The Crane Song HEDD-192 gives any user who works with digital the ability to sound less digital and more analog. HEDD, short for harmonically enhanced digital device, is a technological breakthrough in signal processing. HEDD is engineered to be musically transparent while providing the capability of generating tube/analog sounds in the digital domain.
Crane Song HEDD 192 Features :
- High-quality 24-bit A/D and D/A Convertors
- Selectable input sources
- Transformerless balanced I/O
- Adjustable Triode, Pentode and Tape sounds
- Digital I/O, AES and S/PDIF
- External WC Sync Input and Output
- 22 Element VU Metering
- Triode & Pentode Sounds
- Analog Tape Compression
- 100V or 230V Mains
- ships with 192 convertors (both D/A and A/D) and 192 software/firmware
- Pro Studio Recording
- CD Mastering/Preparation
- DAW Input & Output
- Project Studios
- Live Audio Engineering
Tracking, Mixing, Mastering
Applications include: CD preparation, work station input and output, DAT machine A/D and D/A convertor replacement and effects generation (warming or changing sounds in the digital domain). HEDD 192 can be used in tracking, mixing or mastering.
Selectable Input Sources
The front panel controls allow the user to select input source, sample rate, and continuously variable triode and pentode sounds. The HEDD can operate as an effects device or as separate A/D and D/A convertor with the sound enhancement process applied to either the A/D or D/A convertor.
HEDD has transformerless balanced analog inputs and outputs, transformer isolated digital inputs and outputs, and uses separate power transformers and supplies for the analog and digital sections. The unit is 1 rack space tall and operates from 115V or 230V mains.
HEDD allows you to add tube-like characteristics to your digital audio with two knobs, specifically pentode and triode. A separate knob for each tube type is available at the flip of a switch!
The triode function creates a triode like harmonic structure. This affects the bottom of your signal by fattening it up. This function contains strong even order harmonics. It should be noted that even order harmonics may or may not be easy to hear depending on the program and how much you are adding. This function is not strictly even order harmonics. The harmonic structure changes with signal level and the amount of process being applied, just like it does in a tube and the analog world.
The pentode function creates mostly third harmonic information but contains some even order harmonics and some higher order odd harmonics depending on the signal level and the amount of process. This is like driving a pentode into over load in a controlled manner. The pentode process makes things sound brighter, brings out detail, and also affects the triode process because the two processes are in series. There is also a compression effect that takes place if you run the process at higher settings.
The tape function emulates magnetic recording tape. Recording tape distortions are odd harmonic, starting with the third and fifth. As you increase the level on tape the harmonic content increases and higher odd harmonics are added. With a tape recorder there are record and reproduce EQ circuits that modify the harmonic content. The result is a sound that fattens up the bottom and midrange of a recording and as you increase the process there is a loss of hi frequencies with respect to 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.