This especially holds true the more motion is occurring between frames. For video, a minimum of 24 frames per second is required in order to guarantee that motion be depicted accurately less than that, and the motion might appear choppy, and the illusion of continuous non-interrupted movement cannot be maintained. While the audio sampling rate and the video frame rate are similar, the usual numerical minimum for guaranteed usability in each one is very different.
#Wav 8 bit vs 16 bit series#
A video is simply a series of pictures, usually called in this context “frames”, displayed back to back very quickly to give the illusion (at least to us humans) of continuous non-interrupted motion or movement. The sampling rate is analogous to the frame rate or FPS (frames per second) measurement for videos. The 1/8000 number in this case would be called the sampling interval (measured in seconds), and the sampling rate is simply the multiplicative inverse of that. For example, if the sampling rate is 8000 Hz, it’s not enough that there be 8000 samples sampled during a second they must be taken at exactly 1/8000 of a second apart. It’s very important to note that these samples are taken at temporally equispaced instants in a second. An audio sample is just a number representing the measured acoustic wave value at a specific point in time. It is measured in samples per second or Hertz (abbreviated as Hz or kHz, with one kHz being 1000 Hz). The sampling rate refers to the number of samples of audio recorded every second.
What exactly is the sampling rate of an audio file? Some of the values you might have come across are 8kHz, 44.1kHz, and 48kHz. The first term we often hear about is the sampling rate or sampling frequency, which both refer to the same thing. For the rest of this post, we’ll assume that we are dealing with only one channel of uncompressed audio. To that end, I wanted to talk about some of these terms, describe what they are, and showcase what they mean for the quality of an audio recording or stream. I used to be one of those people before I had to work on audio processing. When it comes to audio processing, there is a lot of terminology that most people have heard before but do not really understand. But what exactly do these audio codecs do in terms of compression, and what determines the quality of an audio file in the first place? If your project settings are in 24bit, and you export in 16bit without dithering, your audio file is damaged before it even goes to the mastering engineer.In a previous blog post, Rahul talked about audio codecs and transcoding, some of which “compress” audio in order to save storage space.
For example, if you are producing in 16bit, be sure to export in 16bit or higher. Note: If you intend to have your song mastered, it is best to export at the same bit-depth or higher as your project settings are set to. What are the current settings of your project? What are the current bit-depth of your samples? What is your playback bit-depth settings set at? These are all things you should know when producing your track.
If you are producing in 16bit, and your playback settings are 24bit, there is no need for dithering. If you are recording and producing in 16bit, and your playback is in 16bit, then there is no need to dither. If you are producing in 24bit and your playback is set to 16bit, then you should be using a dithering tool in your production chain. In this regard, you should keep the consistency of bit-depth throughout your production process from beginning to end. Which means if you try and play a 24bit audio file through one of these 16bit playback devices, it will sound like shit. Although 24bit is a higher quality sound with more audio detail, and eliminates truncation distortion altogether, the reality is that 90% of all playback devices are 44100/16bit. The answer is simple all finished, mastered audio files are 16bit. Now that you have a better understanding of what dithering is, you might be asking yourself, “why dither?” Especially if you can just keep your 24bit-resolution file and avoid dithering altogether.
0 kommentar(er)
