Changing The Bit Depth - Sony PS-LX300USB Operating Instructions Manual

1. Open and play the Voiceover.pca file.
·Note:, ThiS
file
is located in'thesame'foldet;as the
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. .
• » . .
k·;
2. Right-click the Sample Rate status box and choose 48,000 from the shortcut menu.
3. Play the file. Notice that the pitch is higher and the duration is slightly shorter.
4. Right-click the Sample Rate status box and choose 8,000 from the shortcut menu.
5. Play the file. Notice that the pitch is lower and the duration is longer.
Changing the sample rate of a file also changes the pitch and duration. To change the
sample rate of a file while preserving its duration and pitch, use the Resample
command available on the Process menu.
Changing the bit depth
Bit depth refers to the number of bits used to represent a sound. You can increase or
decrease a file's bit depth. Increasing the bit depth does not change the quality of the
audio, but it allows subsequent processing to be performed with increased precision.
However, representing a file with less bit depth results in audible distortion, referred to
as quantization error.
1. If you want to increase a file's bit depth, open a file with a small (8-bit) bit depth. If
you want to decrease a file's bit depth, open a file with a larger (16-bit) bit depth.
2. From the Process menu, choose Bit-Depth Converter. The Bit-Depth Converter
dialog is displayed.
3. From the Bit depth drop-down list, choose a value.
4. If desired, choose an option from the Dither drop-down list.
The Dither value determines the randomness of the dither (generated noise) used
to mask quantization distortion resulting from conversion to a lower bit depth.
5. If desired, choose a Noise shaping type.
The Noise shaping value determines the aural positioning of quantization noise.
Using this control, you can shift the noise into audio registers that are less
perceptible to human hearing. This lowers the perceived noise floor and creates
the illusion of cleaner audio.
Note;
When increasing
a
file~
bit depth, the
Dith~t
iflJd
N~ise
shaping
controls should be set to
None~nd
Off, respectively.:
6. Click OK.
221 CHANGING FILE ATIRIBUTES AND FORMATS