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Sample rates

Sound design and production in general
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fxstylez
State Newcomer
Posts: 16
Joined: 18 Feb 2013, 06:16

Sample rates

Post by fxstylez »

Could anyone tell me, what would be the advantage of bouncing a track with a sample rate of 192khz rather than 44.1khz when we can't hear the higher frequencies and our speakers probably can't reproduce them anyway?
Cheers

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Xenon96
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Joined: 01 May 2012, 19:45
Location: Romania/Hungary

Post by Xenon96 »

sample rate is not the same thing as sound frequency
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Kedde
Artist
Posts: 684
Joined: 07 Feb 2010, 16:36

Post by Kedde »

This might be useful for you to read :) : http://productionadvice.co.uk/high-samp ... und-worse/

Alphajuno
State Citizen
Posts: 107
Joined: 31 Aug 2012, 16:14
Location: Lier

Post by Alphajuno »

Ever listened to some music and thought: "hmm, this sounds like it's recorded at 192khz sample rate, sweet!" ??

No you have not, and you never will. Don't waste your time over this when you could be making music that moves people!
Not cut from the same mold!

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Cardioid
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Joined: 03 Feb 2012, 22:14
Location: Noordwijk ZH
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Post by Cardioid »

@ Xenon
Actually, you're totally wrong here.. Sound frequencies have much to do with the sample rate. The sample rate is the amount of samples per second in which the actual analogue frequencies are sampled by the interface. The amount of samples created per second are really important to the frequency content in the digital domain. When you have a higher sample rate you have more samples at a higher analogue frequency. Lets say: when you sample at 44.1 kHz and a frequency of 20 kHz goes through the converter, the converter will sample two spots in that frequency. That means that you will have really square waveform. When you sample at 192 kHz a frequency of 20 kHz will be sampled over 9 times. That will give you a more accurate waveform. When we talk about aliasing the higher sample rate will have dramatic effects on this subject. When we have a low sample rate the aliasing will occur much faster at lower analogue frequencies. With a higher sample rate the aliasing threshold will be at a higher frequency. Its always better to sample at the highest sample rate and bit depth, but when we talk about data usage this will not be the ideal solution. With a high sample rate and bit depth the data usage will be sky high and when transferring the data this will take a large amount of time. Finally, because CD's have a sample rate of 44.1 kHz and a bit depth of 16, most people record at this settings. Otherwise you will have to down sample and then you will destroy some audio you might not want to. When recording for DVDs or Blu-ray you will have to use a higher sample rate to have all the detail and depth in your mix.
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fxstylez
State Newcomer
Posts: 16
Joined: 18 Feb 2013, 06:16

Post by fxstylez »

Nonkovich wrote:@ Xenon
Actually, you're totally wrong here.. Sound frequencies have much to do with the sample rate. The sample rate is the amount of samples per second in which the actual analogue frequencies are sampled by the interface. The amount of samples created per second are really important to the frequency content in the digital domain. When you have a higher sample rate you have more samples at a higher analogue frequency. Lets say: when you sample at 44.1 kHz and a frequency of 20 kHz goes through the converter, the converter will sample two spots in that frequency. That means that you will have really square waveform. When you sample at 192 kHz a frequency of 20 kHz will be sampled over 9 times. That will give you a more accurate waveform. When we talk about aliasing the higher sample rate will have dramatic effects on this subject. When we have a low sample rate the aliasing will occur much faster at lower analogue frequencies. With a higher sample rate the aliasing threshold will be at a higher frequency. Its always better to sample at the highest sample rate and bit depth, but when we talk about data usage this will not be the ideal solution. With a high sample rate and bit depth the data usage will be sky high and when transferring the data this will take a large amount of time. Finally, because CD's have a sample rate of 44.1 kHz and a bit depth of 16, most people record at this settings. Otherwise you will have to down sample and then you will destroy some audio you might not want to. When recording for DVDs or Blu-ray you will have to use a higher sample rate to have all the detail and depth in your mix.
Thanks man, do when you mention the downsampling with CD's, I'm guessing that from what you said if I released a track then I should stick with 44.1khz, but higher sample rates for something like DVD?

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Cardioid
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Posts: 947
Joined: 03 Feb 2012, 22:14
Location: Noordwijk ZH
Netherlands

Post by Cardioid »

@fxstylez That's totally up to you. It is what you prefer.. No rules in audio mate :)! When you are producing hits for just CD or Mp3 quality it is okay to record at 44.1 kHz, 16 bits. If you don't, my choice would always be a higher sample rate and bit depth. When sampling at higher sample rates and bit depth, your sound frequencies will be sampled more accurate and the voltages will be assigned to more accurate bytes. Cheers
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