Release Notes and Roadmap

Release notes

Version 1.0
Initial release of Stereo Sauce

Version 1.1
Enabled support for 24-bit files in Home version.
Added downward dynamic-range expansion for needle-drop recordings with Groove Sleuth preamplifier.

Version 1.2
Added support for quad-rates (176.4kHz/192kHz) in Audiophile, Tonmeister and Demo versions

Version 1.3
Adds Pop-Click Filter option for Phonograph Equalisations, selected via 'Preferences > Settings'
Adds stand-alone Pop-Click Filter - (Audiophile, Tonmeister)
Fixes application crash when analysing EBU R128 loudness metrics for long audio files - (Audiophile, Tonmeister)
Enables Dither option for Home version
Changes OS X deployment target to 10.10 - (OS X Yosemite was released on October 16, 2014, as a free update through the Mac App Store worldwide)
Fixes problems with slider controls on Mac OS 10.10.4

Version 2.0

Released Stereo Lab Phonograph version, for phonograph enthusiasts and record collectors
Added Modes into main GUI for grouping related enhancements

• RIAA Needle Drops - (Audiophile, Phonograph)
• Historic Equalisations - (Audiophile, Phonograph)
• CD Equalisations - (Audiophile)
• Stereo Shuffling - (Audiophile, Phonograph, Tonmeister, Home)
• Beyond Shuffling - (Audiophile, Phonograph, Tonmeister)
• Headphones - (Audiophile, Phonograph, Tonmeister, Home)
• Surround Upmix - (Audiophile, Phonograph, Tonmeister)
• Microphone Processing - (Audiophile, Tonmeister)
• Quadraphonic Decode - (Audiophile)
• Ambisonic Decode - (Audiophile, Tonmeister)
• Digital Recovery - (Audiophile, Phonograph, Tonmeister, Home)
• Noise Reduction - (Audiophile, Tonmeister)
• Effects - (Audiophile, Tonmeister)

• FRANCINSTIEN T-Sym - (Beyond Shuffling mode)
• Phonograph EQ E (vintage) - (Historic Equalisations mode)
• Phonograph EQ F (Flat) - (Historic Equalisations mode)
• Phonograph EQ S (Displacement) - (Historic Equalisations mode)
• CD De-emphasis - (CD Equalisations mode)
• Hum Removal - (Noise Reduction mode)
• Hum Removal Bass Compensation - (Noise Reduction mode)
• Cinema Surround 5.1 - (Quadraphonic Decode mode)
• Cinema Surround 5.0 - (Quadraphonic Decode mode)
• Hi-Res - (Digital Recovery mode)
• Unlimiting - (Digital Recovery mode)

• Phonograph Regime
• Half Speed Needle Drop - (NEW)
• Gain Ranging
• Cartridge Channel Balance - (NEW)
• Pop-Click Removal
• Crackle Removal - (NEW)
• LP Distortion Cancellation, with stylus radius selection - (NEW)
• Needle Scratch Removal
• Pspatial Rumble Filter
• Hum Removal, with optional Bass Compensation - (NEW)

Version 3.0

Product renamed Stereo Lab

Features added:

• Phonograph equalisation EQ G for 78 records without pre-emphasis
• Phonograph equalisation EQ H for 78 records with moderate pre-emphasis
• Phonograph equalisation EQ G for 78 records with extreme pre-emphasis
• Phonograph equalisation EQ K for use with ceramic cartridges
• Addition of GRAδIENT advanced noise-reduction for shellac era discs

Features added:

• Added 'JVC CD-4 Quadraphonic’ as an enhancement option within the 'Quadraphonic Decode' group
• Added 'JVC CD-4 Quadraphonic' processing: input matrix, subcarrier, FM discriminator, RIAA, level-matcher, output matrix
• Show a warning message when no RADAR is detected during JVC CD-4 decode
• Show an error message if JVC CD-4 processing is attempted on a file which is not 96kHz
• Added 'JVC CD-4' preferences tab, with options for:
  • - Input: Cartridge Channel Balance
  • - Subcarrier: PHLUX-II Crosstalk Compensation
  • - Baseband: Pop-Click Removal, Pspatial Rumble Filter, Hum Removal, Bass Compensation
  • - Output: Pspatial Audio CD-4 decode, Rears as Subcarrier

Version 3.1.9 ENGINEERING RELEASE (ALL VERSIONS - not Demo)

Features added:

• Enable 'CD De-emphasis' for Phonograph, Tonmeister, and Home versions
• (Engineering only) Fix progress refresh issue with Xcode 10.1.

Version 3.1.10 - ENGINEERING RELEASE (ALL VERSIONS)

• Use system colours in table view which work in both 'Light Appearance' and 'Dark Appearance'. (The ‘Completed’ black text was almost impossible to read when ‘Dark Appearance’ was selected in System Preferences > General > Appearance...)

Version 3.1.11 - ENGINEERING RELEASE (ALL VERSIONS)

• Ensure that quad rate sample speeds are writen into file headers for AIFF/AIFF-C formats

Version 3.1.12 - ENGINEERING RELEASE (ALL VERSIONS)

• Wind-Up processing added (33.3RPM to 78/68/89 RPM speeds)
• Enable wind-up options in the 'Capture Speed' popup
• Calculate new file duration (shown on GUI) for wind-up options, including when Demo restrictions apply

Version 3.1.13 - ENGINEERING RELEASE (ALL VERSIONS)

• Added 'High-Quality CD-4 Quadraphonic' processing

Version 3.1.14 - ENGINEERING RELEASE (ALL VERSIONS)

• Upgrade to Xcode 10.2.1
• Added 'Matrix H Quadraphonic' processing

Version 3.1.15 - ENGINEERING RELEASE (ALL VERSIONS)

• Added 'Phonograph EQ P3 (Virtual MM RIAA preamp)' - (Audiophile, Phonograph and Demo versions)
• Fixed bug with destination folder not always following the source folder when files from different locations are processed together

Version 3.1.16 - ENGINEERING RELEASE (ALL VERSIONS)

• Added 'Cat 22 (Dolby A) Noise Reduction' - (Audiophile, Tonmeister and Demo versions)
• Added 'Disc Echo Removal' (Audiophile, and Demo versions)
• Update to Xcode 11.3 (from 10.3) giving support for Catalina 10.15.2

Version 3.1.18 - ENGINEERING RELEASE (ALL VERSIONS)

• Upgraded to Xcode 12.0 and Catalina 10.15.6

Version 3.1.19 - ENGINEERING RELEASE (ALL VERSIONS)

• Added 'Tape equalisation correction' (Audiophile, and Demo versions)
• Upgraded to Xcode 12.4 and Big Sur 11.0.1
• Added installer package notarization

Version 3.1.21 (Date: 2022-03-16) ENGINEERING RELEASE (ALL VERSIONS)

• Upgraded OS to 11.6.4 (from 11.2.3), and Xcode to 13.2.1 (from 12.5.1)
• Format dates for FRAN chunks as 'YYYY-MM-DD HH:mm:ss +ZZZZ' whatever the system date format is (12-hour or 24-hour)
• Update _expiryDate for Demo to 2023-03-17

Version 3.1.22 (Date: 2022-10-16) ENGINEERING RELEASE (ALL VERSIONS)

• Save ID3, BEXT and IXML chunks when analysing WAV and AIFF/C files so that this information can be included in audio metrics before the file is processed
• Free buffer for calculating R128 Maximum True Peak (LUFS) as early as possible
• Fix buffer overrun error when processing quad-rate files
• Update _expiryDate for Demo to 2023-10-17

Version 3.2.0 (Date: 2022-11-19) - ENGINEERING RELEASE (ALL VERSIONS)

• Set error_invalid_compression_type when the WAV type is unsupported. (For example, IEEE floating point.)
• Added 'Mach ONE' noise reduction as stand-alone filter
• Added 'Mach ONE' noise reduction as an option for Phono EQ and CD-4, available from preferences
• Prevent 'CD-4 Quadraphonic Subcarrier Processing' from sticking at 20% if there is no RADAR for CD-4
• Update _expiryDate for Demo to 2023-11-11

Version 3.2.1 (Date: 2022-12-04) - ENGINEERING RELEASE (ALL VERSIONS)

• Fixed bug in pop-click removal algorithm for the difference track
• Added 'Wind-up from 25 to 33.3 RPM' into the 'Capture Speed' options for Phono EQ
• Update _expiryDate for Demo to 2023-12-05

Version 3.2.2 (Date: 2023-06-04) - ENGINEERING RELEASE (ALL VERSIONS)

• Improve accuracy of R128 loudness range calculation
• Fixed Aria 2.0 enhancement attenuation factor
• Update copyright year to 2023
• Update _expiryDate for Demo to 2024-06-05

Roadmap - planned enhancements in future versions*

• ³/₄ Speed needle-drops - Planned for Ver. 3.n
• Tertiary (TMX) decode for UMX quadraphonic - Planned for Ver. 3.n
• Ability to bypass RIAA correction in CD-4 baseband process (for strain-gauge cartridges) - Planned for Ver. 3.n
• Wavelength loss compensation in LP replay - Planned for Ver. 3.n
• Support for dbx encoded LPs - Planned for Ver. 3.n
• API for Stereo Lab - Planned for Ver. 5.n
• Stereo Lab Equaliser - Planned for Ver. 3.n
• WOW! Pitch correction (first version, shellac discs only) - Planned for Ver 3.n
• Loading the Center channel in a CD-4 decode with signal from a virtual front-facing cardioid - Planned for Ver. 3.n
• ID3v2 tag editing - Ver. 3.n
• Support for Apple Lossles files - Ver. 4 or beyond
• Temporary or limited licences for Stereo Lab Tonmeister & Audiophile - Ver. 4 or beyond
• B-format input for Ambisonics decode - Ver. 4.n or beyond
• New recording characteristics - Ver. 3.n and beyond
• Support standard cartridges in cartridge-compensation - Ver. 4 or beyond
• Dolby C decoding - Ver. 3.n
• Decode CD-4 to Ambisonics B-format

* Future Looking Statements: This page includes predictions, estimates or other information that might be considered forward-looking. While these forward-looking statements represent our current judgment on what the future holds, they are subject to risks and uncertainties that could cause actual results to differ materially. Please keep in mind that we are not obligating ourselves to revise or publicly release the results of any revision to these forward-looking statements in light of new information or future events.

Links

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For Pspatial Audio sales, email: sales@pspatialaudio.com