Rohde & Schwarz UPL

Audio signal processing without digital
technology is no longer conceivable. Yet,
analog technology is still present and
constantly being improved. State of the art
measuring instruments must therefore
be able to handle both analog and
digital signal processing.

The Audio Analyzer R&S UPL performs virtually
every type of analog measurement:
frequency response measurements; externally
controlled sweeps with reference
traces; determination of 3rd order difference
frequency distortion; or spectral display
of demodulated wow and flutter
signals. In contrast to many other audio
analyzers, the R&S UPL can perform real
dual-channel measurements in the audio frequency
range, i.e. there is no need for switch over between two inputs and this type of measurement is not limited to a few special cases.

The generator is equally versatile:
it supplies any conceivable signal whether
sine wave, noise signals, or multi-sine wave
signals comprising up to 7400 frequencies.

In addition, the R&S UPL features excellent
technical data: analog sine wave generation
with harmonics of typ. -120 dB;
spectrum displays with a noise floor
below -140 dB for analog and -160 dB
for digital interfaces; and FFT with a maximum
frequency resolution of 0.05 Hz.

The R&S UPL provides signal monitoring
via loudspeaker, jitter measurements on
digital audio signals, resynchronization of
jittered digital audio signals by means of a
jitter-free clock signal, and much more.