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6. APPLICATIONS
The universal full-function concept of the ULTRAMATCH allows plenty of applications. It turns out to be an
ultimate tool, providing useful solutions for almost any problem. The power of the ULTRAMATCH is accessible
via a simple and intelligible user-interface, allowing quick and easy operation.
6.1Sample Rate Conversion
No matter what kind of material is received, the ULTRAMATCH converts it to a standard format. In every-day
studio life, lots of possible applications are imaginable:
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conversion from 48 kHz (DAT recordings) to 44.1 kHz (CD standard rate);
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conversion from 44.056 kHz (old-standard digital recordings) to 44.1 kHz (CD standard rate);
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conversion from 32 kHz (non-CD standard material) to 44.1 kHz (CD standard rate).
6.1.1 Operation in a DAT-Based Studio
Only recently, inexpensive DAT recorders have been introduced that are able to record analog signals directly
with a sample rate of 44.1 kHz. Most DAT recorders, however, only allow recordings with a sample rate of 48
kHz. Usually, such recordings have to be re-recorded then from the consumer DAT recorder to a professional
recorder via analog connections. The necessary D/A and A/D conversions lead to an unwanted deterioration in
quality of the original material. The use of the ULTRAMATCH eliminates this problem by converting the sample
rate on the purely digital level, resulting in a significantly higher quality of the audio material.
Other inconveniences, such as incompatible identifications, wrong formats, or an unstable sample rate, are
corrected by the ULTRAMATCH in real-time. Thus, the ULTRAMATCH allows real high-quality re-recordings.
6.1.2 Harddisk Recording
Harddisk recording applications require a uniform sample rate, preferably the one used by the medium to be
employed (i.e. the CD). In this case, too, the ULTRAMATCH allows re-recordings on the digital level by a
conversion from sources with a rate of 32 kHz or 48 kHz to the standardized 44.1 kHz.
Of course, the ULTRAMATCH can be inserted anywhere in the signal path, even between a computer and the
DAT recorder. In non-critical applications, the material can be edited with the computer with a rate of 32 kHz
and then be converted to 44.1 kHz while recording it to DAT.
6.1.3 Reduction of Memory Requirements
One minute material sampled with a rate of 44.1 kHz requires about 10 Mbytes memory. If the sample rate was
reduced down to 32 kHz, only 7 Mbytes of data would have to be stored. When large amounts of audio material
have to be recorded or backed up, a lot of memory and costs can be saved.
The steep-curved digital filter integrated in the SRC processor of the ULTRAMATCH and the high-quality
processing of the input material often allows a conversion to 32 kHz without any audible deterioration in quality.
Non-critical material (especially radio or video spots, sound archives, etc.) remains almost unchanged in
sound when the transmission rate is limited to 15 kHz, thus remaining entirely fit for later use with regard to the
purpose it was recorded for. The integrated digital filter operates with significantly better results than compara-
ble filters in A/D converters, leading to a purer and more transparent sound than direct recordings with a
sample rate of 32 kHz. We recommend: Just try it!
6.1.4 Master/Slave Conflicts
Master/slave conflicts occur at the latest when a digital mixing console is employed. There is a simple expla-
nation: In normal configurations with CD players, DAT recorders, and hard disk recorders, the replaying
device is the master, the recording one acts as slave. When the CD player transmits a signal with a rate of 44.1
kHz, the recording DAT device automatically synchronizes.
If a mixing console is inserted between CD player and DAT recorder, the CD player will the master device and
the console the slave device. However, the connected DAT player is used for recording as well as for playing -
6. APPLICATIONS