Specifications

Chapter 10. Recording Settings 71

Start Above. The start threshold deﬁnes the minimal volume a sound must have to start

the recording. It is displayed numerically in the line “Start Above”. Note that the

unit of the threshold depends on the settings of the peak meter. (i.e. When the

peak meter displays dB you can adjust the level in dB and when the peak meter

is set to linear the threshold is displayed as percentage.) In the peak meter at the

bottom of the screen the start threshold is displayed graphically by a little triangle

pointing to the right. There are two special values. The value Off turns the start

condition oﬀ. With this setting you have to start the recording manually and the

trigger only stops the recording according to the stop condition. The setting -inf

sets the trigger to the absolute minimum. This setting only makes sense when you

record via a digital input as even the noise of the device itself would exceed this

threshold immediately.

for at least. The start duration deﬁnes the minimal duration that a signal must ex-

ceed the start threshold to start the recording. Depending on your situation you

may want to set this setting to 0 (e.g. when copying a song from a commercial

medium) or to quite big values. Because sound is not continuous by nature (think

of percussion) negligible dropouts are tolerated during this start duration.

Stop Below. When the sound level drops below the stop threshold the recording is

stopped. It is displayed numerically in the line “Stop Below”. Just like the start

threshold the unit of the stop threshold depends on the settings of the peak meter.

There’s also a small triangular marker in the peak meter at the bottom of the

screen. In contrast to the start threshold marker it points to the left. The value

Off turns the stop condition oﬀ. With this setting you have to stop the recording

manually.

for at least. This time speciﬁes the duration the signal must drop below the stop thresh-

old to stop the recording. By selecting high values you can ensure that, for example,

trailing fade-outs are recorded entirely.

Presplit Gap. When the signal drops below the stop threshold for the time speciﬁed by

the presplit gap a new recording may be started when the signal raises above the

start threshold. Thus the value of the presplit gap should be smaller than the stop

hold time. Otherwise the recording would stop anyway and the presplit gap has

no eﬀect. For most uses I recommend to set this parameter equal to the stop hold

time. Sometimes you may encounter a sound source (e.g. a CD) where the songs

have fade outs and hardly any gaps between the tracks. Here you can set the stop

hold time to long values to ensure that all fade outs are recorded completely. By

specifying a short presplit gap you still can split the recording into separate tracks

whenever the trigger start condition is met.

More information can be found at ZVolumeTriggeredRecording.

The Rockbox manual (version rUnversioned directory-150515) Archos Recorder