Question / Help Audio popping/skipping issue

D

Decuryo

New Member
So whenever I preview/record/stream a scene with any audio being played (music, game sounds, youtube), I get random, annoying popping/skipping sounds that almost sound like clipping. This seems to only occur on my end, as the recordings sound just fine.

My equipment is as follows:
  • Logitech C615 Webcam
  • Blue Snowball USB Mic
  • M-Audio Firewire 410 Audio Interface
It definitely seems to be an issue with the camera as when I remove the camera source, the problem goes away. I've read where people have lowered their camera resolution and had success, but this seems to me like a poor workaround (I have to lower mine pretty significantly to get it to be constantly clear). I've tried different USB ports as well.

Any and all suggestions are appreciated!

Log:
Code: 
00:51:02: Open Broadcaster Software v0.654b - 32bit (´・ω・｀)
00:51:02: -------------------------------
00:51:02: CPU Name: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
00:51:02: CPU Speed: 3300MHz
00:51:02: Physical Memory:  4095MB Total, 4095MB Free
00:51:02: stepping id: 7, model 42, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 4, total cores 4
00:51:02: monitor 1: pos={0, 0}, size={1920, 1080}
00:51:02: monitor 2: pos={1920, 0}, size={1920, 1080}
00:51:02: Windows Version: 6.1 Build 7601 (revision 18869)
00:51:02: Aero is Disabled
00:51:02: -------------------------------
00:51:02: OBS Modules:
00:51:02: Base Address     Module
00:51:02: 00E20000         OBS.exe
00:51:02: 6A170000         OBSApi.dll
00:51:02: 74230000         DShowPlugin.dll
00:51:02: 74180000         GraphicsCapture.dll
00:51:02: 74150000         NoiseGate.dll
00:51:02: 74640000         PSVPlugin.dll
00:51:02: 73D20000         scenesw.dll
00:51:02: ------------------------------------------
00:51:02: Adapter 1
00:51:02:   Video Adapter: NVIDIA GeForce GTX 560 Ti 
00:51:02:   Video Adapter Dedicated Video Memory: 1027014656
00:51:02:   Video Adapter Shared System Memory: 3221106688
00:51:02:   Video Adapter Output 1: pos={0, 0}, size={1920, 1080}, attached=true
00:51:02:   Video Adapter Output 2: pos={1920, 0}, size={1920, 1080}, attached=true
00:51:02: =====Stream Start: 2015-08-03, 00:51:02===============================================
00:51:02:   Multithreaded optimizations: On
00:51:02:   Base resolution: 1920x1080
00:51:02:   Output resolution: 1280x720
00:51:02: ------------------------------------------
00:51:02: Loading up D3D10 on NVIDIA GeForce GTX 560 Ti (Adapter 1)...
00:51:02: ------------------------------------------
00:51:02: Audio Format: 48000 Hz
00:51:02: ------------------------------------------
00:51:02: Audio Channels: 2 Ch
00:51:02: Playback device {0.0.0.00000000}.{7e76fd13-9037-4f2c-b68c-abdbc41c7911}
00:51:02: ------------------------------------------
00:51:02: Using desktop audio input: MAIN (M-Audio FW 410)
00:51:02: Global Audio time adjust: 0
00:51:02: ------------------------------------------
00:51:02: Using auxilary audio input: Microphone (Blue Snowball)
00:51:02: Mic time offset: 0
00:51:02: ------------------------------------------
00:51:02: Audio Encoding: AAC
00:51:02:     bitrate: 128
00:51:02: ------------------------------------------
00:51:02:     device: Logitech HD Webcam C615,
00:51:02:     device id \\?\usb#vid_046d&pid_082c&mi_02#7&1ebf6ad1&0&0002#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083},
00:51:02:     chosen type: RGB24, usingFourCC: false, res: 1920x1080 - 1920x1080, frameIntervals: 333333-2000000
00:51:02:     use buffering: true - 10000, fourCC: 00000000
00:51:02:     audio device: Disable,
00:51:02:     audio device id Disabled,
00:51:02:     audio time offset 0,
00:51:02:
00:51:02: Using directshow input
00:51:02: Scene buffering time set to 700
00:51:02: ------------------------------------------
00:51:02: Video Encoding: x264
00:51:02:     fps: 60
00:51:02:     width: 1280, height: 720
00:51:02:     preset: veryfast
00:51:02:     profile: main
00:51:02:     keyint: 120
00:51:02:     CBR: yes
00:51:02:     CFR: yes
00:51:02:     max bitrate: 3300
00:51:02:     buffer size: 3300
00:51:02: ------------------------------------------
00:57:41: ------------------------------------------
00:57:41:     device: Logitech HD Webcam C615,
00:57:41:     device id \\?\usb#vid_046d&pid_082c&mi_02#7&1ebf6ad1&0&0002#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083},
00:57:41:     chosen type: RGB24, usingFourCC: false, res: 1920x1080 - 1920x1080, frameIntervals: 333333-2000000
00:57:41:     use buffering: true - 10000, fourCC: 00000000
00:57:41:     audio device: Disable,
00:57:41:     audio device id Disabled,
00:57:41:     audio time offset 0,
00:57:41:
00:57:41: Using directshow input
01:00:48: FlushBufferedVideo: Flushing 27 packets over 434 ms
01:00:48: Total frames encoded: 35129, total frames duplicated: 224 (0.64%)
01:00:48: Total frames rendered: 35122, number of late frames: 3 (0.01%) (it's okay for some frames to be late)
01:00:49:
01:00:49: Profiler time results:
01:00:49:
01:00:49: ==============================================================
01:00:49: video thread frame - [100%] [avg time: 1.495 ms] [children: 68.8%] [unaccounted: 31.2%]
01:00:49: | scene->Preprocess - [49.8%] [avg time: 0.745 ms]
01:00:49: | GPU download and conversion - [19%] [avg time: 0.284 ms] [children: 18.3%] [unaccounted: 0.736%]
01:00:49: | | flush - [17.7%] [avg time: 0.264 ms]
01:00:49: | | CopyResource - [0.401%] [avg time: 0.006 ms]
01:00:49: | | conversion to 4:2:0 - [0.201%] [avg time: 0.003 ms]
01:00:49: Convert444Threads - [100%] [avg time: 0.549 ms] [children: 98.5%] [unaccounted: 1.46%]
01:00:49: | Convert444toNV12 - [98.5%] [avg time: 0.541 ms]
01:00:49: encoder thread frame - [100%] [avg time: 0.826 ms] [children: 0.363%] [unaccounted: 99.6%]
01:00:49: | sending stuff out - [0.363%] [avg time: 0.003 ms]
01:00:49: ==============================================================
01:00:49:
01:00:49:
01:00:49: Profiler CPU results:
01:00:49:
01:00:49: ==============================================================
01:00:49: video thread frame - [cpu time: avg 0.819 ms, total 28797.8 ms] [avg calls per frame: 1]
01:00:49: | scene->Preprocess - [cpu time: avg 0.575 ms, total 20202.1 ms] [avg calls per frame: 1]
01:00:49: | GPU download and conversion - [cpu time: avg 0.077 ms, total 2714.41 ms] [avg calls per frame: 1]
01:00:49: | | flush - [cpu time: avg 0.067 ms, total 2386.81 ms] [avg calls per frame: 1]
01:00:49: | | CopyResource - [cpu time: avg 0.003 ms, total 109.2 ms] [avg calls per frame: 1]
01:00:49: | | conversion to 4:2:0 - [cpu time: avg 0.002 ms, total 78 ms] [avg calls per frame: 1]
01:00:49: Convert444Threads - [cpu time: avg 0.292 ms, total 20514.1 ms] [avg calls per frame: 2]
01:00:49: | Convert444toNV12 - [cpu time: avg 0.289 ms, total 20342.5 ms] [avg calls per frame: 2]
01:00:49: encoder thread frame - [cpu time: avg 0.142 ms, total 4992.03 ms] [avg calls per frame: 1]
01:00:49: | sending stuff out - [cpu time: avg 0 ms, total 15.6 ms] [avg calls per frame: 1]
01:00:49: ==============================================================
01:00:49:
01:00:49: =====Stream End: 2015-08-03, 01:00:49=================================================
 
Decuryo said:
So whenever I preview/record/stream a scene with any audio being played (music, game sounds, youtube), I get random, annoying popping/skipping sounds that almost sound like clipping. This seems to only occur on my end, as the recordings sound just fine.

My equipment is as follows:
  • Logitech C615 Webcam
  • Blue Snowball USB Mic
  • M-Audio Firewire 410 Audio Interface
It definitely seems to be an issue with the camera as when I remove the camera source, the problem goes away. I've read where people have lowered their camera resolution and had success, but this seems to me like a poor workaround (I have to lower mine pretty significantly to get it to be constantly clear). I've tried different USB ports as well.

Any and all suggestions are appreciated!

Log:
Code: 
00:51:02: Open Broadcaster Software v0.654b - 32bit (´・ω・｀)
00:51:02: -------------------------------
00:51:02: CPU Name: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
00:51:02: CPU Speed: 3300MHz
00:51:02: Physical Memory:  4095MB Total, 4095MB Free
00:51:02: stepping id: 7, model 42, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 4, total cores 4
00:51:02: monitor 1: pos={0, 0}, size={1920, 1080}
00:51:02: monitor 2: pos={1920, 0}, size={1920, 1080}
00:51:02: Windows Version: 6.1 Build 7601 (revision 18869)
00:51:02: Aero is Disabled
00:51:02: -------------------------------
00:51:02: OBS Modules:
00:51:02: Base Address     Module
00:51:02: 00E20000         OBS.exe
00:51:02: 6A170000         OBSApi.dll
00:51:02: 74230000         DShowPlugin.dll
00:51:02: 74180000         GraphicsCapture.dll
00:51:02: 74150000         NoiseGate.dll
00:51:02: 74640000         PSVPlugin.dll
00:51:02: 73D20000         scenesw.dll
00:51:02: ------------------------------------------
00:51:02: Adapter 1
00:51:02:   Video Adapter: NVIDIA GeForce GTX 560 Ti
00:51:02:   Video Adapter Dedicated Video Memory: 1027014656
00:51:02:   Video Adapter Shared System Memory: 3221106688
00:51:02:   Video Adapter Output 1: pos={0, 0}, size={1920, 1080}, attached=true
00:51:02:   Video Adapter Output 2: pos={1920, 0}, size={1920, 1080}, attached=true
00:51:02: =====Stream Start: 2015-08-03, 00:51:02===============================================
00:51:02:   Multithreaded optimizations: On
00:51:02:   Base resolution: 1920x1080
00:51:02:   Output resolution: 1280x720
00:51:02: ------------------------------------------
00:51:02: Loading up D3D10 on NVIDIA GeForce GTX 560 Ti (Adapter 1)...
00:51:02: ------------------------------------------
00:51:02: Audio Format: 48000 Hz
00:51:02: ------------------------------------------
00:51:02: Audio Channels: 2 Ch
00:51:02: Playback device {0.0.0.00000000}.{7e76fd13-9037-4f2c-b68c-abdbc41c7911}
00:51:02: ------------------------------------------
00:51:02: Using desktop audio input: MAIN (M-Audio FW 410)
00:51:02: Global Audio time adjust: 0
00:51:02: ------------------------------------------
00:51:02: Using auxilary audio input: Microphone (Blue Snowball)
00:51:02: Mic time offset: 0
00:51:02: ------------------------------------------
00:51:02: Audio Encoding: AAC
00:51:02:     bitrate: 128
00:51:02: ------------------------------------------
00:51:02:     device: Logitech HD Webcam C615,
00:51:02:     device id \\?\usb#vid_046d&pid_082c&mi_02#7&1ebf6ad1&0&0002#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083},
00:51:02:     chosen type: RGB24, usingFourCC: false, res: 1920x1080 - 1920x1080, frameIntervals: 333333-2000000
00:51:02:     use buffering: true - 10000, fourCC: 00000000
00:51:02:     audio device: Disable,
00:51:02:     audio device id Disabled,
00:51:02:     audio time offset 0,
00:51:02:
00:51:02: Using directshow input
00:51:02: Scene buffering time set to 700
00:51:02: ------------------------------------------
00:51:02: Video Encoding: x264
00:51:02:     fps: 60
00:51:02:     width: 1280, height: 720
00:51:02:     preset: veryfast
00:51:02:     profile: main
00:51:02:     keyint: 120
00:51:02:     CBR: yes
00:51:02:     CFR: yes
00:51:02:     max bitrate: 3300
00:51:02:     buffer size: 3300
00:51:02: ------------------------------------------
00:57:41: ------------------------------------------
00:57:41:     device: Logitech HD Webcam C615,
00:57:41:     device id \\?\usb#vid_046d&pid_082c&mi_02#7&1ebf6ad1&0&0002#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083},
00:57:41:     chosen type: RGB24, usingFourCC: false, res: 1920x1080 - 1920x1080, frameIntervals: 333333-2000000
00:57:41:     use buffering: true - 10000, fourCC: 00000000
00:57:41:     audio device: Disable,
00:57:41:     audio device id Disabled,
00:57:41:     audio time offset 0,
00:57:41:
00:57:41: Using directshow input
01:00:48: FlushBufferedVideo: Flushing 27 packets over 434 ms
01:00:48: Total frames encoded: 35129, total frames duplicated: 224 (0.64%)
01:00:48: Total frames rendered: 35122, number of late frames: 3 (0.01%) (it's okay for some frames to be late)
01:00:49:
01:00:49: Profiler time results:
01:00:49:
01:00:49: ==============================================================
01:00:49: video thread frame - [100%] [avg time: 1.495 ms] [children: 68.8%] [unaccounted: 31.2%]
01:00:49: | scene->Preprocess - [49.8%] [avg time: 0.745 ms]
01:00:49: | GPU download and conversion - [19%] [avg time: 0.284 ms] [children: 18.3%] [unaccounted: 0.736%]
01:00:49: | | flush - [17.7%] [avg time: 0.264 ms]
01:00:49: | | CopyResource - [0.401%] [avg time: 0.006 ms]
01:00:49: | | conversion to 4:2:0 - [0.201%] [avg time: 0.003 ms]
01:00:49: Convert444Threads - [100%] [avg time: 0.549 ms] [children: 98.5%] [unaccounted: 1.46%]
01:00:49: | Convert444toNV12 - [98.5%] [avg time: 0.541 ms]
01:00:49: encoder thread frame - [100%] [avg time: 0.826 ms] [children: 0.363%] [unaccounted: 99.6%]
01:00:49: | sending stuff out - [0.363%] [avg time: 0.003 ms]
01:00:49: ==============================================================
01:00:49:
01:00:49:
01:00:49: Profiler CPU results:
01:00:49:
01:00:49: ==============================================================
01:00:49: video thread frame - [cpu time: avg 0.819 ms, total 28797.8 ms] [avg calls per frame: 1]
01:00:49: | scene->Preprocess - [cpu time: avg 0.575 ms, total 20202.1 ms] [avg calls per frame: 1]
01:00:49: | GPU download and conversion - [cpu time: avg 0.077 ms, total 2714.41 ms] [avg calls per frame: 1]
01:00:49: | | flush - [cpu time: avg 0.067 ms, total 2386.81 ms] [avg calls per frame: 1]
01:00:49: | | CopyResource - [cpu time: avg 0.003 ms, total 109.2 ms] [avg calls per frame: 1]
01:00:49: | | conversion to 4:2:0 - [cpu time: avg 0.002 ms, total 78 ms] [avg calls per frame: 1]
01:00:49: Convert444Threads - [cpu time: avg 0.292 ms, total 20514.1 ms] [avg calls per frame: 2]
01:00:49: | Convert444toNV12 - [cpu time: avg 0.289 ms, total 20342.5 ms] [avg calls per frame: 2]
01:00:49: encoder thread frame - [cpu time: avg 0.142 ms, total 4992.03 ms] [avg calls per frame: 1]
01:00:49: | sending stuff out - [cpu time: avg 0 ms, total 15.6 ms] [avg calls per frame: 1]
01:00:49: ==============================================================
01:00:49:
01:00:49: =====Stream End: 2015-08-03, 01:00:49=================================================
Click to expand...
Enable Aero and lower your webcam resolution to 720p. the popping and skipping is more than likely your USB being saturated by 1080p video from the webcam.

enabling aero is better for accelerated hooking of applications in most cases.
 
I dropped my webcam res to 1280x720 and enabled aero within Windows ("Disable Aero" was already unchecked within OBS), and it seems to have helped significantly. There are still tiny pops here and there, though not nearly as bad.
 
Decuryo said:
I dropped my webcam res to 1280x720 and enabled aero within Windows ("Disable Aero" was already unchecked within OBS), and it seems to have helped significantly. There are still tiny pops here and there, though not nearly as bad.
Click to expand...
Feel free to post another log if you have further issues.
 
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