Sonnox Fraunhofer Pro-Codec - Manual (Page 79)

9.3 Codec
Specifications 9 SPECIFICATIONS
Encoder HD-AAC
Channel
Configurations Mono, Stereo, 5.1
Sample
Rates
(kHz) 44.1, 48, 88.2, 96, 176.4, 192
Bit
Rates
(kbps) Variable (lossless)
Limitations Supported
oversampling
modes:
1 for input sample rate 44.1 or 48kHz
2 for input sample rate 88.2 or 96kHz
4 for input sample rate 176.4 or 192kHz
9.3.2 Codec
and
Session
Sample
Rate
The Plug-In and many of the codecs are sensitive to the session sample rate and channel
configuration.
The Plug-In supports a wide variety of host DAW applications, and understandably many
of these applications provide differing amounts of session configuration settings to a
plug-in. Some applications only present session configuration information to a plug-in
when there is an active audio data stream (i.e. the transport is set to play).
As a result of this, care must be taken when:
• selecting codec settings after switching a session sample rate or channel
configuration
• when loading a Preset that was saved from a session that used a different
configuration
Session loads/restores in Pro Tools, Logic, Cubase and Nuendo are immune from this
problem.
It is possible in some applications that a newly instantiated Pro-Codec has not been
provided with current session data. If this is the case, when a codec configuration is
selected (manually or via a preset load) that is incompatible with the real session
configuration, then the Plug-In could receive incompatible data when playback starts. In
all cases, the Plug-In will endeavour to match the requested codec settings, and where
possible will select the closest compatible settings. By preference, the substitute codec
will be of the same type, but using the closest compatible bit rate. Where the codec
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