[RWP] I'm having trouble with latency and reaper

[Jim Snowbarger]

I'm running pretty wimpy hardware on this one machine, 1.2 ghz, windows xp, 
using asio,  and I would estimate the latency, just by sound,  to be in the 
10 to 20 millisecond range, pretty acceptable.
In reaper preferences, audio system, which is asio, tab across until  a 
checkbox for Request Block Size.  I have that checked.  The next field is 
apparently the block size edit box which now appears, I have that set to 
256.
There are a couple checkboxes about pre-zero buffers, and reset messages, 
both unchecked.
Thread priority set to driver default.
HTH somehow.

  ----- Original Message ----- 
  From: Colin McDonald
  To: Reapers Without Peepers
  Sent: Monday, May 27, 2013 8:51 PM
  Subject: Re: [RWP] I'm having trouble with latency and reaper


  Further to this, I found I can lengthen the latency as much as I want, 
through the recording and playback latency controls.  but it won't change 
below a certain offset number.  So if I put a big number in there, I can 
increase the latency, but less than say 200MS it doesn't seem to change at 
all.  So my conclusion is that it's in the hardware and or processing more 
than anything else.
  It's just odd that I can get that latency right down to nothing in 
audacity by using a negative value in the record/play offset fields.
  Trust me, I've spent hours trying to tweak things and I can get it to have 
a slightly lesser delay time, but still very large compared to how it should 
be.
  The best way I've found to measure latency is to run a sound source, like 
a drum machine, into the sound card, then use the record monitor (F8) set to 
normal I think, and you can hear the huge latency between the signal playing 
through the sound card, and reaper playing it through the record monitor.
  I do it this way because that is how one would organize things during a 
multi-track over dub recording.

  It is possible I am missing something, but like I said, I've done 
extensive tests to get rid of that latency and it just will not reduce to 
less than a certain amount.

  Regards
  Colin
    ----- Original Message ----- 
    From: Colin McDonald
    To: Reapers Without Peepers
    Sent: Monday, May 27, 2013 7:32 PM
    Subject: Re: [RWP] I'm having trouble with latency and reaper


    did that...tried lots of different rates and it does minimize it a bit, 
but still it's a good 200MS.
    shrug, it's the sound card and processing power of the machine.

    Regards
    Colin
      ----- Original Message ----- 
      From: Jim Snowbarger
      To: Reapers Without Peepers
      Sent: Monday, May 27, 2013 7:26 PM
      Subject: Re: [RWP] I'm having trouble with latency and reaper


      Look at buffering time, both on play back and recording, and shrink 
those down to the lowest level that still provides reliable performance. 
That will help a lot.

        ----- Original Message ----- 
        From: Colin McDonald
        To: Reapers Without Peepers
        Sent: Monday, May 27, 2013 3:34 PM
        Subject: Re: [RWP] I'm having trouble with latency and reaper


        at least in audacity you could taylor the offset so that you ended 
up with very little latency...reaper doesn't appear to have anything that 
will do that.
        I've tried everything in reaper to offset the latency that I could 
kill with audacity on the same machines using the same sound cards.
        Asio, WDM and direct sound and the rest don't seem to make a whole 
lot of difference on my stuff...I'm still stuck with probably a 2 or 300MS 
latency issue.

        regards
        Colin
          ----- Original Message ----- 
          From: Chris Belle
          To: Reapers Without Peepers
          Sent: Monday, May 27, 2013 11:33 AM
          Subject: Re: [RWP] I'm having trouble with latency and reaper


          What are you using for an interface?

          If your not using a professional audio device, or aren't in asio 
or wdm mode, then your timing could be dodgy.

          It's the same problem with audacity a nice multi-tracker that's 
free but because it doesn't support accepted low latency high precission 
standards for recording, you have to set an off-set which will vary with 
each sound card, and even then might not work quite right.
          depending on what mode you are in.



            ----- Original Message ----- 
            From: kyle
            To: rwp at reaaccess.com
            Sent: Monday, May 27, 2013 7:24 AM
            Subject: [RWP] I'm having trouble with latency and reaper


            Hi,
            I have a problem with reaper. At least, i think its a problem 
with reaper. I can record all my tracks, and then go back to listen to them. 
for example, a drum track and piano track, and they are out of time. I know 
i've recorded them in time, and its starting to get a little old using wav 
files and mixing them down.
            Any help would be appriciated.


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