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We transfer from almost any video or audio format to CD. We handle the early vintage 78 discs to wire recordings and just about anything in between. We can also transfer to any other supported format including even broadcast, home or even vintage & obsolete video formats.
To learn more about wire recordings:
To learn more about vintage 78 discs: Click Here...
Our philosophy is to employ the minimum amount of filtering required to reduce significantly reduce noise levels without the audio becoming "muddy". (Audio processing almost always involves a tradeoff between fidelity and noise). At your request we can deviate from that philosophy by employing more aggressive techniques where warranted. We can also enhance the original by heterodyning up mid-range frequencies to the high end (audio exciter), adding "warmth", increasing "hardness", equalizing, de-clipping, compressing or expanding.
Though digital processing can perform some near miracles, it does have it's limits. Records with excessively worn grooves where even a "sweet spot" no longer exists, can never be restored to pristine condition. There simply isn't enough good audio information remaining with which to work. Likewise, audio levels driven into severe clip or saturation pose similar results. We can run the audio thru a de-clipper that attempts to predict how the flattened top should look, but it's effective only in cases of minor clipping where it doesn't have to "guess" how much of the missing audio information might have looked.
Direct - Raw Transfer Only (Absolute minimal cost)
No restoration is employed - whatever was on the original source is accurately copied - including all the noise such as hisses, hum, clicks, pops, scratches, etc etc etc... The final CD is not broken down into tracks. It's one CD track of the entire recording. No Labeling - No Frills !
This is the least expensive type of transfer. It is the most effective means to get a precious recording preserved and archived at absolute minimal cost. It is also desirable by audiophiles who have their own restoration software but haven't the playback equipment to safely recover the audio stream from rare vintage formats, or for those who wish to experiment for themselves.
What it does give you is the best accurate copy of the master in a digital format for archiving or restoration at a later date.
Direct by Track
As above with no restoration applied, but the transfer is segmented into separate tracks before recording to CD for easy track selection.
Transfer & Global Restoration (Best overall value)
Includes both transfer and restoration of the master. First the separate audio tracks are copied to a hard drive then analyzed for the best overall restoration techniques to be employed for the entire final transfer. This level of restoration is quite effective for all tracks that came off the same record for example, as the type of noise encountered will most likely be consistent across the original disc.
For tracks spanning different sources, global restoration is usually not the best method, as the types of problems will all be quite different and thus a "one fix cures all" approach simply won't work well.
Transfer & Restoration by Track (Highest Quality)
Every track is separately analyzed and the best restoration technique and filters are employed for each individual track. As you can imagine, this is more labor intensive and costs are based upon the number of separate tracks to be restored.
Even though this is a business for us, it also remains a fun as well as rewarding experience, preserving vintage recordings. This site, though by no means a comprehensive resource, is filled with the basic information and understanding you'll need to get started off on the right track.
There are sections on turntable, cartridge as well as stylus selection as it pertains to vintage recordings as well as other tips . Read More ...
The following are two MP3 clips.
The first is a typical un-restored vintage 78 full of crackles, pops, rumble and hisses. Click Here to Listen....
The second is the restored version with the crackles, pops, rumble and hisses removed. Click here to listen.....
here are numerous filters and algorithm's that can be employed to clean up most types of audio noise. We analyze the disc and then select only the appropriate filter, thus preserving as much fidelity of the source as possible.
There are numerous filters and algorithm's that can be employed to clean up most types of audio noise.
We analyze the disc and then select only the appropriate filter, thus preserving as much fidelity of the source as possible.
Noise in some cases depending upon it's signature, can be sometimes completely eliminated. In other cases, we can only achieve noise reduction.
Types of Noise
|Clicks and ticks|
|Constant pitch noise|
|Motor brush Noise|
Audio Compression and Expansion can bring out "bland" vocals or greatly reduce harsh dynamics.
DeClipping is a process whereby the flattened tops of the waveform can be predicted to reduce the effects of the audio being recorded too "hot" and overdriven.
|Add lost high frequencies by heterodyning up Mid-range to high freqs. (exciter)|
|Add warmth - A tube-amplifier sound|
|Cylinder Correct the pitch or the speed of a recording Noise|
|Remove excessive low or high frequencies|
|Compress or Expand dynamic range|
|Give recordings a crisper, digital sound|
|De-Clipper - improve fidelity in mild cases of overdriven audio|
Damaged Discs -
that are cracked into 2 separate pieces,
are simply that: They are unplayable.
Poor Quality Masters -
The poorer the source material, the greater amount of processing
that must be done and thus more "muddying" of the material will result.
Like everything else in life, it's not a perfect world. There's a tradeoff
between the degree of noise noise reduction and fidelity. It's truly
amazing what can be done, but there are limitations. Even light to moderate
filtering will vastly reduce the amount of pops, clicks hisses etc on poor
material with very little negative effect on the overall fidelity. We can
often turn lead into silver or at least polished oak, but not into
Records with off-center holes will play with the pitch varying slightly
at each revolution. Correcting this defect is
included (note: it will require a
re-punch of the center hole)
if a record "skips" on your turntable, then
it'll most likely "skip" on ours. If the needle skips forward we will
just simply continue the transfer. If the stylus hangs up in place,
we will gently nudge the needle into the next groove. Cleaning up
skips is often labor intensive and is billed at our professional level hourly
rate. Please do not submit records that skip if these conditions are not
Severe Scratches -
Most vintage 78's
result in up to 100,000 clicks, pops and
scratches being eliminated. Most short transient clicks & ticks are
completely eliminated, without so much as a trace. If the scratch
is very deep, there will be a trace of a "pop" even in the restored version.
This is due to the stylus literally "taking flight" by getting launched
into the air. While "airborne", there will be no audio until it "lands"
again. The resulting transient is simply too long of a duration to
be cleanly filtered out. Put another way.... We can't filter out what isn't
there. Manual editing, re-grooving or waveform matching are the only solutions
and are billed at our professional level hourly rate due to the extensive
labor involved. Even so, it may never be perfect if the damage is too severe.
There are all types of distortions.
Over modulation at mastering, poor disc pressing, distorted vintage microphones,
worn records .... the list seems endless. Our restoration software
(or anyone else's for that matter) cannot distinguish between distorted
and clean audio.... even if it could, it would have no way of re-constructing
the data as there was no valid fidelity recorded to begin with. It's
somewhat akin to taking an out of focus photograph. There is no software
or technique that allows it to be "re-focused"... We can't cure something
out of what wasn't there in the first place. If your record sounds distorted,
then so will your restored copy.... It'll be much cleaner with the noise
removed.... but just as distorted.
Overdriven audio if not too severe, can often
benefit from de-clipping. If clipping occurred only on the highs (ie the
the top 5%) then de-clipping will be of benefit. Serious clipping where
more than 30% of the waveform is flattened off, will not benefit much from
being de-clipped. There's simply not enough information remaining to approximate
the correct top portion of the waveform.
Other Limitations -
Types of noise whose frequency distribution
falls within the spectrum of the human voice or program material, is difficult
or often impossible to remove. Current state of the art software cannot
differentiate between the two.
We can re-flatten many warped discs depending on the the
type of construction.
(Since this is risky; We re-flatten only to the degree necessary to allow half speed mastering)
In cases where a disc is partially cracked (assuming it's not a glass substrate) we can often re-align the two sections.
Last Modified: Oct 19, 209
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Northeast Region - New England