Specifications

Of course, if you select one of the fixed rates (

44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz),

the actual rate will be the same as the rate you select.

Note that when an H8000FW is connected by FireWire to a running computer, the

Source parameter cannot be changed – you should change it from your DAW or other

application to be sure that they remain the same. They may also be changed from the

computer Control Panel, but this may cause trouble with some applications.

 See Miscellaneous Setup Options on page 138 for other sync options.

The Status of The Digital Inputs When Using the Internal Clock

When using the internal clock, the sampling rates

of the signals at the digital inputs must be exactly

equal to that of the internal clock (unlikely) or

sample rate conversion must be turned on under

the "bottom" clock menu page in the setup area.

The upper right-hand side of the clock menu page in the SETUP area displays the status

of the digital inputs. DIN 1/2 reflects the status of the digital inputs 1/2 (either

AES/EBU 1/2 or S/P DIF 1/2 depending on DIN 1/2 on the inputs menu page). DIN

3/4 reflects the status of the digital inputs 3/4 and so on. Not surprisingly, ADAT reflects

the status of the ADAT input.

The status of the digital inputs will be

slipping signals are present, but their sampling rate is close to but not locked to the

system sample rate. As described above, this may cause clicks or distortion. When the

external signal is very close to the internal rate, the status indicator may flicker between

slipping and OK. Some slipping may be acceptable for monitoring or other non critical

applications, but in general, the greater the difference between the system sample rate and

that of the digital input, the greater the distortion. Of course, you can always just turn on

the sample rate converter for the AES/EBU 1-4 and S/P DIF 1-2 inputs. No sample rate

conversion exists for the other external inputs so these should not normally be used if

slipping.

OK signals are present, and their sampling rate is locked to the internal clock rate. All is

good !

unlocked either no signals are present, their sampling rate is very unstable, or

something is dreadfully wrong with them.