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The number of samples per second.
The larger the number of samples, the more close to the original data¡£
However, the data amount will get bigger.
Example: 8kHz means sampling 8,000 times/sec.
16kHz means sampling 16,000 times/sec. |
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The number of bits that shows the amount of data sampled once.
The longer the bit length, the more close to the original data.
However, the data amount will get bigger.
Example: In 4-bit ADPCM2, the bit length is 4 bits.
In 8-bit PCM, the bit length is 8 bits. |
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| ADPCM/ADPCM2 |
OKI SEMICONDUCTOR-original data compression format, where audio data
is digitized at regular intervals. When this format is used, data amount is reduced
because of the difference from the data before compression. Has the highest
compression rate. |
Suited to reproduce human voice, animal¡¯s voice, and nature sound. |
| PCM |
Has the best sound quality among the four types of syntheses; however, the
compression rate is the lowest. |
Suited to reproduce music and sound effects. |
| Nonlinear 8-bit PCM |
OKI SEMICONDUCTOR-original format, which records data at 10-bit
resolution in the vicinity of the center of a waveform.. Produces 10-bit
equivalent sound quality in terms of audition. |
Suited to reproduce small human voice. |
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