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Old 07-07-2009, 06:07 PM   #1
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Smile Sound help

I know that CD Audio is 44.1 kHz at 16 Bit Stereo

But then I see a lot of 48 kHz at 16 Bit stereo

Is the 48 kHz a new way of recording Audio?
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Old 07-07-2009, 06:21 PM   #2
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Default Re: Sound help

Not new, but its just a way of recording more range.

When you convert to MP3 and CD Audio though, your going to lose some of the higher ranges that you recorded, if your recording equipment was good enough in the first place.

Theres also 24bit - 96KHZ recording on newer sound cards, which of course DVD Audio and Super Audio CD's are capable of playing if you have the right equipment.
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Old 07-07-2009, 06:54 PM   #3
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Default Re: Sound help

Yea. People have recorded and produced audio at 48KHz for a long time now.

Imagine the audio as a picture.

The sample rate is the 'resolution' of the audio and the bit rate is the 'resolution' of each sample.

Also the frequency range is 'usually' half the sample rate.

8KHz - Telephone systems, micro cassette recording.
22KHz - AM Radio, MP3
32KHz - Cassette recording.
44.1KHz - CD
48KHz - DAT
96KHz - DVD

Theres many ways you can record audio. What sample rate the digital recorder works at depends on the recorder itself.
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Old 07-07-2009, 07:54 PM   #4
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Default Re: Sound help

Do note that most human ears can only interpret 20hz to 20khz, which is why CD Audio in its uncompressed form is enough for most people.

MP3's can also be in 44khz
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Old 07-07-2009, 07:56 PM   #5
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Default Re: Sound help

Quote:
Originally Posted by Kage View Post
Do note that most human ears can only interpret 20hz to 20khz, which is why CD Audio in its uncompressed form is enough for most people.

MP3's can also be in 44khz
Granted.
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