Pure Vinyl - Digital LP playback, editing and archival; high-resolution digital music server

Pure Vinyl

Digital LP playback, editing and archival; high-resolution digital music server (Channel D Pure Music is included for FREE with Pure Vinyl)

Channel D  Channel D

Stereophile - 2010 Product of the Year Award Winner
The Absolute Sound - 2013 Product of the Year Award Winner

Channel D  

Stereophile - 2010 - 2015 Editor's Choice Recommended Components

Channel D  Channel D

The Absolute Sound - 2014 Editors' Choice Award Winner
The Absolute Sound - 2015 Editors' Choice Award Winner

Pure Vinyl 4 includes more than 60 new features and user interface and performance improvements over Pure Vinyl 3.

Just a few of the new features added in Pure Vinyl 4:
  • New free-form Track Name / Track Time entry window
  • Simplified Recording Setup user interface
  • New Album List shows all recorded albums
  • New Seek to Preset Side and Track when a recording is opened
  • New Time Remaining feature assists recording: alerts to stylus reaching end of album side
  • New Sound Looping for easier, faster fine-tuning of track marker locations
  • New, super fast automated track creation using the Auto Track Finder and Track Name and timings entered during recording
  • New Snap Stylus To Track feature for easier track editing
  • New Tidy Tail feature automatically trims silence at ends of tracks
  • New Render Each Album Side as Single Track option
  • New Normalize Using Per-Track Peak Levels

Linking analog LP playback with the precision of high-resolution digital music reproduction
  • LP Playback / Recording / Editing / Archival
  • Precision Optimized 64-Bit RIAA Vinyl Correction Curve (IIR design, with phase response identical to analog RIAA correction)
  • Directly links audiophile caliber analog vinyl playback and the advantages of high-resolution (192 kHz / 24 bit) digital audio reproduction and recording / archival
  • Single point of integration for analog and digitally sourced music
  • Supports 192 kHz 24 bit Sampling for State of the Art, High-Resolution Digital Quality
  • Painstakingly Designed to Preserve the Warmth, Clarity and Dynamics of Vinyl Reproduction
  • Pristine, 64 bit (Double Precision) Floating-Point Internal Signal Path for No Added Distortion 6
  • Helps Optimize Turntable Setup by Providing a Repeatable Baseline: Just Record and Compare
  • Unique, "Scratch" Style, Grab & Spin "Vinyl Cueing" Nondestructive Audio Editor
  • Cueing Trigger "Noise Gate" feature Automates Recording Process; Just Lift Stylus and Flip the Record
  • High Quality 64-Bit Sample Rate Converter for Exporting CD Format Tracks to Digital Players (iTunes, iPod, CD-R)
  • ZEPHRR® Zero Phase Shift 64-Bit Rumble Filter for Resampling; Adjustable Frequency, up to 96 dB / octave slope
  • Adjustable Noise-Shaped Dithering for Word-Length Reduction
  • Built-In Correction Curves for pre-1955 Vinyl / Shellac
  • NetSend for Streaming Audio to Other Computers (up to 192 kHz, 24 bit, uncompressed)
  • Nondestructive, Integrated Pop and Click Editor / Peak Finder
  • Ultra High Quality Integrated Multithreaded Sample Rate Converter
  • Virtual Line-Level Preamplifier / Source Selector (for audio interfaces with more than 2 analog input channels)
  • Built-In 2/3/4-way Crossover (with 64 bit internal resolution and Adjustable Time / Phase Alignment) (for audio interfaces with more than 2 output channels)
  • AudioUnit Plug-In Support (add parametric / graphic EQ, etc.)
  • "Picture Disc" Feature (Integrate Album and Label Artwork with Vinyl Image)
  • Space-Saving Rendering of Virtual iTunes "Bookmark" Tracks For Playlists from Vinyl Recordings (Without Creating Separate Physical Tracks)
  • Also Built-In: Channel D's Acclaimed Pure Music Digital Music Player

Comments from Pure Vinyl users    |

Playing LPs with Pure Vinyl

Playing LPs with Pure Vinyl
The PLAY mode of Pure Vinyl was designed to closely recreate the experience of vinyl playback. Just as in the editing process, the stylus can be dragged and dropped anywhere on the surface, to cue a particular track. This is made simple by employing the spinning vinyl record metaphor. To flip the record, juct click on the label. Records with more than two sides (double, triple, etc. albums) can be used with the player - each click moving to a different side of the next disc.

Pure Vinyl also can automatically "flip" the record at the end of the side - for uninterrupted playback in "album" format.. but better, because there's no stylus wear with repeated play, nor a vinyl surface to scratch. Every play sounds like the first one - at super quality 192 kHz 24 bit.

Recording LPs with Pure Vinyl

Recording LPs with Pure Vinyl

The Pure Vinyl Recorder application was designed from the ground up specifically for creating high-resolution, archival quality transcriptions of your precious records - at sample rates and resolutions up to 192 kHz / 32 bit.

Naturally, the Pure Vinyl Recorder can apply precision RIAA EQ in software... high-quality output is provided for flawless monitoring while recording, using the software-based EQ, if desired.

The adjustable, threshold-based triggering feature doesn't start recording until the needle drops - and even can be configured to omit that "needle drop" part of the recording. When the tonearm is lifted at the end of the side, the triggering pauses the recording, giving you the opportunity to flip the record, clean the other side, grab a snack, etc. At this time, the application is "deaf" to incoming audio. When ready to resume recording, just click the Lock button, re-arming the recording.

Pure Vinyl scrupulously maintains a high-quality 64-bit floating-point (double precision) processing path from the moment that the sound is sampled, through the entire downsampling operation, and on to monitoring and playback, to insure that you don't lose any of your precious sound.

Downsampling (decimation), if creating track files in other formats is desired, is properly performed, using widely vetted techniques. For example, 192 kHz audio is first upsampled and zero-padded, then antialias filtered and decimated.

All sound file formats used are lossless: AIFF or Apple's CoreAudio (.caf). The latter format permits recordings of unlimited duration with any sample rate or sample size. Exporting sound files to 16-bit (or 24 bit) 44.1 kHz CD format is done using Apple Lossless Compression (to .m4a) or AIFF. If lossy (mp3, aac) compression is needed, the pristine audio files can be compressed by converting via iTunes.

Editing Digitized LPs with Pure Vinyl

Editing Digitized LPs with Pure Vinyl
The inherent surface noise of vinyl makes track cue assignment difficult, because music fades are contaminated with surface noise. Linear-style waveform editors are not quite up to the task of working with digitized vinyl. Using apparently quiet waveform locations as track boundaries, without careful auditioning of selected marks, is likely to result in track marking mistakes.

Pure Vinyl uses a patented "virtual vinyl" cue guide image generator coupled with a DJ-inspired "scratch" technique where the record is "grabbed" and "spun" to accurately locate cueing points. A Looping feature allows precisely honing or verifying the locations of track intros and fade-outs.

Pure Vinyl's proprietary SNAPTO Automatic Track Locator, not found in any other software product, makes quick work of the potentially tedious task of locating track cue-ins. LPs do not fade to "digital black" between tracks, making track location much more difficult than editing purely digital recordings. However, our specialized track locator algorithm handles this difficult task with aplomb. Likewise, the Tidy Tail feature automatically trims silence from the ends of tracks, even in the presence of gradual fade-outs in recordings.

Fixing Vinyl Flaws in Pure Vinyl

Fixing Vinyl Flaws in Pure Vinyl
Pure Vinyl incorporates features to streamline this tedious (but ultimately rewarding) task. Iconic overlays applied to the vinyl image accurately depict audible blemishes and peaks. Interpolation and sample cloning can be used to clean them. The peak finder is invaluable in setting proper levels. Just click on a peak in the list (generated automatically during vinyl rendering) and the record rotates and stylus moves to the exact location of the peak / pop on the disc image.

"Fixed" edits can be incorporated nondestructively during playback of high-resolution master transcription (if used). Pop fixes can be applied when exporting individual tracks. Again, the original file is preserved, and you always can go back and modify your edits.

Third party software can be used with Pure Vinyl music files for overall restoration or noise reduction, if desired.

The peak/pop editor also can be used to "calibrate" the "rotational speed" of the vinyl image. Turntables are subject to rotational speed error. However, the periodic nature of the scratches on the record surface can be used to advantage. At 33 1/3 RPM, a scratch or blemish across two or more grooves will be repeated at an interval of exactly 1.800 seconds. A future release of Pure Vinyl will incorporate this into precision pitch correction of exported music files (that is, when we are satisfied with the quality of the resampling algorithm we are developing).

After track assignment is complete, the individual tracks can be exported automatically as AIFF or Apple Lossless Compressed sound files for incorporation into digital music players, such as iTunes. Alternatively, track edits can be used with Pure Vinyl's powerful, patent-pending "bookmark" track feature in iTunes that points to the master recording file, allowing incorporating vinyl tracks into iTunes playlists without needing to waste disk space on separately rendered track files.



Try Pure Vinyl 4 FREE for 15 Days!

Pure Vinyl 4 is free to users who purchased a Pure Vinyl license after January 2013 (an announcement was posted here October 2013).

Previous purchasers can upgrade at the discount price of $139. The transaction ID from your previous purchase (including Pure Music to Pure Vinyl upgrades) is used as the coupon to obtain the $139 price upon checkout.

System requirements:
Mac OS X 10.5.8 or later (including Yosemite / OS 10.10); G4, G5 or Intel CPU.

Pure Vinyl Reviews

"...pay attention to the digital RIAA's finesse and robust attacks - particularly in the bottom octaves - and its unerring tonal neutrality... lifting of veils from music... Listen and that's what you're sure to hear, without an additive penalty in terms of the usual digital edge and etch... Pure Vinyl plus peripherals offers a relatively inexpensive way to achieve an extremely high level of vinyl playback."
Michael Fremer, Stereophile August 2010 Read review - purchase issue

"...the most efficient LP-to-PCM digital transfer system I've used." Click Here to Download a Copy of the Review Steven Stone, The Absolute Sound - December 2013

"...it has not only met my expectations, but exceeded them." Click Here for Review Larry Borden, Dagogo - May 2014

" the results were stunning- some of the quietest, best sounding vinyl playback I have ever heard." Nels Ferre, enjoythemusic.com - March 2010

"One of the nicest and most feature-laden software packages for transferring LPs to digital files." Steven Stone, The Absolute Sound - February 2009 (Issue 190)

Pure Vinyl User Comment

"Wow. It is hard to explain what I am enjoying more... the vinyl recordings or the quality of the Pure Music upsampling through the TC Impact Twin. I am glad I stayed on the path and bothered you so much. What a pay off. My HDCD player is now second class. The quality even exceeds the SACD player I just had on loan. The output from your software just matches up with my vintage system components in a very synergistic way. I do not have top of the line stuff but you have helped take the old stuff to an entirely new level.

"I ended up dismantling the tonearm wire that came with my tonearm. I added the XLR connectors with the resistors you recommended. Dead quiet. My Thorens 125th anniversary compilation recording was the first recording. Vinyl has always been my best quality source and that quality is a memory with the RIAA curves applied by the computer. Thank you very much,
- Peter Bliss

Pure Vinyl Features

High-Quality Playback - Pure Vinyl applies an extremely accurate inverse - RIAA vinyl correction curve in real-time during playback. Your music is reproduced as accurately as possible, by eliminating the distortion and frequency response errors of analog based hardware.High Quality Playback Using Software RIAA Correction does not "reduce resolution." Technical "white paper" presented at the Audio Engineering Society (AES) Convention in 2007 and explained on FAQ.

Sample 192 kHz / 24 bit snippet of "Fever," from the new "Elvis is Back!" 45 RPM 2-disc Analogue Productions reissue LP, rated "10" for sound quality by musicangle. Edited from a "Flat" 192 kHz transfer to digital using a Seta® Model L preamplifier and Lynx audio interface. RIAA correction via Pure Vinyl SRC "pass through" setting, and Pure Vinyl's adjustable 72 dB / octave ZEPHRR® zero-phase-shift subsonic filter. If your system cannot currently play 192 kHz natively, here is a 44.1 kHz version, downsampled with Pure Vinyl's high-quality SRC. Both samples are in Apple Lossless format.

Recording - Pure Vinyl was designed specifically for creating high-resolution, archival quality transcriptions of your precious vinyl, at sample rates up to 192 kHz (or higher). Pure Vinyl automatically can downsample and mirror to CD or DVD-A formats during recording, for digital jukebox use. Pure Vinyl uses standard audio file formats: AIFF, Sound Designer II, m4a (losslessly compressed) and Apple CoreAudio format (either uncompressed or losslessly compressed).

Revolutionary Editing/Exporting - Pure Vinyl uses the "scratch" style, grab-and-spin metaphor employed by professional DJs, with "needle drop" track cueing. It's an intuitive, fun way to assign track markers - instead of being unnecessarily tedious, as with conventional, linear-style waveform editors. After editing, individual tracks automatically can be extracted and exported from the original file.

Peak Detection / Normalization / Pop and Click Removal - Pure Vinyl incorporates features to streamline this tedious (but ultimately rewarding) task. The built-in peak finder and waveform inspector is useful for setting proper normalization levels.

Feature Pure Vinyl Amarra Vinyl
License Price $299 $289 (sometimes sold for $99)
Number of Computers per License UNLIMITED see footnote 1 ONE
Integrated Computer Audio Player Software Included Channel D's award winning Pure Music, with DOZENS of additional, unique features including DSD playback, is Included for FREE NO
One-Click DSD DAC Setup in Player Software yes DSD Audio Playback Not Supported by Amarra
Upgrade Path from Standalone Audio Player Software Difference in Price Between Pure Music and Pure Vinyl Not Available
Customer Support Free (email, telephone, and Remote), Unlimited Free (email and telephone), for first 30 days only
Customer Support Cost ALWAYS FREE After 30 days, $85 per incident
Remote Session Customer Support / Setup Assistance FREE (anywhere in the world) $129 per hour
Runs on Intel AND PowerPC (G5) Mac Computers yes  
Designed from scratch for the express purpose of recording and integrating vinyl with digital audio YES Repurposed audio recording / editing software
Supported Sample Rates for Analog to Digital Conveters (ADCs) 44.1, 48, 88.2, 96, 176.4, 192 kHz 96, 176.4, 192 kHz
Supports Built-In Audio Input yes Yes, but must create Aggregate Device; and only supports 96 kHz sample rate
Pop / Click Removal yes yes
Sound Restoration Via Inexpensive Third Party ClickRepair Software see footnote 2 yes
Maximum Recording Time At 192 kHz / 24 bit Unlimited (available hard drive space) 62 minutes (less than most double and some single LPs) because uses AIFF, WAV or BWF for recording, which are limited to 4 GB file size
Audio Output Level Normalization yes yes
Broadcast Standard LKFS Perceived Loudness Normalization yes  
Automatic Normalization to Per-Track Peak or Loudness Levels yes  
"Flat" Recording Option with Real-Time RIAA Compensation Curve In Software yes  
Conventional, Linear - Style Waveform - Based Track Editor yes yes
Patented, Intuitive Vinyl Image Cue Guide Track Editor yes  
Track Export to AIFF/Apple Lossless; 16/24 Bit; optional 96/88.2/48/44.1 kHz Sample Rate Converter yes  
Multi-threaded Track Processing Fully Uses All CPU Cores for Fast Throughput yes  
ZEPHRR® Zero-Phase-Shift Rumble Reduction Filter for Track Export yes  
Automatic Signal Level Triggering for Easy Recording Automation yes  
Automatic "Snap - To" Track Cue-in Finder yes  
Automatic Track Location and Assignment yes  
Automatically Trims Silence at End of Tracks yes  
Sound Looping Editor with Automatic Gain Riding yes  
Jump to Album Side command yes  
Peak Clipping Monitor / Overs Counter yes  
Input Channel Balance Control yes  
Optionally Records to Lossless Compressed (ALAC) File Format yes  
Create iTunes Bookmark Tracks (patent pending) for Playback (saves disk space) yes  
Supports Audio Plug-Ins yes  
Real-Time EQ During Live Vinyl Playback yes  
2/3/4-way crossover feature yes  
Application File Size see footnote 3 Less than 8 MB Greater than 35 MB
User's Guide 49 pages plus version release notes 136 pages plus index
Demo 15 Day 15 Day


1. The license to Pure Vinyl permits installing the software on more than one computer, provided:
(a) All computers are used for personal, not business or company use;
(b) The person who purchased the software license owns all of the computers;
(c) Only one copy of the software is running at any time, per purchased license.
Note: The NetSend feature does not require Pure Vinyl to be installed or running on the receiving computer. See the Pure Vinyl User's Guide for more information.

2. Pure Vinyl users with a need for automatic sound restoration usually turn to third party applications such as ClickRepair or DeNoise, which cost just $40 each and can be used to process audio recordings made by Pure Vinyl. In addition, click and noise removal is far more effective when used in conjunction with "flat" recordings (RIAA compensation applied in software), a key feature of Pure Vinyl.

3. For reference, Adobe Photoshop CS 7 is 45 MB; and Adobe Photoshop is a very complex application! Pure Vinyl is built with tight, optimized code, written from the ground up for this specific purpose, and still maintains a lightweight size of less than 8 MB in spite of its many features. Not bloatware!

---- Note: our products may only be used for the reproduction of materials that the user is legally permitted to reproduce.