title pro

The swiss army knife of sound editing

  • Amadeus Pro is a powerful multitrack audio editor supporting a variety of formats including MP3, AAC, Ogg Vorbis, Apple Lossless, AIFF, Wave and many others. Click on one of the thumbnails below to see a larger version of it.

    multitrack editor

    Multitrack Editor

    Amadeus Pro is a fully featured multitrack editor. Each track can have its volume and panning adjusted independently from the others. Each track can be split into multiple audio clips that can easily be dragged independently of each other. Furthermore, Audio Units can be applied to individual tracks in real-time without requiring any destructive editing.

    batch processing

    Batch Processing

    There’s that whole collection of files that you wanted to convert to Mp3, but you first wanted to normalize them and make them fade in and out nicely. Several hours of work in perspective? Let Amadeus Pro do the work for you! The powerful batch processor allows you not only to convert large numbers of files between any of the supported formats, but you can also instruct Amadeus Pro to apply any sequence of sound effects.

    repair centre

    Repair Centre

    The handy repair centre allows you to find and to repair cracks with a simple click of the mouse. Furthermore, Amadeus Pro’s powerful denoising functions allow you to easily get rid of that annoying hiss on your old tape recordings or of that 50Hz hum picked up by a badly insulated microphone.

    What do users of Amadeus Pro say about it?

    I just completed a show in Las Vegas for the acclaimed producer Jean Ann Ryan. [...] She needed me to be able to edit and playback on the fly for three days, to include a live show on the third evening. Normally I’d use Pro Tools, but this time I decided to give Amadeus Pro a try. Not only was I able to to give Jean Ann everything she asked for, edit after edit, I even ran the entire live show from it. I used two macbooks, (one as a back-up). We did the show which was 42 minutes flawlessly. I was amazed! Thanks Martin! Great job! Keep up the good work, I’m sold!
    - Rob Kaz
    [Amadeus] has an amazing breadth of abilities, combining serious power with delightful simplicity, at an astonishingly low price. To use it is to love it.
    - Matt Neuburg, TidBITS
    Amadeus Pro takes an already excellent program to a whole new level. With a completely revamped interface, large file editing capabilities, and multi-track functionality, amongst many other new features, Amadeus Pro is an incredible sound editor.
    - Joshua Wachs, Macintosh News Network
  • This page contains a non-exhaustive list of features of Amadeus Pro. It is intended to give you a flavour of its amazing possibilities, but of course nothing is worth the real thing, so please, by all means, download it and try it out by yourself. Don’t forget that a manual is available from the “Help” menu in the program.

    Convert vinyls or tapes to CD

    • Amadeus Pro’s powerful denoising and repairing functions make it easy to remove that annoying hiss on your favourite tape recordings or the scratch on that old vinyl recording.
    • Split your recording into multiple tracks with one handy function, for use by iTunes for example.
    • Burn your recording to an Audio CD straight away from within Amadeus Pro with a simple click of the mouse.
    • Dedicated equalizers make it easy to get the original sound back from very old recordings.

    Powerful batch processing functions

    • Converts to and from the following file formats: Amadeus, AIFF, WAVE, Mp3, Ogg Vorbis, Mp4, M4a (AAC and Apple Lossless), FLAC, Apple CAF, QuickTime, SoundDesigner II, Next, Mp2 (reading only).
    • Allows you to apply arbitrary sequences of sound effects to a collection of files.
    • Preserves metadata (artist, song title, album cover, etc) even across formats, provided that the format supports metadata.

    Sound effects

    • Full support for both Audio Unit and VST audio Plug-Ins means that the functionality of Amadeus Pro can be extended and tailored to suit your particular requirements perfectly.
    • The most commonly used effects (multiband graphic equalizers, volume normalization, fade in/out, echo, speed and pitch change, etc) are built into the program and therefore benefit from a nice MacOS X - like user interface.
    • Amadeus Pro allows you to maintain a list of favorite actions, so that your commonly used tasks are always only one mouse click away.

    Analyzing functions

    • Create high quality sonograms or spectrum analyses for professional or amateur use.
    • The many real-time analysis tools of Amadeus Pro make it the perfect pedagogical tool for explaining the physics of sounds.
    • Extensive waveform statistics.
  • Please click any question below to see the answer.

    • Is Amadeus Pro compatible with OS X 10.8?

      Yes, starting from version 2.0.6. If you are using an earlier version, please upgrade to the latest version. The old version, Amadeus Pro 1.5.5, also runs on Mountain Lion.

    • What is your upgrades policy?

      Registered users of Amadeus Pro 1.x can purchase Amadeus Pro 2.x for $39.99 instead of the full price of $59.99 here. They will be issued with that special registration code that only works together with a valid registration code for Amadeus Pro 1.x.

      As a general rule for future upgrades, minor upgrades will always be free of charge to existing users. I reserve myself the right to charge for major upgrades, but existing users of the latest version before a major upgrade will always get a substantial discount.

    • What are the differences between Amadeus Pro 1.x and Amadeus Pro 2.x?

      The main differences are:

      • Tracks can now be split into multiple audio clips on the same timeline.
      • Audio Units can be applied to tracks in real-time without requiring destructive editing.
      • Smart editing prevents the occurence of cracks when copy / pasting sounds by inserting short crossfades at the cutpoints. (Can be turned off.)
      • The overall look of the user interface (and in particular the level-meters) has been greatly improved.
      • Video tracks are preserved when editing the audio track of a QuickTime movie, which makes Amadeus Pro incredibly handy for amateur movie producers.
      • Mp3 / Mp4 / AAC files are not reencoded if only metadata is modified. This prevents the loss of sound quality and makes the saving much faster.
      • Amadeus Pro can now record directly from Mp3 and Ogg Vorbis internet streams.

      There are many more small differences between the two. The only way to get a true feeling for it is of course to download Amadeus Pro 2.0 and to give it a try.

    • Why didn't I get a license key?

      If you purchased Amadeus on the Mac App Store, you will not be issued with a license key. Indeed, applications purchased on the Mac App Store do not require a license key to run. If you still have the demo version of Amadeus installed on your computer, you can simply move it to the trash bin and then reinstall it from within the Purchases tab of the App Store application.

    • I purchased Amadeus Pro in a MacLegion bundle. Can I get a better deal?

      Yes! Since you purchased Amadeus Pro before the first of April, you are entitled to purchase version 2.0 for $19.99, which is just the price difference between version 1.x (which was part of the bundle) and version 2.0. Please contact me from the email address you registered with MacLegion to ask for a discount voucher.

    • Is there an educational discount available?

      Yes, a 25% discount is available for students. Just send an email from your university address to Martin@HairerSoft.com asking for a discount coupon.

      It is unfortunately not possible to offer educational discounts through the Mac App Store, so this voucher only works on the HairerSoft webstore.

    • Can I still download version 1.x of Amadeus Pro?

      Yes, you can still download version 1.5.5 by clicking on this link.

    • What happened to my Audio Units?

      Some Audio Units have not been compiled for 64 bit yet, and so they will not be recognised by Amadeus Pro by default. First, you may want to check on your plug-in's manufacturer's website: chances are that there is already a 64 bit version available. If not, you can launch Amadeus Pro in 32 bit mode: select it in the Finder, hit command-I (Get Info...) and check the "Open in 32-bit mode" option.

    • Can I transfer my Amadeus Pro license to another computer?

      Yes, just download Amadeus Pro to the new computer and reenter the license code that you received when you first purchased Amadeus Pro. If you lost your license code, please send me a short note from the email address used when originally purchasing the program.

    • Why are CD track names all wrong on CDs burned by Amadeus Pro?

      They only appear so in iTunes. The reason is that instead of correctly reading the CD-TEXT information contained on the CD (which is what a CD player does), iTunes tries to be smart and queries an online database (Gracenote) that tries to recognise the CD based on the lengths of the tracks. Chances are that your home-made CD will be matched with some completely unrelated commercial CD that just happens to have the same (or similar) track lengths, thus the resulting garbage. Apart from lobbying Apple to fix that bug (feature?) of iTunes, there's not much that one can do. To be fair, one possibility would be to burn the CD as a data CD instead of an Audio CD, but then most CD players wouldn't play it.

      As you can guess from the explanation, this problem is not specific to Amadeus Pro at all. It is just the same if you burn the CD with iTunes or any other other CD burning software.

    • Why does Amadeus Pro refuse to create an Mp3/AAC file from my recording?

      This can happen if you try to create a high-quality compressed file from low-quality uncompressed audio, which is something that you would not want to do on purpose. Just decrease the bitrate in the Mp3/AAC settings to a lower value.

    • Can Amadeus Pro record the output from another program?

      Not without any third-party software. The free programs SoundFlower and Jack OS X allow you to route the output of any program (like iTunes for example) into Amadeus Pro for recording. Please refer to the corresponding programs for instructions or look at Section 13.4 in the manual.

    • What are the terms of the user license?

      You can find the terms of the single-user license here and the terms of the site license here. The upshot is that the single-user license is valid for one user (so if you and your partner use it that would require two licenses) but can be used on up to three different computers (so if you have a desktop computer at home and a laptop for travelling, you can have the program installed on both).

    • Could you add a key shortcut for function XYZ?

      Go to the "Keyboard and Mouse" system preferences panel. On MacOS 10.3 and later, it allows you to assign key shortcuts to arbitrary menu items.

    • Isn't it possible to undo actions in the repair center?

      Yes it is! The reason why the "Undo" menu item can be grayed out is just because it applies to the frontmost window, which should be the sound window. So, just select the sound window and you can undo as usual. You can also use the handy 'z' key shortcut (no command, just 'z') to undo and 'Z' to redo.

    • The sliders for the record levels are greyed out and the input level is inappropriate, why?

      These sliders directly control the hardware. Therefore, they are only active if your hardware actually does provide gain control and the driver of your hardware implements it correctly. If your particular hardware doesn't support it, there's nothing that one can do about it. You should be careful to adjust the level of the signal to the correct level before it reaches your hardware (or using the controls of the hardware if it has some). Also, make sure that you are actually using the correct sound input device. You can check whether a particular device supports gain adjustement with the "Audio MIDI Setup" application in your Applications/Utilities folder (select the device and check whether the input sliders there are greyed out).

      Note that the iMic has a little black switch that allows you to switch between microphone level input and line-in level input. Make sure that this switch is in the appropriate position.

    • Do you accept PayPal payments?

      Yes, if you purchase Amadeus Pro by clicking on the Store link, you will see that PayPal is one of the accepted means of payment.

    • Amadeus attempts to make an internet connection at startup! What the heck?

      Occasionally, Amadeus makes an http query to see whether a new version is available. What happens is exactly the same as what happens when you click on this link and this link (i.e. it just retrieves two pieces of text). If you are concerned about this or choose not to believe what I say, you can disable version checking in the "Updates" section of the Amadeus Pro preferences.

    • Is there a manual for Amadeus Pro?

      Yes! Select the menu item "Amadeus Pro Help..." in the "Help" menu. You can also download the manual here.

    • I cannot open m4p files purchased on the Music Store with Amadeus, why?

      Apple decided to forbid third-party applications the access to m4p files. One workaround is to play the files in iTunes and to use Jack to record the output from iTunes. Another workaround is to burn the file on an Audio CD and to open it from there.

    • What is an RIAA curve?

      In general, vinyl recordings are engraved with reduced bass levels and increased treble levels. In 1954, the RIAA (Recording Industry Association of America) introduced a standard filter that was used on nearly all phonograph recordings since then. The filter "RIAA" available from "Filters" in the "Effect" menu allows to compensate this filter in order to reproduce vinyl recordings in the correct way.

  • To download one of the software packages available on this page, just click on the corresponding link, the download should start automatically.

    Download Amadeus Pro 2.1 for Mac OS X 10.6 or later



    Older versions

    Unfortunately, Amadeus Pro does no longer run on Mac OS X 10.5 and earlier.

    Amadeus Pro 2.0.8 is the last version to run on Mac OS X 10.5 and is available here.

    Amadeus Pro 1.x will run on Mac OS X 10.4 and is still available here.

    Amadeus Pro supports a variety of Plug-Ins. It is compatible with the popular VST format, as well as with Apple’s Audio Units. A few free Plug-Ins can be downloaded below.

    Note that the software available further down on this page has not been developed by HairerSoft. User reports indicate that these Plug-Ins are compatible with Amadeus Pro but no exhaustive testing has been performed.

    Free Audio Units

    A collection of free Audio Units can be downloaded by clicking on the following link:




    You can find more free plug-ins at destroyFX, at Sound Consulting, and on Michael Norris's website. Hundreds of other VST and Audio Unit plug-ins are available from third-party vendors.

    Free VST Plugins

    A collection of free VST plugins can be downloaded by clicking on the following link: