Function mono_from_audio

src/models/omnivoice/postprocess.cpp:246–257

}

std::vector<float> mono_from_audio(const runtime::AudioBuffer & audio) {
    if (audio.sample_rate <= 0 || audio.channels <= 0) {
        throw std::runtime_error("OmniVoice postprocess requires valid audio metadata");
    }
    if (audio.samples.empty()) {
        return {};
    }
    if (audio.samples.size() % static_cast<size_t>(audio.channels) != 0) {
        throw std::runtime_error("OmniVoice postprocess received invalid interleaved audio");
    }
    return engine::audio::mixdown_interleaved_to_mono_average(audio.samples, audio.channels);
}

runtime::AudioBuffer make_audio_buffer(std::vector<float> mono, int sample_rate) {
    runtime::AudioBuffer out;