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One widely-agreed method of assessing loudness is by measuring SPL with a sound pressure level meter, which is the sound pressure level in decibels (dB). In audio production communities, this is called level.
Step 1. Find a WAV file's sample rate in Windows by right-clicking the file, then clicking "Properties." In the window that appears, look under "Audio Format" for a set of details including a number expressed in kilohertz (kHz): This is the sample rate.
Re: Export WAV file in dB scale That lets you see the loudest 25dB of the show which is usually most important. If you really want to see the dB scale, you can do that with the drop-down menu on the left > Waveform (dB). It won't change the show at all.
I have a bunch of different audio recordings in WAV format (all different instruments and pitches), and I want to "normalize" them so that they all sound approximately the same volume when played.
I've tried measuring the average sample magnitude (the sum of all absolute values divided by the number of samples), but normalizing by this measurement doesn't work very well. I think this method isn't working because it doesn't take into account the frequency of the sounds, and I know that higher-frequency recordings sound louder than lower-frequency sounds of the same amplitude.
Does anyone know a good method for measuring the loudness of a sound?
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