removeDCOffset()

void fl::audio::SignalConditioner::removeDCOffset ( span< const i16 > pcm, i32 dcOffset, vector< i16 > & output )

private

Remove DC offset from samples.

Parameters

pcm	Input PCM samples
dcOffset	DC offset to remove
output	Output buffer for DC-removed samples

Definition at line 135 of file signal_conditioner.cpp.hpp.

                                                                                             {
    const size count = pcm.size();
    output.clear();
    output.reserve(count);
 
    for (size i = 0; i < count; ++i) {
        // Zero out samples that were marked as spikes
        if (i < mValidMask.size() && !mValidMask[i]) {
            output.push_back(0);
            continue;
        }
 
        i32 sample32 = static_cast<i32>(pcm[i]) - dcOffset;
 
        // Clamp to int16 range to prevent overflow
        if (sample32 > 32767) sample32 = 32767;
        if (sample32 < -32768) sample32 = -32768;
 
        output.push_back(static_cast<i16>(sample32));
    }
}

References mValidMask, and fl::span< T, Extent >::size().

Referenced by processSample().

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