跨平台库以规范音频？

Question

您知道我可以用来标准化采样音频的任何跨平台音频库吗？

Answer 1

normalization is an easy process. this is a simple implementation for float s:

float peakAmplitude(0.0f);

/* find the peak */
for (size_t idx(0); idx < bufferLength; ++idx) {
    peakAmplitude = std::max(peakAmplitude, std::fabs(buffer[idx]));
}

if (0.0f >= peakAmplitude) {
    std::cout << "signal is silent\n";
    return;
}

/* apply normalization */
const float mul(1.0f / peakAmplitude);
for (size_t idx(0); idx < bufferLength; ++idx) {
    buffer[idx] *= mul;
}

other signal formats can be easily converted.

Answer 2

Google is your friend:

http://normalize.nongnu.org/

https://neon1.net/prog/normalizer.html

If you can't use GPL code in your project, then just read the description of the algorithm on the second website and implement your own. It's pretty simple.