need a bit of help here regarding PDC in REAPER

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my track chain consists of
1.imageline slicex (no pdc)
2. mautopitch (midi input disabled)(pdc of 1024 samples)
3. munison (midi input disabled)(pdc of 2024 samples through changing spectral setting cause lower buffer was causing awaful sounds)

@44.1Khz

so the main question is i tried to disable the pdc through the i/o option in reaper and nouthing changed in audio will it cause any error i future or should i keep it enable.
REAPER, Phase Plant , Unfiltered Audio TRIAD and LION, NI classic collection,......... ETC

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Hmmm, why would you disable it? It is needed so that multiple track are in sync. But of course if you disable it, no errors will happen, but the tracks won't be in sync anymore.
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ok thanks
didnt knew about that
i only knew that it introduces latency in the audio
so i was a bit concerned
REAPER, Phase Plant , Unfiltered Audio TRIAD and LION, NI classic collection,......... ETC

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Apratim wrote:so the main question is i tried to disable the pdc through the i/o option in reaper and nouthing changed in audio will it cause any error i future or should i keep it enable.
If the latency and CPU consumption is troubling you freeze the track.

Masi

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Apratim wrote:ok thanks
didnt knew about that
i only knew that it introduces latency in the audio
so i was a bit concerned
Not quite - some plug-ins have to introduce a delay in the audio signal (not the same as a Delay effect) in order to do the required processing. PDC is there to compensate for that delay - it is Plug-in Delay Compensation.

For example, if a plug-in informs its DAW host that it creates a delay of 32 samples, the host will then delay all the other tracks by 32 samples too so that they all remain in sync.

Or, if the plug-in on one track delays the audio by 32 samples and a plug-in on another track delays the audio by 128 samples, then the host will delay that first track by a further 96 (=128-32) samples, leave the second track alone and delay the other tracks by 128 samples.

Reaper (and some other DAWs?) does it slightly differently: the notified delay is rounded up to an integral number of blocks (buffers) . Here for example, the block size is 256 samples. So, in my second example:
-- track 1 is further delayed by 224 (= 256-32) samples,
-- track 2 is further delayed by 128 (= 256-128) samples,
-- the other tracks are delayed by 256 (= 256-0) samples.
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