Radioboss Alternative Mac

Ready for macOS Catalina and the switch from iTunes to Music Radiologik is a system suitable for both live DJing and 24/7 radio automation on the Mac that uses iTunes (or Music in macOS Catalina) as its database and those playlists as the logical building blocks for sophisticated programming. RadioBoss RadioBoss works with Windows. The software can convert and manage audio assets, build playlists, hourly blocks, and rotations, and has crossfade as well as automatic leveling capabilities. Cost: Free trial, $199.95 for Standard version; RadioDJ RadioDJ runs on various versions of Windows.

ReplayGain is a proposed standard published by David Robinson in 2001 to measure and normalize the perceived loudness of audio in computer audio formats such as MP3 and Ogg Vorbis. It allows media players to normalize loudness for individual tracks or albums. This avoids the common problem of having to manually adjust volume levels between tracks when playing audio files from albums that have been mastered at different loudness levels.

Although this de facto standard is now formally known as ReplayGain,[1] it was originally known as Replay Gain and is sometimes abbreviated RG.

ReplayGain is supported in a large number of media software and portable devices.

Operation[edit]

ReplayGain works by first performing a psychoacoustic analysis of an entire audio track or album to measure peak level and perceived loudness. Equal-loudness contours are used for to compensate for frequency effects and statistical analysis is used to accommodate for effects related to time. The difference between the measured perceived loudness and the desired target loudness is calculated; this is considered the ideal replay gain value. Typically, the replay gain and peak level values are then stored as metadata in the audio file. ReplayGain-capable audio players use the replay gain metadata to automatically attenuate or amplify the signal on a per-track or per-album basis such that tracks or albums play at a similar loudness level. The peak level metadata can be used to prevent gain adjustments from inducing clipping in the playback device.[2]

Metadata[edit]

Alternative

The original ReplayGain proposal specified an 8-byte field in the header of any file. Most implementations now use tags for ReplayGain information. FLAC and Ogg Vorbis use the REPLAYGAIN_*Vorbis comment fields. MP3 files usually use ID3v2. Other formats such as AAC and WMA use their native tag formats with a specially formatted tag entry listing the track's replay gain and peak loudness.

ReplayGain utilities usually add metadata to the audio files without altering the original audio data. Alternatively, a tool can amplify or attenuate the data itself and save the result to another, gain-adjusted audio file; this is not perfectly reversible in most cases. Some lossy audio formats, such as MP3, are structured in a way that they encode the volume of each compressed frame in a stream, and tools such as MP3Gain take advantage of this for directly applying the gain adjustment to MP3 files, adding undo information so that the process is reversible.

Target loudness[edit]

The target loudness of ReplayGain utilities is 89 dB sound pressure level.[note 1] The SPL reference comes from a SMPTE recommendation used to calibrate playback levels in movie theaters.[note 2]

A more common means of specifying a reference level is relative to a full-scale signal. ReplayGain nominally plays at -14 dB relative to full-scale leaving 14 dB of headroom for reproduction of dynamic material. In contrast, the SMPTE RP 200:2002, on which the ReplayGain reference was originally based, recommends 20 dB of headroom. The more recent EBU R 128 suggests 23 dB.[6]

Track-gain and album-gain[edit]

ReplayGain analysis can be performed on individual tracks, so that all tracks will be of equal volume on playback. Analysis can also be performed on a per-album basis. In album-gain analysis an additional peak-value and gain-value, which will be shared by the whole album, is calculated. Using the album-gain values during playback will preserve the volume differences among tracks on an album.

On playback, listeners may decide if they want all tracks to sound equally loud or if they want all albums to sound equally loud with different tracks having different loudness. In album-gain mode, when album-gain data is missing, players should use track-gain data instead.

Alternatives[edit]

  • Peak amplitude is not a reliable indicator of loudness, so consequently peak normalization does not offer reliable normalization of perceived loudness. RMS normalization is more accurate, but does not take into account psychoacoustic aspects of loudness perception.
  • With dynamic range compression, volume may be altered on-the-fly on playback producing a variable-gain normalization, as opposed to the constant gain as rendered by ReplayGain. While dynamic range compression is beneficial in keeping volume constant, it changes the artistic intent of the recording.
  • Sound Check is a proprietary Apple Inc. technology similar in function to ReplayGain. It is available in iTunes and on the iPod.[7]
  • Standard measurement algorithms for broadcast loudness monitoring applications have recently been developed by the International Telecommunication Union (ITU-R BS.1770) and the European Broadcasting Union (EBU R128).[6]

Implementations[edit]

Radioboss

Audio players[edit]

  • AIMP, Windows[8]
  • Amarok, KDE desktop environment. Native ReplayGain support was added in Amarok 2.1.[9][10][11]
  • Audacious, Unix-like systems and Windows
  • Aqualung Music Player, Linux and Windows
  • Banshee, Linux
  • Clementine, Windows, Mac OS X and Linux
  • cmus, Unix-like systems
  • Cue Broadcast Audio Player, Windows[12][failed verification]
  • DeaDBeeF, GNU/Linux, *BSD, OpenSolaris and Mac OS X[13]
  • Exaile, Linux/GNOME desktop environment
  • FLAC, the reference FLAC decoder can create a new copy with ReplayGain applied, through the undocumented option --apply-replaygain-which-is-not-lossless as of version 1.1.1[14]
  • foobar2000, Windows
  • hunisPRO automation system, Windows[12]
  • JRiver Media Center, Windows[15][failed verification]
  • JavaTunes, Windows, Linux and Mac OS X[16]
  • Kodi, cross-platform
  • MediaMonkey, Windows
  • Mixxx virtual DJ software, v1.9.0 and up
  • madplay, Unix-like systems
  • Mpg123, supported for only Xing/Lame/Info header
  • MPD, Unix-like systems
  • Muine, GNOME desktop environment
  • MusicBee, Windows
  • Nightingale, Linux, Mac OS X, Windows
  • Play, Mac OS X[17]
  • Pocket Player, Windows Mobile,[18] through the ReplayGain DSP plugin[19]
  • ProppFrexx ONAIR, Windows[20]
  • Pulsar+, Android
  • Qmmp, cross-platform[21]
  • Quod Libet, Unix-like systems. Reads ReplayGain metadata natively. Has a plugin to analyze and write ReplayGain information.
  • QuuxPlayer, Windows
  • RadioBOSS, Windows radio automation software[22]
  • Rhythmbox, GNOME (through a plug-in)
  • Songbird, Windows and Mac OS X
  • SoX, cross-platform[23]
  • Squeezebox hardware and accompanying SlimServer/SqueezeCenter software from Slim Devices
  • VLC media player, multiplatform. Reads ReplayGain metadata natively
  • Winamp, Windows
  • XMMS, Unix-like systems with X11. Supports ReplayGain for Vorbis; for MP3 files, a patched version of the xmms-mad plugin which only supports APEv2 is available[24])
  • XMMS2, Unix-like systems
  • XMPlay, Windows[25]
  • Zortam Mp3 Media Studio, Windows[26]

Portable media players[edit]

  • All devices with a working Rockbox port[27]
  • SandiskSansa Fuze and Sansa Clip+[28]
  • iPod through other programs that convert ReplayGain data to the Apple proprietary Sound Check format (e.g. iPod Manager for foobar2000, other alternatives elsewhere on this page)

Typical CD players and other legacy audio players do not support ReplayGain.

Android compatible players[edit]

  • DeaDBeeF[29]
  • foobar2000 for Android
  • GoneMAD Music Player[30]
  • Neutron Music Player[31]
  • MyTunes[32]
  • PowerAMP[33]
  • Vanilla Music[34]
  • Winamp PRO for Android[35]
  • Vinyl Music Player[36]
  • XenoAmp Music Player[37]

Scanners[edit]

  • beaTunes: Writes the standard replaygain_track_gain/replaygain_track_peak tags and replaces the iTunNORM metadata tag value, which is used by iTunes software and iPod music players for Sound Check volume normalization.
  • Ex Falso: Included plugin scans files on a per-album base, writes the standard tags into metadata.
  • FLAC and metaflac: Encoder can optionally generate metadata. Tagger generates metadata.
  • foobar2000: Generates metadata through included plugin using EBU R128 (but at old 89 dB levels) for all supported tag formats.[38]
  • LAME: Encoder writes metadata to LAME tag
  • MediaMonkey: Analyze Volume calculates RG values and writes them into the files as tags and into its library database
  • MP3Gain: (open source) generates metadata. Can directly modify original file and write undo information as metadata.[39]
  • QuuxPlayer for Windows: calculates gain values and saves them in its library database; optionally writes ReplayGain tags to files with ID3v2 tags.
  • Quod Libet: Based on Ex Falso. Generates metadata through included plugin to analyze and write ReplayGain information
  • Rapid Evolution: Generates metadata
  • soundKonverter:[40] frontend for various audio conversion tools. Is built using KDE Development Platform and has a ReplayGain tool.
  • Winamp: Generates metadata

Streaming[edit]

  • Spotify[41]

Notes[edit]

  1. ^Although the original proposal specified an 83 dB SPL reference, an early departure from the proposal to 89 dB SPL was endorsed by its author.[3]
  2. ^Specifically SMPTE RP 200:2002 recommends an 83 dB SPL playback level for pink noise recorded at -20 dB with respect to a full-scale sine wave. ReplayGain uses -14 dB headroom and therefore has a reference 6 dB higher than the SMPTE spec.[4][5]

See also[edit]

References[edit]

  1. ^David Robinson (2010-12-17). 'ReplayGain Specification discussion'. Hydrogenaudio. Retrieved 2011-07-12.
  2. ^'ReplayGain specification'. Retrieved 2011-04-15.
  3. ^'Does Replay gain work differtly in Media monkey'. Hydrogenaudio. 2010-10-07. Retrieved 2010-12-30.
  4. ^Leslie, Rob (24 February 2004). 'Replay Gain'. mad-dev mailing list. mars.org. Retrieved 2007-03-10.
  5. ^'ReplayGain specification'. Retrieved September 13, 2011.
  6. ^ abEBU (August 2011). 'Loudness normalisation and permitted maximum level of audio signals'(PDF).
  7. ^Sam Costello. 'Using Sound Check with iPod'. About.com. Retrieved 2010-05-11.
  8. ^http://www.aimp.ru/index.php?do=features
  9. ^'Bug 81661 - Volume normalization for amaroK'. KDE Bug Tracking System. 2004-05-16. Retrieved 2010-12-30.
  10. ^'Amarok 2.1 – back to the future'. Padoca. 2009-02-15. Retrieved 2010-12-30.
  11. ^'Amarok 2.1 'Let There Be Light' released'. Amarok. 2009-06-03. Retrieved 2010-12-30.
  12. ^ ab'GASTEROPOD'. Archived from the original on January 29, 2009. Retrieved November 26, 2008.
  13. ^'DeaDBeeF - Ultimate Music Player For GNU/Linux'. Deadbeef.sourceforge.net. Retrieved 2016-07-29.
  14. ^'Does FLAC.exe decode support ReplayGain?'. Hydrogenaudio. 2004-01-07. Retrieved 2010-12-30.
  15. ^'Media Center'. Archived from the original on April 3, 2005. Retrieved January 7, 2006.
  16. ^'JavaTunes'. Stigc.dk. 2011-05-15. Retrieved 2011-11-24.
  17. ^'Play'. sbooth.org. Retrieved 2011-11-24.
  18. ^'Pocket Player 4'. Conduits. Retrieved 2011-11-24.
  19. ^'Pocket Player Plugins & Software Development Kit (SDK)'. Conduits. Retrieved 2011-11-24.
  20. ^'ProppFrexx ONAIR'. Proppfrexx.radio42.com. Retrieved 2011-11-24.
  21. ^'Qmmp Features'. Retrieved 2017-12-22.
  22. ^'RadioBOSS Web Site'. djsoft. Retrieved 2012-05-05.
  23. ^'SoX man page'. Retrieved 2011-11-24.
  24. ^'Modified xmms-mad'. 2005-03-06. Retrieved 2010-12-30.
  25. ^'XMPlay'. XMPlay. Retrieved 2011-11-24.
  26. ^'Zortan MP3 Media Studio'. Zortam. 2011-11-09. Retrieved 2011-11-24.
  27. ^'What is Rockbox? Why should I use it?'. Retrieved 2011-12-12.
  28. ^''Replay Gain' on Sansa Fuze, Fuze+ and Clip+'. Retrieved 2011-12-12.
  29. ^'DeaDBeeF Player'. Retrieved 2011-08-17.
  30. ^'GoneMAD Music Player'. Retrieved 2012-06-13.
  31. ^'Neutron Music Player'. Retrieved 2012-01-30.
  32. ^'MyTunes Music Manager'. Retrieved 2012-01-27.
  33. ^'PowerAMP v2.0'. Retrieved 2011-12-12.
  34. ^'Vanilla Music - Android Apps on Google Play'. Retrieved 2013-07-05.
  35. ^'WinAmp for Android'. Retrieved 2011-12-12.
  36. ^'A material designed music player for Android'. Retrieved 2020-01-09.
  37. ^'XenoAmp a Slightly Different Audio Player'. Retrieved 2017-04-26.
  38. ^'1.1.6 patch notes'. Retrieved 18 October 2012.
  39. ^'MP3Gain'. Hydrogenaudio. 2007-06-13. Retrieved 2010-12-30.
  40. ^https://github.com/HessiJames/soundkonverter/wiki
  41. ^Ian Stewart (October 24, 2019). 'Mastering for Streaming Platforms: 3 Myths Demystified'. iZotope. Retrieved 2020-10-28.

External links[edit]

  • ReplayGain at Hydrogenaudio wiki
  • Replay Gain – A Proposed Standard, the original proposal, now out of date with respect to current practice
  • Replay Gain in Linux — guide to using graphical and command line ReplayGain tools in Linux.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=ReplayGain&oldid=997655168'

Recommended Audio Software for Your Radio Station!

The following is a list of DJ Automation Encoders that StreamingPulse recommends. All of which are compatible with both SHOUTcast and Icecast (the ideal platform to use when choosing a streaming provider).

Free Encoders:

Winamp

With the Nullsoft SHOUTcast Source plugin – free. Recommended if you are new to Internet radio streaming. Runs on Windows. Click to download
SHOUTcast Source DSP Click to download

Mac

Radioboss Alternative Mac Free

MB Recaster

Windows freeware. Good replacement for Winamp, Edcast.
Click to download

Lunar Caster

For live broadcasting music. Includes various modules (Jingles, Calendar, Playlists, Events etc.). Runs on Windows.
Click to download

Butt

Free multi OS streaming tool. This is the best tool to use if you are using external equipment such as (DJ controllers, CD players, Mixers, etc.) It will stream and record from your MIC or LINE Input. It supports SHOUTcast and Icecast and runs on Linux, Mac OS X and Windows. It is NOT intended to be a server by itself or automatically stream a playlist of audio files. So you will still need an audio source.
Click to download

Radioboss Alternative Mac Keyboard

LadioCast

Radioboss Alternative Machine

Free for Mac OS X.
Click to download

PlayIt Live

Free for Windows. Requires Internet Broadcast plugin (e.g. AltaCast) to stream to SHOUTcast/Icecast servers.
Click to download

Mixxx

A FREE World class mixing engine with Auto DJ for Windows, macOS, and Linux.
Click to download

Paid Encoders

SAM Broadcaster

Sam Broadcaster is a radio automation software developed specifically for radio stations. It has a quality streaming DSP encoder that will allow you to connect to SHOUTcast v1/v2 or Icecast. This software can organize large music libraries quickly into multiple categories, import information from tags and automatically look up track information via Amazon.com.

The built in audio features like cross-fade detection, gap killer, volume normalization and 5-band compressor and limiter will make your radio station sound professional.

Requires a certain learning curve. Steep price in comparison to some free alternatives.

Costs $299. Runs on Windows.
Click to download

SAM Cast

$199. All in one solution for live streaming. Runs on Windows.
Click to download

Rocket Broadcaster

Free / $49 Pro. Our recommended encoder. Rocket captures audio from other applications, including Skype, Spotify, and your automation software, so you can seamlessly mix live interviews with music.
Click to download

StationPlaylist Studio
Mac

Designed for Pro Stations. Pro $239. Features general automation playback and live assistance tools for DJs.
Click to download

StationPlaylist Creator

Pro $239. Music and spot scheduling software. It is used to design your station format using rotations of music categories and spot groups (jingles, ads, etc).
Click to download

Zarastudio

$200.58. Not designed for Internet radio streaming, but it is a program that automates audio playback. Can be used along with other programs to broadcast an Internet station. Some of those programs are OddCast or WinAmp plugin. Virtual DJ.
Click to download

Virtual DJ

$299 for Commercial use. Free for non-commercial use. For commercial use, you will need to buy a commercial license. Runs on Windows and Mac OS X.
Click to download

Nextkast

$99 standard / $199 Pro. Runs on Windows.
Click to download

Megaseg

This is the Sam Broadcaster for MAC users. $99 standard / $199 Pro. Runs on Mac OS X.
Click to download

RadioBOSS

$119.95. Simple to use, lets you build sophisticated playlists with the professional features. Runs on Windows.
Click to download

RadioCaster

$49.95. Broadcast any audio that you have on your computer: support for audio capture from any computer input or playback device. Runs on Windows.
Click to download

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