How could I represent 1.625 by 0 or a 1 (binary digit)?

Posted by pepito on Super User See other posts from Super User or by pepito
Published on 2012-06-24T03:06:00Z Indexed on 2012/06/24 3:18 UTC
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codec

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binary

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digital-audio

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gsm

This is an excerpt from wikipedia about 'full rate' speech coding standard.

Full Rate or FR or GSM-FR or GSM 06.10 was the first digital speech coding standard used in the GSM digital mobile phone system. The bit rate of the codec is 13 kbit/s, or 1.625 bits/audio sample.

And this one is an excerpt from wikipedia about bit.

In computing parlance, bit is the abbreviation for a single binary digit, represented by a 0 or a 1.

How could I represent 1.625 by 0 or a 1?

Actually, that's my lecturer's question that I could not answer. Some links to papers are more than welcome.

Thanks in advance.

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