Old 04-25-2012, 12:30 AM   #1
mcp pants
Mortal
 
Join Date: Apr 2012
Location: New Zealand
Posts: 3
Default Gradual increase of pops and clicks in reaper

Hi there, i have an issue thats got me stumped.

The issue is an increase in pops/hissing/distortion when either recording or playing back audio in reaper.
It always starts to kick in after 3:35 seconds! Well, i tested that 3 times today.
Im using win 7, with asio4all as my driver.
I use a line 6 pod x3 live for my input to record guitar via usb.
The problems im having only occur when the pod is enabled as an input device.
If i unplug it i have no problems - aside from not being able to record guitar!
The problem resets when i open the preferences and click 'ok' on the devices tab - everything is fine - for another 3 mins or so!

I use 2 other usb devices - an m-audio oxygen 61 and an akai lpd8, however i dont believe these are the cause, as the pod seems to be the culprit - because the issue is only present when the pod is enabled.
I really want to get this resolved, as using asio4all is the only way to get all 3 devices working at the same time, which makes recording nice and easy.
Does anyone have any idea whats happening?
Thanks

Ive checked my drivers are up to date for the pod, oxygen 61, lpd8 and realtek hd audio. Ive also installed the latest versions of reaper 32,64 and asio4all. Ive set my pc for high performance and disabled the usb power save function for all usb root controllers.
Ive heard that graphics cards can cause some kind of issue with priority settings, ive not yet made any changes to that though, mainly because i havent found anything that matches the known issue with my card AMD Radeon HD 6800 Series.
This is also on a brand new custom built pc, so it hasnt 'lost' any functionality - this is all first time round. I used to use a crappy laptop on xp with just reaper 32 and the pod and never had this problem.

Last edited by mcp pants; 04-25-2012 at 12:52 AM. Reason: provide more info
mcp pants is offline   Reply With Quote
Old 04-25-2012, 01:16 AM   #2
Nip
Mortal
 
Join Date: Jun 2010
Location: Sweden
Posts: 1,110
Default

Quote:
Originally Posted by mcp pants View Post
Hi there, i have an issue thats got me stumped.

The issue is an increase in pops/hissing/distortion when either recording or playing back audio in reaper.
It always starts to kick in after 3:35 seconds! Well, i tested that 3 times today.
Im using win 7, with asio4all as my driver.
I use a line 6 pod x3 live for my input to record guitar via usb.
The problems im having only occur when the pod is enabled as an input device.
If i unplug it i have no problems - aside from not being able to record guitar!
The problem resets when i open the preferences and click 'ok' on the devices tab - everything is fine - for another 3 mins or so!
That fenomena is quite natural since you have two audio devices present when pod is plugged in. After some time the slightly different clocks of these two will create pops and cracks in audio.

So see to that you sync Reaper from the device you record from. I gather there is a setting Reaper to choose what device you sync everything to in audio settings somehow. (I'm not at my daw right now).

In professional systems with multiple audio devices you use wordclock between every device not to create this problem.

Overall I would recommend you use audio out on pod instead. This will solve this issue.
Nip is offline   Reply With Quote
Old 04-25-2012, 02:49 AM   #3
mcp pants
Mortal
 
Join Date: Apr 2012
Location: New Zealand
Posts: 3
Default

Quote:
Originally Posted by Nip View Post
That fenomena is quite natural since you have two audio devices present when pod is plugged in. After some time the slightly different clocks of these two will create pops and cracks in audio.

So see to that you sync Reaper from the device you record from. I gather there is a setting Reaper to choose what device you sync everything to in audio settings somehow. (I'm not at my daw right now).

In professional systems with multiple audio devices you use wordclock between every device not to create this problem.

Overall I would recommend you use audio out on pod instead. This will solve this issue.
Thanks for the reply - i hadnt thought of that option, im certainly no expert with digital recording!
I have gone into reapers external timecode synch window and had no luck there - all options freeze playback and say its waiting for 'tc' and nothing happens. I tried all of the devices, there were a few variations listed such as mtc, spp for the pod, oxygen and lpd8 and also ltc for the pod and an asio positioning protocol - i dont know what any of these mean or do, but i tried all of them and playback was not possible.
It is important to retain usb recording with the pod if possible, as i take advantage of the dual tone capability, and that would be a problem input wise to the computer as i dont have any other usb interface - the pod already is one. Thanks
mcp pants is offline   Reply With Quote
Old 04-26-2012, 01:46 AM   #4
Nip
Mortal
 
Join Date: Jun 2010
Location: Sweden
Posts: 1,110
Default

I'm sorry, I was mistaken - there is no selection in Reaper of which input/output to sync on - looking now.

Thought what was in my other daw(Cakewalk Sonar) would be here too.

It's not midi sync or something like that I'm referring too - but which input on any interface in system is used to sync the 44.1k/48k/96k or whatever you run.

This is useful if using SPDIF input for recording among other things, and you need not use wordclock(and everything that comes with that) for your system.

There is something about using multiple ASIO interfaces as I recall. I have not looked if choosing WDM if anything else in settings appear.

If using one clock for input and one for playback it's bound to be a pop or crack in between. Clocks are never identical.

So unless you can select something in ASIO panel(as to be slave, not master) for POD device I see no solution.

Any audio output to POD as well - using that for playback as well while recording is the best I can suggest?

Or if SPDIF output from pod that give the same functionality as via usb, that could be run through main soundcards spdif input, and then usually be selected as sync in ASIO panel.

Any settings in ASIO4ALL that might let you select which interface to sync everything to?
Change it to pod while doing recording of guitar.
Nip is offline   Reply With Quote
Reply

Tags
asio4all, device, distorting, pod, usb

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 03:50 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.