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feat: APP到锁声音调优

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“DaisyWu” 2025-02-25 14:54:27 +08:00
parent c6dce9eb00
commit 7a7e8aa408
1 changed files with 11 additions and 11 deletions
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22
lib/talk/starChart/views/talkView/talk_view_logic.dart
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@ -676,8 +676,8 @@ class TalkViewLogic extends BaseGetXController {
// } // }
List<int> adjustVolume(List<int> pcmList, double volume) { List<int> adjustVolume(List<int> pcmList, double volume) {
final List<int> adjustedPcmList = []; final List<int> adjustedPcmList = <int>[];
for (int pcmVal in pcmList) { for (final int pcmVal in pcmList) {
// 调整音量 // 调整音量
int adjustedPcmVal = (pcmVal * volume).round(); int adjustedPcmVal = (pcmVal * volume).round();
@ -698,8 +698,8 @@ class TalkViewLogic extends BaseGetXController {
final List<int> adjustedPcmList = adjustVolume(pcmList, 5.0); final List<int> adjustedPcmList = adjustVolume(pcmList, 5.0);
// 再进行 A-law 编码 // 再进行 A-law 编码
final List<int> aLawList = []; final List<int> aLawList = <int>[];
for (int pcmVal in adjustedPcmList) { for (final int pcmVal in adjustedPcmList) {
final int aLawVal = linearToALaw(pcmVal); final int aLawVal = linearToALaw(pcmVal);
aLawList.add(aLawVal); aLawList.add(aLawVal);
} }
@ -707,8 +707,8 @@ class TalkViewLogic extends BaseGetXController {
} }
int linearToALaw(int pcmVal) { int linearToALaw(int pcmVal) {
const int ALAW_MAX = 0x7FFF; // 32767 const int alawMax = 0x7FFF; // 32767
const int ALAW_BIAS = 0x84; // 132 const int alawBias = 0x84; // 132
int mask; int mask;
int seg; int seg;
@ -723,9 +723,9 @@ class TalkViewLogic extends BaseGetXController {
} }
// Add bias and clamp to ALAW_MAX // Add bias and clamp to ALAW_MAX
pcmVal += ALAW_BIAS; pcmVal += alawBias;
if (pcmVal > ALAW_MAX) { if (pcmVal > alawMax) {
pcmVal = ALAW_MAX; pcmVal = alawMax;
} }
// Determine segment // Determine segment
@ -735,7 +735,7 @@ class TalkViewLogic extends BaseGetXController {
if (seg >= 8) { if (seg >= 8) {
aLawVal = 0x7F ^ mask; // Clamp to maximum value aLawVal = 0x7F ^ mask; // Clamp to maximum value
} else { } else {
int quantized = (pcmVal >> (seg + 3)) & 0xF; final int quantized = (pcmVal >> (seg + 3)) & 0xF;
aLawVal = (seg << 4) | quantized; aLawVal = (seg << 4) | quantized;
aLawVal ^= 0xD5; // XOR with 0xD5 to match standard A-law table aLawVal ^= 0xD5; // XOR with 0xD5 to match standard A-law table
} }
@ -744,7 +744,7 @@ class TalkViewLogic extends BaseGetXController {
} }
int search(int val) { int search(int val) {
final List<int> table = [ final List<int> table = <int>[
0xFF, // Segment 0 0xFF, // Segment 0
0x1FF, // Segment 1 0x1FF, // Segment 1
0x3FF, // Segment 2 0x3FF, // Segment 2