[RWP] I'm having trouble with latency and reaper
Chris Belle
cb1963 at sbcglobal.net
Tue May 28 02:13:38 EDT 2013
Hey Patrick, the mackie won't run at 32 at 96k.
But it will do that at 44.1
If you have it set to 96k you have to run it at 64.
But as far as latency that equates to about the same thing.
----- Original Message -----
From: "Patrick Perdue" <patrick at pdaudio.net>
To: "Reapers Without Peepers" <rwp at reaaccess.com>
Sent: Tuesday, May 28, 2013 12:02 AM
Subject: Re: [RWP] I'm having trouble with latency and reaper
> Asio4all, by it's very nature as a wrapper from WDM kernel streaming to
> Asio, will do five totally different things on four systems. I've seen it
> work pretty reasonably, really badly, or not at all, depending on
> hardware/software configuration. The best thing to do is to get something
> that natively supports Asio, even something cheap like a Lexicon Alpha
> would do better than what you've got now. It's just a USB interface, and
> USB 1.1 I might ad, but I can get it down to 128 samples with reasonable
> load. I wouldn't try mixing a 48 or greater track project with it or
> anything, though I have actually mixed 24 track projects at 128 samples
> using wave out with my laptop's onboard sound chip. Granted, I wasn't
> recording, just playing back audio with a considerable amount of per-track
> and master effects, and it held up very well under those conditions,
> surprisingly.
> I can run my Presonus StudioLive and Focusrite Saffire Pro14 at 64
> samples, though I usually run them at 96 or 128 to give myself a bit of
> overhead. The higher the sampling rate,the shorter the delay. At 96 khz
> with my Saffire Pro14 at 64 samples, I'd guess my latency is something a
> bit less than 5 ms. The Mackie Onyx can run at 32 samples with safety
> buffers off. I'd like to actually see that running at 96 khz.
>
> On 5/27/2013 10:42 PM, Colin McDonald wrote:
>> ok, I'll give that a try.
>> Perhaps uninstall and reinstall of the newest asio4all drivers might
>> help as well.
>> Regards
>> Colin
>>
>> ----- Original Message -----
>> *From:* Jim Snowbarger <mailto:Snowman at SnowmanRadio.com>
>> *To:* Reapers Without Peepers <mailto:rwp at reaaccess.com>
>> *Sent:* Monday, May 27, 2013 8:16 PM
>> *Subject:* Re: [RWP] I'm having trouble with latency and reaper
>>
>> 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 <mailto:blulemon at telus.net>
>> *To:* Reapers Without Peepers <mailto:rwp at reaaccess.com>
>> *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 <mailto:blulemon at telus.net>
>> *To:* Reapers Without Peepers <mailto:rwp at reaaccess.com>
>> *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 <mailto:Snowman at SnowmanRadio.com>
>> *To:* Reapers Without Peepers <mailto:rwp at reaaccess.com>
>> *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 <mailto:blulemon at telus.net>
>> *To:* Reapers Without Peepers
>> <mailto:rwp at reaaccess.com>
>> *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 <mailto:cb1963 at sbcglobal.net>
>> *To:* Reapers Without Peepers
>> <mailto:rwp at reaaccess.com>
>> *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 <mailto:klcunningham6 at gmail.com>
>> *To:* rwp at reaaccess.com
>> <mailto: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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