Wednesday, February 10, 2016

“High-res audio”

“High-res audio”. Gary McGath. Mad File Format Science Blog. February 8, 2016.
    High-res audio, sound digitized at 192,000 samples per second is not necessarily better than the usual 44,000. We can only hear sounds only in a certain frequency range, generally 20 to 20,000 Hertz.

"The sampling rate of a digital recording determines the highest audio frequency it can capture. To be exact, it needs to be twice the highest audio frequency it records." Delivering playback audio at a higher rate offers no benefit and may introduce problems. Another important part of audio is the number of bits per sample, usually 16 bits, but higher-res audio often offers 24 bits. This "isn’t likely to cause any problems", but it doesn't necessarily provide a benefit.   A bigger problem is "over-compressed and otherwise badly processed files".  It is important to not skimp on quality.

No comments: