ESI Waveterminal U24 - Manual (Page 47)

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select the Soft mode or manually adjust the levels of each output source
you have selected.
S A M P L E R A T E
Sample rate determines the number of samples per second that is used to
convert analog audio to digital audio.
As most of you may know, sample rate for CD-DA is 44.1kHz and
professional digital audio masters are usually recorded at 48kHz sample
rate. U24 may be used to sample analog audio at 48kHz, but at some point
in time it must be converted down to 44.1kHz for it to be used in a viable
consumer format, such as CD-DA. Once you convert (dither) the data
down to a lower sample rate format, you will experience some losses in
frequency response. However, analog audio recorded with higher sample
rate and bit resolution will sound cleaner and retain more accurate
frequency response when they are dithered down to lower bit rate or
converted to lower sample rate.
1. AUTO
Sample rate is automatically set by the selection you make in your
digital audio recording software during analog audio recording or
by the encoded signal format during digital audio recording.
2. SAMPLE RATE
There are three different sample rates available – 32kHz, 44.1kHz
and 48kHz. If you want to convert sample rate in real time, you
can select desired sampling rate among them.
R E A L - T I M E S A M P L E R A T E C O N V E R T E R
U24 can function as a real-time sample rate converter. This is U24’s
unique function that you cannot find from any other digital audio interface.
You can change the incoming digital signal to a different sample rate by
choosing Internal word clock and selecting a desired sample rate. The
maximum conversion ratio is 3:1, so if your input signal’s sample rate is
96kHz, you can convert it down to 32kHz (96/3) or convert 11kHz signal