DDi Codec — for Dolby B/C NR 4+
Digital Equivalent Dolby-B/C
Chen Wang
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- $15.99
Screenshots
Description
Decoding/encoding Dolby B/C formatted audio in digital domain
DDi Codec is a precise digital emulation of the classic Dolby-B/C noise reduction system for analog audio tape. It is the world's first dedicated software for decoding or encoding Dolby-C formatted audio in digital domain, along with full backward compatibility with Dolby-B. Powered by the proprietary DSP engine, the decoding/encoding can be performed in realtime, which allows for instant processing, monitoring and fine-tuning.
Deeper optimal result can be achieved by using the fine-tuning tools that come with the software, as specified below:
• Reference Vernier: The primary tool for calibrating Dolby Reference Level in a progressive and interactive manner. It supports either objective calibration (with Dolby Tone) or subjective estimation (trial-and-error without Dolby Tone).
• Play Trim: Originally developed by NAD and Dolby, this tool compensates for signal degradation with aged pre-recorded tapes.
• Azimuth Correction: a limited-effect tool for remedying slight phase displacement and high-frequency loss caused by the azimuth error of the playback head.
• Gap-Loss Compensation: a limited-effect tool for counteracting slight playback head wear.
• EQ Converter: a utility for converting between IEC 120μs and 70μs EQ schemes, offering flexibility when the tape player/recorder lacks this option.
• Ref. Tone Generator: offers 400Hz 0dB signal at Dolby Reference Level for easy calibration.
Each of these tools can operate independently of the Dolby-B/C codec, which can be used for refining the audio digitized from analog audio tapes, regardless of whether Dolby NR is involved.
DDi Codec is a stand-alone GUI app without relying on any DAW host. It allows the computer to perform as a outboard Dolby-B/C NR unit in one of the following four scenarios:
• Audio-In to File (a digitizer/recorder).
• File to Audio-Out (a player).
• File to File (an off-line processor, with batch capability).
• Audio-In to Audio-Out (a through processor, with slight delay).
Currently supported audio formats are:
WAV, FLAC, AIFF: up to 96k/24bit.
MP3, AAC, M4A: up to 48k/VBRS.
* Excluding some proprietary variants having the common file extensions, or additional format-normalization may be required.
A VST plugin is also available after the app has been installed.
* Dolby-B and C are the tape noise reduction systems developed by Dolby Laboratories.
What’s New
Version 3.0.2
Moved recording source to the input end.
Ratings and Reviews
Amazingly flexible and effective tool for applying Dolby Noise Reduction to digital audio!
I am so thankful the DDi Codec exists. As an audio electronics engineer, I understand how complex Dolby can be, and I can tell that the developer of this app put in a lot of work to make it great. It sounds very accurate.
It's also a great learning tool for understanding Dolby NR. The in-app instructions for all the parameters and adjustments are explained very intuitively.
Also, the 120uS to 70uS converter that's included is very useful for anyone who wants to record with 120uS EQ onto Type II cassettes. I'm a big fan of this app, and I hope it stays functional and up-to-date for a long time. I also purchased the DxII codec for DBX encoding purposes.
Powerful yet simple, documented with care!
I'm picky about sound, but know nothing about cassette formats and have no gear to play a Dolby B tape correctly. DDi Codec is surpisingly approachable and flexible, it helped me get things closer to correct with the simple hardware I have.
Every single option is documented with practical explainations of how to use it! It's beautiful and so helpful! The docuntation doesn't just describe a button, it describes HOW and WHY it works the way it does, and tells you how to do things the best way (reference tones, etc.) or how to work with what you have.
Been looking for something like this for a long time.
First, finding a good hardware dolby-b, and dolby-c module has become incredibly difficult; so, when I came across this application, it definitely peaked my interest. Given its sheer capabilities, and the reasonable pricing, this application is well worth it.
App Privacy
The developer, Chen Wang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- Chen Wang
- Size
- 3 MB
- Category
- Entertainment
- Compatibility
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- Mac
- Requires macOS 10.10 or later.
- Languages
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English
- Age Rating
- 4+
- Copyright
- © Anaxwaves
- Price
- $15.99
Supports
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Family Sharing
Up to six family members can use this app with Family Sharing enabled.