(k), np.sin(k), np.cos(2*k), np.sin(2*k)))
128 for (i, k) in enumerate(kv):
129 print('{{ {:14.7e}, {:14.7e} }},'.format(np.cos(k), np.sin(k)),
179 k = 64 if r & (r-1) else 192
181 p = (192 // k) * (k // sr)
191 for i in range(0, len(h), 192 // k):
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| D | fastmath.py | 97 k = 10 * np.log10(2);
100 a = k * np.log2(np.ldexp(32 + i , -5)) - (i // 16) * (k/2);
101 b = k * np.log2(np.ldexp(32 + i+1, -5)) - (i // 16) * (k/2);
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| /liblc3-3.5.0-3.4.0/test/ |
| D | tns.py | 89 nbits_coef = sum([ T.TNS_COEF_BITS[k][rc[k]]
90 for k in range(rc_order) ])
112 for k in range(len(r) if sum(e) > 0 else 0):
113 c = [ np.dot(x[S[s]:S[s+1]-k], x[S[s]+k:S[s+1]])
116 r[k] = np.sum( np.array(c) / np.array(e) )
125 for k in range(1, len(a)):
127 rc = -sum(a[:k] * r[k:0:-1]) / err
129 a[1:k] += rc * a[k-1:0:-1]
130 a[k] = rc
146 for k in range(8, 0, -1):
[all …]
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| D | ltpf.py | 71 k = np.arange(-120, 120 + p, p) - f
72 u[2+i] = p * np.dot( x[e:e+w+1], np.take(h, k) )
165 return [ np.dot(x[:n], np.take(x, np.arange(n) - k)) \
166 for k in range(k0, 1+k1) ]
168 def norm_corr(self, x, n, k): argument
171 v = np.take(x, np.arange(n) - k)
241 k = np.arange(-2, 3)
242 u = [ np.dot( np.take(x, i-k), np.take(h, 4*k) ) \
244 v = [ np.dot( np.take(x, i-k), np.take(h, 4*k-f) ) \
376 for k in range(n0):
[all …]
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| D | bitstream.py | 65 for k in range(nbits):
66 val |= self.read_bit() << k
131 for k in range(nbits):
231 for k in range(bits):
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| D | spec.py | 52 i_nf = [ np.all(xq[k-nf_width:min(bw_stop, k+nf_width+1)] == 0)
53 for k in range(nf_start, bw_stop) ]
79 e = [ np.sum(x[4*k:4*(k+1)] ** 2) for k in range(len(x) // 4) ]
418 for k in k_nf:
420 x[k] = [ -l_nf, l_nf ][nf_seed < 0x8000]
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| D | sns.py | 199 for k in range(k0, K):
213 for k in range(sum(y2), K):
235 for k in range(sum(y1), K):
476 for k in data.keys():
477 ok = ok and data_c[k] == data[k]
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