Year 1 Module BACM104

What are industry standards for audio?

The minimum industry standards for audio are:

  • 48kHz – Sample Rate
    • The sample rate is the amount of sample points per second; in other words, the number of times per second information about a sound is being captured. The more samples taken per second will mean a more accurate digital representation of the sound. Nyquist theorem states that the sampling rate must be at least twice as large as the highest frequency you want to capture, but the standard for film and TV is 48kHz.
  • 24 bit – Bit Depth
    • After audio signals gets sampled during recording, they then get quantized. This is the process of ‘rounding off’ between samples; the higher the bit depth means less rounding off and a more accurate digital recording of the sound is recorded, the lower the bit depth will mean a less accurate digital recording of the sound is recorded and thus more digital noise will be present. A 24-Bit depth allows us to manipulate the sound without losing quality.
  • .WAV format
    • .WAV is an uncompressed format, meaning the recording is reproduced without any loss of audio quality. .WAV is also easy to process and edit, and also allows us to listen to audio with samples rates of up to 192 kHz and bit depths of 24.

What Audio production companies exist in the UK?


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