Setting The Sampling Frequency - Yamaha PortaTone PSR-1700 Owner's Manual

PSR-2700 Digital Sampling
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The length of the sample you can record and its sound quality are determined by the "sampling frequency". A
high sampling frequency produce better sound quality but shorter samples; a low sampling frequency allow
longer recording but with reduced sound quality. The PSR-2700 gives you two sampling frequency settings:
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X
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Play the sound you intend to record, via microphone or line, and adjust
the INPUT LEVEL control while watching the level indicators above the
control. The length of the "bar" formed by the level indicators increases as
input level increases. For optimum sound quality, your input signal should
cause most of the indicators to light, but not all. If all indicators including
the red "0 dB" indicator light in response to the input signal you're prob-
ably overloading the input circuitry and will end up with distorted sound. At
the other extreme, if none of the indicators light, or only the lowest one or
two indicators light, then the input signal is too small and the level of the
recorded sound will be too low.
Once the input level has been set properly, press the DIGITAL SAM-
PLING [REC] button to exit from the level check mode.
Press the DIGITAL SAMPLING section [FREQ] button. The current
sampling frequency setting will appear on the LCD display panel.
Use the [+] and [–] buttons, the number buttons, the data dial, or the
[FREQ] button itself to select the desired sampling frequency setting
("LOW" or "HIGH").