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zita-rev1(1) [debian man page]

ZITA-REV1(1)						      General Commands Manual						      ZITA-REV1(1)

NAME
zita-rev1 - pro-audio reverb effect SYNOPSIS
zita-rev1 [options] DESCRIPTION
REV1 is a reworked version of the reverb originally developed for Aeolus. Its character is more 'hall' than 'plate', but it can be used on a wide variety of instruments or voices. It is not a spatialiser - the early reflections are different for the L and R inputs, but do not correspond to any real room. They have been tuned to match left and right sources to some extent. In Stereo mode a dry/wet mix control is provided, so it can be used either as an insert or in send/return mode. For mono just connect one of the two channels. In Ambisonic mode (selected by the -B command line option) the only option is the send/return mode. OPTIONS
-B Ambisonic mode -name name Jack client name -s server Jack server name -g geometry Window position -h Display this text SEE ALSO
A quick guide is available at <http://kokkinizita.linuxaudio.org/linuxaudio/zita-rev1-doc/quickguide.html> AUTHOR
zita-rev1 was written by Fons Adriaensen <fons@linuxaudio.org>. This manual page was written by Alessio Treglia <alessio@debian.org> for the Debian project (but may be used by others). May 2011 ZITA-REV1(1)

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ZITA-REV1(1)						      General Commands Manual						      ZITA-REV1(1)

NAME
zita-j2a - Use ALSA capture device as a Jack client, with resampling. SYNOPSIS
zita-j2a [options] DESCRIPTION
This tool allows to use an ALSA device as a Jack client, to provide additional capture channels. Functionally it is equivalent to alsa_out that comes with Jack, but provides much better audio quality. The resampling ratio will typically be stable within 1 PPM and change only very smoothly. Delay will be stable as well even under worse case conditions, e.g. the Jack client running near the end of the cycle. The alsa device should be a 'hw:' one, i.e. direct access to a soundcard and not an ALSA 'plug' device. A well-working Jack system is assumed, running in real-time mode. The sample rate can be the same as Jack's one, or different. Minimum delay is obtained by running the alsa device at a lower period size than Jack. This can be done safely as the alsa thread will run at a higher priority, and apart from copying to/from an internal buffer no work is done there. There are no restrictions on the product of period_size and number_of_periods as there are for alsa_in and alsa_out. zita-j2a will optionally print some information four times per second. The first number is the average loop error over the last quarter second, in samples. It should be reduced to small randowm values close to zero after 15 seconds or so. The second is the dynamic correction factor of the nominal resampling ratio. This should converge to a value close to one and not move much. You may observe small variations in these numbers when Jack apps are started or stopped. This is normal. Anything else isn't - please report. When starting, and in case of major trouble, you will see the 'Starting synchronisation' message. This can happen if there is a timeout on the Jack server, e.g. a client crashed or terminated in a dirty way. Jack1 will skip one or more cycles when new apps are started, or when a large number of port connections is done in a short time. his may interrupt the audio signal, but should otherwise not have any ill consequences nor require a restart. zita-a2j and zita-j2a will suspend operation while Jack is in 'freewheeling' mode. OPTIONS
-h Display this text -d <device> ALSA playback device [none] -r <rate> Sample rate [48000] -p <period> Period size [256] -n <nfrags> Number of fragments [2] -c <nchannels> Number of channels [2] -Q <quality> Resampling quality [48] -v Print tracing information [off] Use '-h' to see all options. SEE ALSO
A quick guide is available at <http://kokkinizita.linuxaudio.org/linuxaudio/zita-rev1-doc/quickguide.html> AUTHOR
zita-ajbridge was written by Fons Adriaensen <fons@linuxaudio.org>. This manual page was written by Robin Gareus <robin@gareus.org> for the Debian project (but may be used by others). It is based on the original README and announce message by Fons Adriaensen. March 2012 ZITA-REV1(1)
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