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We recommend that, if you are recording to 16-bit, you monitor the process
from the 16-bit output of your system to get optimum results by adjusting the
HEDD’s processing and dithering.

By using the process you will affect your average signal level if you turn the
process up far enough. When adding harmonic content, the audio is going to
get louder. The HEDD process reduces the peaks in your signal while at the
same time increasing the low level harmonic content.

This means that the HEDD process will not cause any overs. In fact, what it will
do, is reduce the level of existing overs. Just think of it as a tube or tape doing
soft clipping, i.e. “squashing” the peaks and causing analog compression.

HOW MUCH PROCESS TO USE

There are no hard and fast rules, you need to use your ears. If it sounds good,
it is good.

To get you started, we’ve provided some general guidelines. Making your
recorded material sound “good” is what it’s all about. The process is level and
program dependent. Settings that will work best for one source may not work
at all for another source. As a general purpose setting jump off point, try
running the process knobs at 3.5 to 6. This should be safe. When you run into
the 5 and up range it is easy to go too far but, don’t forget, it could be a cool
thing.

The HEDD QUANTUM processing can be extremely subtle or very drastic. It
depends on how you use it.

Getting to grips with the diversity of the processes will take a little ear training.
When you’re tweaking the signal being processed by the HEDD, don’t forget to
switch the DSP in and out regularly to give you an indication of where you
started out from.

The human ear loves a little harmonic generation so you’ll quickly find that
turning the HEDD DSP off results in an apparent loss of life/excitement in the
musical source material.

Even small amounts of DSP, e.g 1 Triode, 2.5 Pentode and 2 Tape, can make
quite a big difference. You may not notice this turning up the pots, but by
putting the unit in bypass and then switching the processing back in, it will
become very apparent.

Содержание HEDD QUANTUM

Страница 1: ...t to change without notice Printed in the U S A OPERATOR S MANUAL Version 1 0 HARMONICALLY ENHANCED DIGITAL DEVICE LTD 2117 East 5th Street Superior WI 54880 USA tel 715 398 3627 www cranesong com QuantumClocking DAC ADC Quantum ...

Страница 2: ...the point where they exit from the apparatus 10 Only use attachments accessories specified by the manufacturer 11 Unplug this apparatus during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objec...

Страница 3: ...the clock timing is caused by many factors The main culprit being the frequency of the clock varying during the conversion process The newly developed crystal clock within the HEDD QUANTUM has reduced this jitter to the currently lowest possible value resulting in a well defined low end and clear top end This will allow you to judge your work more accurately and will provide you with a much stable...

Страница 4: ...able tape triode and pentode sounds The HEDD can operate as an effects device or as separate A D and D A convertor with the harmonic generation process applied to either convertor respectively The signal processor performs 24 Bit Processing on digital or analog sources HEDD Quantum has transformerless balanced analog inputs and outputs transformer isolated digital inputs and outputs and uses separ...

Страница 5: ...ce it stays on HEDD QUANTUM is locked to the incoming clock source Be aware that there is an additional 4 second delay when booting with WC selected The internal clock of HEDD Quantum has the lowest jitter of all pro audio products the we know of For best sonic and low jitter results use HEDD QUANTUM as the master clock in your set up A warm up period of 1 2 hour to 45 minutes will give best resul...

Страница 6: ...ANALOG GAIN TRIMS WC OUTPUTS WC INPUT TOSLINK OUTPUT SPDIF OUTPUT AES OUTPUT TOSLINK INPUT SPDIF INPUT AES INPUT ANALOG INPUT ANALOG OUTPUT FRONT PANEL LAYOUT BACK PANEL LAYOUT ...

Страница 7: ...lid word clock is applied and WC is selected the red light next to the switch will light to indicate lock If lock is lost HEDD Quantum will default to 44 1kHz and the light will be off Whenever the sample rate is changed the convertor is re calibrated This will keep the convertor working as accurately as possible TRIODE The triode function creates a triode tube like harmonic structure The process ...

Страница 8: ...sing sooner then the low frequencies This is a result of the compression function and eq curves in the process The compression also squashes peaks and results in a higher average level The tape process sits in series after the triode and pentode processes and thus modifies them both PROCESS SWITCH The process switch selects whether the signal processor is attached to the D A convertor A D converto...

Страница 9: ...ll about The process is level and program dependent Settings that will work best for one source may not work at all for another source As a general purpose setting jump off point try running the process knobs at 3 5 to 6 This should be safe When you run into the 5 and up range it is easy to go too far but don t forget it could be a cool thing The HEDD QUANTUM processing can be extremely subtle or ...

Страница 10: ...her down to To disable the dither just run the unit in 24 bit mode EXTERNAL WC SYNC The external WC connections are for A D convertor synchronization with external devices Word Clock does not affect the digital inputs since the digital inputs provide their own clock information The input WC connection is used to synchronize the A D convertor to an external source The six new WC output connections ...

Страница 11: ...elected as digital or D A Cranesong defines a digital over as a single sample overload APPLICATIONS HEDD QUANTUM can be used for many different tasks It can be operated in the following modes full analog in analog out full digital in digital out A D and D A convertors with the signal processor operation attached to either convertor It can be across the stereo bus of a console feeding a digital dev...

Страница 12: ...GITALINPUT SELECT PROCESS OR ROUTING SWITCH PROCESS BLOCK DIAGRAMS ANALOG INPUT DIGITAL INPUT SELECT AES SPDIF OPTICAL DIGITAL OUTPUTS AES SPDIF OPTICAL ANALOG OUTPUT PROCESS SELECT ROUTING AND DSP DITHER SOURCE DSP ...

Страница 13: ...ly They do not require to be at the same sample rate PROCESS SWITCH SET DIGI DSP ACTIVE OUTPUTS AES SPDIF OPTICAL ANALOG DIGITAL INPUT SELECT AES SPDIF OPTICAL DSP A D ACTIVE OUTPUTS AES SPDIF OPTICAL ANALOG ANALOG INPUT PROCESS SWITCH SET ANA D A D A ...

Страница 14: ...ACTIVE OUTPUTS ANALOG SELECT ONE DIGITAL INPUT AES SPDIF OPTICAL DSP A D ACTIVE OUTPUTS AES SPDIF OPTICAL ANALOG INPUT PROCESS SWITCH SET AD ANALOG INPUT PATH DIGITAL INPUT PATH D A ...

Страница 15: ...ACTIVE OUTPUTS ANALOG A D ACTIVE OUTPUTS AES SPDIF OPTICAL ANALOG INPUT PROCESS SWITCH SET DA ANALOG INPUT PATH DIGITAL INPUT PATH DSP SELECT ONE DIGITAL INPUT AES SPDIF OPTICAL D A ...

Страница 16: ...ANALOG GAIN TRIMS WC OUTPUTS WC INPUT TOSLINK OUTPUT SPDIF OUTPUT AES OUTPUT TOSLINK INPUT SPDIF INPUT AES INPUT ANALOG INPUT ANALOG OUTPUT ...

Страница 17: ...requency Standard PRS10 Without info on the measurement bandwidth and test instrument used the measurement is impossible to know about Test Software does not make a distinction between random and deterministic jitter AES 12id 2006 r2011 excludes modulation components below 10 Hz in it s jitter definition Jitter requirements depends on the curcuits being used and the desired results ...

Страница 18: ...t info on the measurement bandwidth and test instrument used the measurement is impossible to know about Test Software does not make a distinction between random and deterministic jitter AES 12id 2006 r2011 excludes modulation components below 10 Hz in it s jitter definition Jitter requirements depends on the curcuits being used and the desired results 44 femto Seconds ...

Страница 19: ...2K kHz The input impedance is 75 ohms Word Clock Outputs these BNC connectors are a TTL level square wave that can be used to provide sync to other equipment The WC outputs will be at the selected sample rate or the rate of the WC input Internal Sample Rate 44 1kHz to 192kHz determined by front panel switch S PDIF Input Unbalanced digital input 75 ohms RCA connector S PDIF Output Unbalanced digita...

Страница 20: ...__ STUDIO NAME________________________________ ADDRESS ___________________________________________ CITY___________________________STATE_____ ZIP___________ COUNTRY________________ PHONE ________________________ SERIAL ___________________________________________ DEALER_____________________________________ PURCHASE PRICE _______________________ E MAIL________________ WEB______________________ ...

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