| 86 | } |
| 87 | |
| 88 | size SignalConditioner::filterSpikes(span<const i16> pcm, vector<bool>& validMask) { |
| 89 | const size count = pcm.size(); |
| 90 | validMask.clear(); |
| 91 | validMask.reserve(count); |
| 92 | |
| 93 | size validCount = 0; |
| 94 | const i16 threshold = mConfig.spikeThreshold; |
| 95 | |
| 96 | for (size i = 0; i < count; ++i) { |
| 97 | const i16 sample = pcm[i]; |
| 98 | const bool isValid = (sample > -threshold) && (sample < threshold); |
| 99 | validMask.push_back(isValid); |
| 100 | if (isValid) { |
| 101 | validCount++; |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | // Update spike rejection count |
| 106 | const size spikesInSample = count - validCount; |
| 107 | mStats.spikesRejected += spikesInSample; |
| 108 | |
| 109 | return validCount; |
| 110 | } |
| 111 | |
| 112 | i32 SignalConditioner::calculateDCOffset(span<const i16> pcm, const vector<bool>& validMask) { |
| 113 | const size count = pcm.size(); |