Sonnox Fraunhofer Codec Toolbox Manuale Utente

back to contents6.1.1 NMR MeterThe NMR METER (Noise to Mask Ratio) provides an indication of the frequency areas where the difference between the cod

back to contents6.1.2 Bit-stream OVERS MeterAny form of filtering can, under certain circumstances, increase the peak level of the signal. If your in

back to contents6.1.3 Channel ConfigurationIn most DAW hosts, the Codec Toolbox plug-in can automatically detect the number of channels whether it is

back to contents6.1.6 Internal Buffer SizesFor most codecs, the plug-in uses internal buffer sizes of 1024 samples for up to 48kHz operation and 2048

back to contentsWhen you have decided on suitable codec settings, and optimised your mix/master levels accordingly:1. Bypass or disable the Codec Tool

back to contents7 The Codec Toolbox ManagerThe Codec Toolbox Manager is an application, bundled with the Toolbox Plug-In, primarily intendedfor encodi

back to contents5. Occupying the top right hand area of the screen is the Metadata Editor. If a supported M4Aor MP3 file is selected, any metadata it

back to contents7.1.2 Finding Audio Files on your SystemThe Folder Browser includes a feature designed to help locate audio files on your system. Thu

back to contents7.1.3 Supported File TypesThe Manager supports the following file types:• M4A AAC (including AAC-LC, HE-AAC and MPEG Surround)• MP3•

back to contents7.2.1 Selecting Multiple Files – Batch ProcessingIt is possible to select multiple files in the File List, for encoding/decoding to t

Contents1 Introduction...

back to contents7.3 Encode-Decode SectionThis section occupies the lower-middle area of the Toolbox Manager window. It provides information about the

back to contents6. Encode/Decode Button. If a WAV or AIFF file is selected, this button will be in ENCODE mode. If a supported M4A or MP3 file is sele

back to contents7.3.3 DecodingThe Manager can also decode compressed files for import into a host sequencer (or for general purpose decoding). To dec

back to contents7.5 The Metadata EditorThis section describes the features and operation of the Manager’s Metadata Editor, which occupies the right h

back to contentsWhen an MP3 or M4A file is selected in the File List (single-click), any supported metadata it contains is imported into the Metadata

back to contents7.5.2 Supported Tag FormatsThe Manager provides the ability to add and modify metadata in files with an ‘mp3’ extension, and some fil

back to contents7.5.3 Supported TagsThe list of available tags varies between MP3 and AAC files due to the different metadata specifications of each

back to contents7.5.4 Editing Text TagsIn order to edit a text tag, click on the tag row in the Metadata Editor. This opens an inline text field;type

back to contents7.5.6 Importing Tags from Another FileAny audio files that contain metadata are listed in the File List with a small arrow button in

back to contents7.5.7 Saving and Loading Metadata PresetsMetadata tags can be saved into presets for later use. To display the metadata presets manag

back to contents1 IntroductionThe Sonnox Fraunhofer Codec Toolbox is designed for real-time auditioning of audio signals by theFraunhofer codecs, in a

back to contentsTo save a new metadata preset, press command+S (Mac) or control+S (Windows), or press the PLUS button that appears on mouse over in th

back to contents7.5.8 The Metadata Lock MechanismIt is important to remember that the changes performed in the Metadata Editor are not written to the

back to contents8 Keyboard ShortcutsGlobal Context Mac WindowsProcess File(s) (encode or decode) Command+P Control+PWrite metadata to selected file Co

back to contents9 Workflow ExampleThe first thing to do after launching the Codec Toolbox Manager, is load your uncompressed WAV/AIFF audio files. Thi

back to contents10 Specifications10.1 Metadata Text EncodingText encoding formats are a way of describing the internal byte representation of indivi

back to contents10.2 Sample Rate and Bit DepthThe Codec Toolbox plug-in and Manager support sample rates of 32, 44.1 and 48kHz.The input to the encod

back to contentsMP3 – StereoCBRBit rate(kbps)CodecSample rate (kHz)VBRBit rate(kbps)CodecSample rate (kHz)80 44.1112 32128 44.1 130 44.1160 44.1 150 4

back to contentsHE AAC V2 – StereoAt all bit rates, the codec operates at 32 kHz – there is no resampling.iTunes+ (Stereo only)CBRBit rate(kbps)Codec

back to contentsMP3 – StereoCBRBit rate(kbps)CodecSample rate (kHz)VBRBit rate(kbps)CodecSample rate (kHz)96 32 96 44.1112 44.1 130 44.1128 44.1 150 4

back to contentsHD AAC – MonoAudition not available. Plug-in output = input.HD AAC – StereoCBRBit rate(kbps)CodecSample rate (kHz)VBRBit rate(kbps)Cod

back to contents2 Supported Codecs and FormatsMajor codecs supported:• MP3• AAC-LC• HE-AAC• HE-AAC v2• MPEG Surround• Apple AAC (iTunes Plus; Mastered

back to contents10.3.3 Sample Rate: 48 kHzMP3 – MonoCBRBit rate(kbps)CodecSample rate (kHz)VBRBit rate(kbps)CodecSample rate (kHz)56 3264 3280 32 84

back to contentsAAC LC – MonoAt all bit rates, the codec operates at 48 kHz – there is no resampling.AAC LC – StereoAt all bit rates, the codec operat

back to contentsiTunes+ (Stereo only)CBRBit rate(kbps)CodecSample rate (kHz)VBRBit rate(kbps)CodecSample rate (kHz)256 44.140

back to contents11 Copyright and AcknowledgementsThe Sonnox Fraunhofer Codec Toolbox plug-in and Manager were developed by the design team at Sonnox

back to contents12 Commercial use of mp3 contentIt is important to distinguish between the use of codecs and the use of content produced by the codec

back to contents13 Supported Platforms• Avid Pro Tools (RTAS, AAX 64-bit)• VST hosts (32 and 64-bit)• AU hosts (32 and 64-bit)• Mac Intel OSX 10.6 or

back to contents3 Summary of Codec Features and ApplicationsMP3General purpose audio codec, compatible with most players.Typical bit rate: 128 kbps (

back to contents4 TerminologyBit rateNumber of bits transmitted or processed per unit of time. This is expressed here in kilobits per second, or kbps.

back to contents5 Codec DetailsApple AAC iTunes Plus (Mastered for iTunes) (Mac only)The addition of the Apple AAC codec allows real-time audition of

back to contents6 The Codec Toolbox Plug-InThe primary purpose of the Codec Toolbox Plug-In is to provide a way of monitoring your host session materi

back to contents2. Click inside the CODEC SELECTOR to reveal the codecs, modes and bit rates available for the current sample rate and plug-in channel