64-bit audio processing. Necessity or redundancy
Here viewed advantages and disadvantages of different bit resolutions (16, 24, 32 bit, ... integer and floating point) of digital audio processing.
Remark: AuI ConverteR 48x44 use 64-bit floating point audio processing for all versions
16-bit integer processing
Advantages
1. Fast mathematics.
2. Low occupied hard disk and random access memory (RAM) space.
Disadvantages
1. High noise level (about -110 ... -120 dB)
2. Low number summarize / multiply steps for achieving overflow.
3. Is not optimal bit size for 32- and 64-bit processors of computer - central processor unit (CPU).
24-bit integer processing
Advantages
1. Low noise level (about -150 ... -160 dB)
Disadvantages
1. Is not suitable bit size for 32- and 64-bit CPUs.
32-bit integer processing
Advantages
1. Very low noise level (about -170 ... -190 dB)
2. Fast mathematics.
3. Fastest access to RAM (for 32- and 64-bit CPUs).
3. Is optimal bit size for 32- and 64-bit processors of computers.
Disadvantages
1. Restricted number summarize / multiply steps for achieving overflow.
32-bit floating point processing
Advantages
1. Fast mathematics (for math co-processors).
2. Fastest access to RAM (for 32- and 64-bit CPUs).
3. Very low noise level (below -190 dB)
Disadvantages
1. Restricted number summarize / multiply steps for achieving overflow, but more then integer.
64-bit integer processing
Advantages
1. Very low noise level (below -190 dB)
3. Fastest access to RAM (for 64-bit CPUs). Optimal bit size for 32- and 64-bit processors of computers.
Disadvantages
1. Restricted number summarize / multiply steps for achieving overflow (then for floating point resolutions).
2. More significant accumulated rounding errors (than for floating point resolutions).
64-bit floating point processing
Advantages
1. Almost not restricted number summarize / multiply steps for achieving overflow (then for floating point resolutions).
2. Very low noise level (below -190 dB)
3. Fastest access to RAM (for 64-bit CPUs). Optimal bit size for 32- and 64-bit processors of computers.
Disadvantages
1. Most slow calculation performance.
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