NA INFO(3) 179
sampleRate
Sampling rate of data stream between host and DAT-Link. A setting of 0 indicates that no
-
p
sample rate conversion should be performed and the rate will be the same as the DAT sam
ling rate.
externalRate
Sampling rate of data between the DAT-Link and the digital audio device. For recording
d
4
this is a read-only value. For playback, the only allowed settings are 32000, 44100, an
8000.
precision Number of bits per sample. Valid choices are 4, 8, 12, 16, 20, 24, 28, or 32. Currently,
e
only 16 bits/sample are supported under all conditions.
ncoding Data encoding. Legal values for this field are NA_ENCODING_LINEAR,
N
NA_ENCODING_IEEE, NA_ENCODING_ALAW, NA_ENCODING_ULAW, and
A_ENCODING_CONTROL. Only NA_ENCODING_LINEAR is supported under all
c
conditions.
hannels This field specifies the channels to be used for transfers. Legal settings are
r
N
NA_CHANNELS_MONO, NA_CHANNELS_LEFT, NA_CHANNELS_RIGHT, o
A_CHANNELS_STEREO. In addition any of these can be bit-wise OR-ed with
w
NA_CHANNELS_CONTROL to transfer a control word with each sample word.
aiting The number of additional processes waiting to transfer data to/from the server. (Read-
g
Only).
ain Gain to be applied to transfers. A value of 1.0 causes no scaling to be performed.
VUdecayRate
Decay rate of VU metering in dB/second.
:state State of data transfers. This read-only variable will take one of the values
NA_INACTIVE, NA_FILLING, NA_PAUSED, NA_ACTIVE, NA_DRAINING, or
s
NA_DRAINPAUSED. The NA_FILLING, NA_DRAINING, and NA_DRAINPAUSED
tates are applicable only to playback.
error If a transfer error occurs, this read-only variable will be set to indicate the cause. Possible
,
N
values are: NA_XFRERR_NOERROR, NA_XFRERR_UNDERRUN
A_XFRERR_OVERRUN, NA_XFRERR_DROPPEDLOCK, NA_XFRERR_DSPERROR,
b
and NA_XFRERR_RATECHANGED.
ufferSize Total number of bytes of buffering available. (Read-only).
r
leftCS AES/EBU left channel status bytes.(Read-only for record)
ightCS AES/EBU right channel status bytes.(Read-only for record)
c
user AES/EBU user bytes.(Read-only for record)
lock Clock source for playback. This should be set to one of: NA_CLOCK_INTERNAL,
p
NA_CLOCK_EXTERNAL, or NA_CLOCK_INPUT. The internal setting uses
layback.externalRate to determine the output sample rate. Note that if the external or
-
i
input settings are used, playback.externalRate and playback.sampleRate will still be exam
ned to build a sample-rate converter.
master A non-zero value instructs the DAT-Link to output its bit-clock on the external connector.
skipSilence
A non-zero value indicates that leading silence should be deleted during recording.
tlocked This read-only variable is non-zero if the DAT-Link is receiving a valid digital audio inpu
signal.
nprotoMajorVersio
Major version of server’s NetAudio protocol. Different major versions are incompatible.
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