Audibax M88 DSP Dante handleiding
Handleiding
Je bekijkt pagina 7 van 106
the signal to 42dB, the new signal only includes 17-bit information. Due to gain
attenuation, 7-bit information will get lost forever. More worse is the clipping distortion.
For a signal nearly close to 0dBFS, the signal will be clipped at 0dBFS and the audio
distortion will occur. Even if the signal level is adjusted to below 0dBFS through
post-regulation, the clipping has occurred, and the distortion still exists. Fixed point
processing can help to create some headroom above 0dBFS. By doing so, some bits have
to be abandoned. For example, if a 12dB (2 bits) headroom is created, a 24-bit system
actually only has 22 bits.
Floating-Point Processing
In the contrary, by taking advantage of floating-point processing, no matter what the
signal level is, all available bits are uniformly distributed to the signals. Basically, the
floating points use some bits as indexes to set up general signal level and distribute the
remaining bits to signals with independently stored level. As a result, no matter what kind
of level (from - 200dB and 200dB below to 0dBFS above, the stored signal's accuracy is
optimized without clipping distortion. SHARC provides 32-bit and 40-bit accurate
processing; through 32-bit processing, 25 bits are distributed to storage signals no matter
what its signal level is. This means that, based on at least 1-bit low level signal, its accuracy
is always significantly superior to 24-bit fixed point processing. Through expanded 40-bit
accurate processing, 33-bit storage signal can be achieved.
Practical Significance
What's the practical significance of floating point processing for the users? The gain
stages between multiple modules can be ignored. If the signal level of a module is
reduced by 50dB and is then restored to its original value through another processing,
data loss will not occur. In the fixed-point system, the users must check other signal levels
before sending it to A/D converter because all digital-to-analog converters adopt fixed
points. In DSP system, if you notice that your signal has been clipped before it is
outputted and transmitted to the digital to-analog converter, you may close it off
immediately at the output section to correct the situation. By using the fixed point
system, you have to search each processing module to find the clipping source.
M88 DSP / M88 DSP Dante
www.audibax.com 5
Bekijk gratis de handleiding van Audibax M88 DSP Dante, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Audibax |
| Model | M88 DSP Dante |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 13294 MB |
