RME Audio ADI-6432(r), Руководство пользователя

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User's Guide ADI-6432R BNC © RME
13. Application Examples
13.1 Digital AES-3id Multicore
The ADI-6432 is perfectly suited to build up a digital AES multicore. Up to 64 channels can be
realized, transmitted via MADI optical cable lossless and undisturbed to places in a distance of
up to 2.000 meters.
The amount of the total delay from AES to AES depends on the current sample rate.
32 - 48 kHz 64 - 96 kHz 128 - 192 kHz
4 samples 7 samples 13 samples
13.2 Digital AES-3id Breakout Box
As MADI from/to AES/EBU converter the ADI-6432 is an ideal breakout box for RME's HDSP
MADI PCI card. The application breakout box/computer unveils a delay, the so called
offset
between playback and recording. If a signal is played back from the MADI PCI, and recorded
again via MADI by performing an AES loopback, the record track will show a specific delay
against the playback track. The reason for this is that the HDSP MADI does signal its own offset
to the application, but not the ones of externally connected devices – which it can't know any-
way.
The following table lists the offset. The values listed here can be entered manually into many
programs, thus giving sample-synchronous simultaneous record/playback functionality. At Dou-
ble Speed and Quad Speed the values rise.
32 - 48 kHz 64 - 96 kHz 128 - 192 kHz
4 samples 7 samples 13 samples
7 samples at 96 kHz equal 73
µs.
4 samples at 48 kHz equal
83 µs.
13 samples at 192 kHz
equal 68 µs.