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Unlike computer-based sofware system, these operate in real time.  You do not have to record onto a computer, then process, and finally listen to or burn a CD.  This noise reduction units can be adjusted and used as you listen and they operate in two steps.  They can be easily integrated into an ordinary hifi system, or professional system via RCA input and output jacks.  A complete system would consist of a Surface Noise Reducer connected in series to a DEHISSER.  One may also purchase either unit if only one form of noise was found more annoying.  For 78 rpm reproduction, the DEHISSER probably provides the most benefit.  For LP listening, the Surface Noise reducer may provide the most benefit.  With older records, you can obtain optimum noise reduction by combining the Surface Noise Reducer and the Rek-O-Kut Dehisser into a system. 

In evaluating these systems, it is necessary to consider the psychoacoustic factor.  When listening to recordings with high frequency noise, we also perceive more highs than are actually present. We tend to associate the two. When the noise is removed, we perceive that the highs are also removed. 

A complete audio restoration system consisting of the Re-Equalizer, Surface Noise Reducer, and DEHISSER would provide the majority of features of the, now discontinued, Packburn Noise Reducer.  That unit sold for $2,600.00 in 1988.  The cost of our system costs exactly half of that and has better performance plus much less audio distortion.

EVALUATION CD.  We now have available two CDs that demonstrates the performance of the noise reduction devices we sell.  One CD demonstrates the performance of the Esoteric Sound Surface Noise Reducer, and another that demonstrates the performance of the Rek-O-Kut DEHISSER.  Both also show the effectiveness of CEDAR products.  Each is available for $3.00 ppd.  This can be deducted from the purchase price of any unit you purchase.  For more information:

                       Click here for Esoteric Sound Surface Noise Reducer Demo CD                                              Click here for Rek-O-Kut Dehisser Demo CD 

You can download the complete DEHISSER demo CD in MP3 format.  It takes about 4 minutes if you have hi-speed Internet.  Just right click on the link and choose to save on your computer.  Best to listen to it on a editor, like Audacity, as you can better identify the CD tracks (MP3's don't have tracks).

                                                                                                                   Download complete Rek-O-Kut Dehisser Demo CD


 REK-O-KUT®  DE-HISSER

WHAT THE "AUDIOPHILE" MAGAZINES IGNORE:

"I am VERY VERY pleased...highly suggesting these...( De-Hisser and Surface Noise Reducer)… for anyone that plays and collects 78,s and radio transcriptions"

"...how pleased I am with the results I'm getting with the De-Hisser...It's the perfect solution for cleaning up the early music cassette tape recordings that I'm working on"

"WOW ! - I've been having fun for the past few days...really impressive results on some Louis Jordan and Rosetta Tharpe Decca 78's"

"...your groove wall selector...has bailed me out many times.  You did a superb job of making that feature available"

 "It is really nice to enjoy those early sounds ...without any kind of “overfiltering” or digital artifacts!"

"I am particular impressed by the clean sound from the Rek-O-Kut De-Hisser for playback of 78’s!

"I...was amazed at how the (De-Hisser) filter made the highs pop out rather than killing them off"

"Listening to you demos, we actually prefer the SNR + De-Hisser result over CEDAR"

"The combination of the ROK’s RE-EQ and dehisser together...is just dynamite!"

"in extreme cases I...play only one side of the groove (thanks to your de-hisser)"

 "Selecting one groove wall plus the 80 Hz filter makes a huge difference"

"The Dehisser works well with my 78's. I'm very satisfied with it"

"I already use the Dehisser for a while now and it's fantastic!"

"I am really happy with the features and build quality!"

"The DeHisser works beautifully...I love it!"

"the dehisser... seems to fit the bill"

"What a difference"

Denoise Any Record Or Tape    REMOVES THE NOISE, NOT THE MUSIC!   While You Listen - No Computers



 THREE NOISE REDUCTION SYSTEMS IN ONE
for use with modern stereo LP records, old mono LP records, all tape/wire recordings, and vintage noisy 78s
A perfect companion to follow the SURFACE NOISE REDUCER
Easily connects to most hifi systems

The Rek-O-Kut De-Hisser is actually three products in one: a background hiss reducer, a left/right groove wall selector for mono records, and a low frequency noise rumble filter.  Use it in real time.  No time wasted with computers.  Great for motion picture work.  With zero latency, no loss of voice synch.  Installation is most convenient thru the external tape monitor circuit or your preamplifier/receiver.  If none, we suggest getting one of our phono preamps, connecting to your amplifier's AUX input.  A  furniture-grade walnut case is available, look under ACCESSORIES.   Not supplied with interconnect cables.  Send for our 44-track demo CD.  Please include $3.00 for postage.

GROOVE WALL SELECTOR,  a must for collectors or restorers of mono records.  This switch permits you to select the least noisy groove wall of a mono record. In addition, the Rek-O-Kut De-Hisser features a unique circuit which cancels out rumble and similar noises that are common to both groove walls.  Other switching circuits (left only or right only) permit low frequency noises (rumble) to be heard unimpeded. Our added circuitry removes the rumble and not the bass.  For more details, click here.

HISS REMOVAL is not accomplished by a common variable, and in most cases manual,  hi-cut circuit.   These 1940's technology filters remove either the music or cause an annoying pumping sound of the background noise.  The DE-HISSER uses several automatic, music-controlled filters within the spectrum of the program material.  Thus, you do not notice it do anything, but make the music much more noise-free.  Background hiss is one of the most annoying noises produced by tapes, cassettes, and records from 78 rpm thru vintage mono LPs to more modern stereo LPs.  Using analogue filtering, it introduces absolutely no CEL telephone-like sounds commonly obtained with digital techniques and computer programs.  Gain 10 dB of Signal to Noise Ratio.

THE LO-CUT Subtly removes low frequency noises that can muddy the sound of records all vintages.  This switch can select two amounts of low frequency noise attenuation. The 40 Hz position will suffice for many noise-plagued LP records and 78s, while the 80 Hz position may prove useful with old acoustic records, records with, rumble, severe warps, or records requiring bass boost.

Listen to LP,
RCA LSC-2433

Listen to LP,
Concert Disc CS-25

Listen to 78,
COLUMBIA 67837

1937 NBC
transcription

1950 ABC transcription

Listen to 1938 Fibber McGee transcription

Listen to 78, 
BRUNSWICK 2827

Listen to 2-track tape
RCA BCS-31

SPECIFICATIONS:

Frequency Response: 20-20 kHz, +/- 0.5 dB
Signal to Noise Ratio: >90 dBA
Distortion: 0.05%
Noise Reduction: 10 dB
Min. Audio Response: 2.5 kHz
Max Signal: 4 Volts RMS
Input Imp:  100 kOhms
Output Imp:  100 Ohms
Controls: Input, Lo-Cut, Dehiss, Bypass
Low Cut: 40 Hz, 80 Hz
Latency: zero
Power source: 120/240 VAC, 50/60 Hz
Dimensions: 19" x 1-3/4" X 7"
Weight: 5.1 lbs
Accessories: Universal Wood Cabinet ($126.00)

FEATURES

* Works with all  formats.  2 units required for 4 channel tapes, or Binaural LPs
* No background noise pumping with music or spoken word recordings
* Works with film soundtracks in real-time.  No loss of lip synch
* Quality components and film capacitors for audiophile sound
* Connects to hifi systems like an ordinary graphic equalizer
* Works with modern audiophile, or vintage records
* No digital audio artifacts, even when over-used
* Gold-plated RCA connectors

For more detailed information, look at the operating manual.

PRICE: $294.00 (IL Res. add 8.00% IST) + $24.50 (with case, $28.75) SHIPPING


N
on-USA shipping:  Canada - $53.00( w/case - $65.00); England/Australia - $83.00(w/case - $103.00); Europe/Japan - $74.00(w/case - $90.00); Russia - $88.00(w/case - $111.00). The USPO advertise, but does not promise, 6 - 10 days delivery time;  insurance value is $200.00.

 


ESOTERIC SOUND SURFACE NOISE REDUCER
Effective On Most Ticks, Pops, And Some Crackle

THE ANALOGUE SOLUTION

"That SNR is awesome!"

"It is a great product for my LP collection...and it works"

"Much lower overall surface noise, greater clarity and body to the music"

"an unlistenable record...is now very enjoyable to listen to straight through. Thank you"

"Superb instrument! ...a new record with some ‘factory’ pops, totally gone...a badly beat up ‘45...cut out about half of the most annoying pops"

 "it's really impressive when ...between LP bands, ...When these surface noises are moderate, they are substantially reduced, and when...low, ...disappear"

and from Europe:
"It works great, I’m not only pleasantly surprised – I’m absolutely astonished and amazed how good it is"

 - eliminates or reduces these noises from most types of phonograph records.  Its circuit can identify and remove many clicks and pops found on Lp's and even 78's and other vintage records.  It will cause minimum degradation to either audiophile or vintage records and is suitable for inclusion into advanced audiophile systems where phonograph records are used.  While use of a graphic equalizer or "scratch filter" to remove ticks and scratches is somewhat effective, such filters reduce or eliminate the highs found on records.  The Esoteric Surface Noise Reducer acts only on the click or pop without effecting program material.  The Surface Noise Reducer is also very effective in reducing ignition noise from FM radio broadcasts.

It requires the input of a stereo signal, even if of mono material.  Mono disc records must be played with a stereo pickup.  Installation is most convenient thru a recorder/external equalizer monitor of your preamplifier/receiver.  If none, use a stereo preamplifier.   Connect its output to the SNR's input and the SNR's output to an AUX input on your amplifier.  Not supplied with interconnect cables. 

For a thorough demo, send for our 44-track demo CD.  Please send or PAYPAL $3.00 for postage.

Listen to LP, RCA LSC-1984

Listen to BLUES 78

 

SPECIFICATIONS:

Frequency Response: 20 TO 20 KHz +/- 0.20 dB
Distortion
: Less than 0.02% at 1 kHz
Signal to Noise Ratio: >90 dBA
Crosstalk: >50 dB from 20 TO 20 KHz
Gain: 0 dB +/- 0.5 dB (Unity)
Max Signal: 6.5 Volts RMS
Input Imp.: 50 kOhms
Output Imp: 50 Ohms
Controls: Distortion Limiting, Quieting, Bypass/In
Indicators: THD, Noise Reduction
Power: 120 VAC/60 Hz, 230 VAC/50 Hz
Construction: Black anodized aluminum case, gold-plated connectors
Size: 19" X 1.75" X 7"|
Weight: 4.1 lbs
Accessories: Universal Wood Cabinet ($126.00)

FEATURES:  

* In "BYPASS" mode, signal is hard-wired input to output - introduces nothing to any audiophile unit
* 70-90% effective on Lp's and 15-30% effective on most vintage records
* Unique "distortion limiting" circuit prevents unit from acting on music
* Suitable for home, professional CD mastering, or broadcast use
* Film coupling capacitors assure low TIM and transparent sound
* Works with phono, tape outputs - any source
* Professional quality design and construction
* 19" rack mount standard at no extra cost
* Gold-plated RCA connectors
* Very low distortion & noise
* Stereo or mono


CLICK FOR: MANUAL   CLICK FOR: REVIEWS

Price:  $486.00 (IL Res. add 8.25% IST) + $23.25 Shipping  (with case, $26.50) SHIPPING

 


SPECIAL COMBINATION PRICEREK-O-KUT DEHISSER + SURFACE NOISE REDUCER:  $760.00 (IL Res. add 8% IST) + $31.95 SHIPPING

"...those 2 products are the best thing ever bought for my turntable other than cartridge..."
"
The SNR and Dehisser...Excellent pair, perfect for anyone serious about good sound and the vinyl hobby"


CEDAR STUDIO 8 RESTORE®

STATE OF THE ART VST PLUG INS FOR MANY DIGITAL AUDIO RECORDING AND EDITING SOFTWARE

BOTH PC & MAC AVAILABLE
 

This is a suite of computer applications that work within your digital audio recording/editing software programs.  They are VST Plugins, and work very much like the filters and equalizers supplied with most digital editors.   Most digital editing softwares accept VST plugins. 

REQUIRMENTS: You will need a 64 bit computer and 64 bit process (not just compatible) Digital Audio Editor, such as Adobe Audition (cloud based), modern ProTools, or even free, Audacity 3.1.3 or Reaper (https://www.reaper.fm).  Forget ProTools First - no VST!

DELIVERY: Mac and WINDOWS users will receive the software via download, and receive an iLok key for iLok Licence Manager.  You will have to obtain an iLok dongle.  For more iLok details, click HERE.  read the manual(s) HERE.


"Studio 8 is far better than the (hardware versions).  Especially...Auto Hiss is a serious tool indeed. I am very happy with the results"
 

 

 


"I’m still using the CEDAR SYSTEMS I bought from you 2 and half years ago....fantastic"
 

CEDAR Audio perfected audio restoration in the 1980s.  CEDAR automatically noise prints thousands of time a minute.  RESTORE is a combination of eight favorite restoration tools into a single package: CEDAR Studio Restore.

Record from your tape or disc source to digital, and do the noise reduction later, and be able to change settings as your project progresses.  Insert CEDAR into a multitrack while combining from various sources.  This allows you to balance noise levels if dealing with disparate sources.
 

 

 

Eliminate clicks easy

DECLICK offers better impulsive noise detection than any other declicker. This performance is so good that, in most cases, it's not possible to hear that the signal was damaged prior to restoration.

Remove frying bacon & crackle

DECRACKLE Removes all manner of ground-in and grungy crackle without damaging the wanted audio. It can also remove many forms of buzz and distortions from material ranging from cylinder recordings to studio lighting buzz.

Automatic dehissing that really works

AUTO DEHISS embodies an advanced algorithm that is far less susceptible to the 'underwater sound' often found in other noise reduction software.  It automatically determines the noise content and removes it without introducing unwanted artifacts. A manual mode is also offered for fine-tuning the results.

Eliminate buzz and hum

DEBUZZ easily removes buzzes and hums with fundamentals as high as 500Hz, and it can eliminate harmonic components across the entire audio spectrum.  It will track varying tones without unwanted side-effects such as the hollow sound introduced by comb filters.

Reconstruct clipped audio

DECLIP 2 removes clipped samples and reconstructs the original signal, improving clarity, distortion, and  original dynamic range.  teven tracks the clipping amplitude so that already compressed material can still be restored.  Does wonders with "blasted" mics and grossly clipped solos.

Control dynamics with a natural sounding, unique limiter

ADAPTIVE LIMITER constrains the peak level of the output while retaining the integrity of the input, resulting in a more natural audio than processed using other limiters. It is ideal for mixing, final mastering and other creative duties

Remove extended clicks and scratches (Pro Tools only)

MANUAL DELCLICK  is ideal for restoring the extended scratches and clicks encountered on film, tape or disk media.  Its dual processes, optimized for long clicks and scratches, will remove noises found on optical soundtracks, as well as drop-outs and extended digital errors.

Removing bumps and thumps (Pro Tools only)

Dethump eliminates the thumps that accompany many large clicks.  It replaces the unwanted sound with restored low frequency audio, and is the ideal tool for removing many noises from optical soundtracks, cylinders, 78rpm discs, and even bumped stands.

Price:  $2,197.00 (IL Res. add 8.00% IST) + $23.50 Shipping 
 

Listen to LP, RCA LSC-2433     Good 78, COLUMBIA 67837 Bad 78,
COLUMBIA 14147-D
AFRS
TRANSCRIPTION