Bug Report Audio is choppy while broadcasting

Rafeeq · Dec 23, 2013

Hello everyone !

I'm using OBS since few months ago and I have a problem. A problem that keeps going on and on and on. I don't know why. The first problem what a progressive delay (the audio became more and more unsync with the video). But I've learn it's because of the USB sound card I was using. Without it, the sound is ok... well, from what I've seen.

Now it's a new problem. While I'm playing Brutal Doom (a mod ran with Gzdoom for Doom 1 and 2 - and yes, I've tried playing with and without 3D accelerator application, playing in Software / OpenGL), the audio of my broadcasting is getting chopped. Litteraly chopped. I'm broadcasting on twitch.tv and you can clearly see the sound getting cut every 2s. I don't understand. I've tried lowering the FPS limit (down to 10), lowering the audio / video quality, changing presets (for ultrafast by exemple), and so on. Nothing works. It keeps chopping. Check this preview to have a clear idea of what I'm talking about : http://www.twitch.tv/rafeeqqc/b/489753242 or here http://www.twitch.tv/rafeeqqc/b/489752676

The video is perfect, I can go up to 60 fps without problem. But the audio, no matter what, keeps chopping. When with the USB sound card. Something's really funny too. When I broadcast with ANOTHER application (FFsplit for example), the sound is perfect, no chopping ! Only OBS can't broadcast without chopping the sound.

Here's the log (I just keep trying streaming all the time so I can archive the video and view it by myself) :

Code:

18:25:09: Settings::Video: Enabling Aero
18:25:23: Open Broadcaster Software v0.591b - 64bit (　^ω^)
18:25:23: -------------------------------
18:25:23: CPU Name: Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz
18:25:23: CPU Speed: 2672MHz
18:25:23: Physical Memory:  6135MB Total, 3307MB Free
18:25:23: stepping id: 4, model 26, family 6, type 0, extmodel 0, extfamily 0, HTT 1, logical cores 4, total cores 4
18:25:23: monitor 1: pos={0, 0}, size={1680, 1050}
18:25:23: Windows Version: 6.1 Build 7601 S
18:25:23: Aero is Enabled
18:25:23: -------------------------------
18:25:23: OBS Modules:
18:25:23: Base Address     Module
18:25:23: 000000003F050000 OBS.exe
18:25:23: 00000000F1BE0000 OBSApi.dll
18:25:23: 00000000FA950000 DShowPlugin.dll
18:25:23: 00000000FAA30000 GraphicsCapture.dll
18:25:23: 00000000FA930000 NoiseGate.dll
18:25:23: 00000000FA780000 PSVPlugin.dll
18:25:23: ------------------------------------------
18:25:23: Adapter 1
18:25:23:   Video Adapter: NVIDIA GeForce GTX 760
18:25:23:   Video Adapter Dedicated Video Memory: 2087387136
18:25:23:   Video Adapter Shared System Memory: 2147807232
18:25:23:   Video Adapter Output 1: pos={0, 0}, size={1680, 1050}, attached=true
18:25:23: =====Stream Start: 2013-12-23, 18:25:23===============================================
18:25:23:   Multithreaded optimizations: On
18:25:23:   Base resolution: 1680x1050
18:25:23:   Output resolution: 1120x700
18:25:23: ------------------------------------------
18:25:23: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:25:23: ------------------------------------------
18:25:23: Audio Format: 44100hz
18:25:23: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:25:23: ------------------------------------------
18:25:23: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:25:23: ------------------------------------------
18:25:23: Audio Encoding: AAC
18:25:23:     bitrate: 128
18:25:23: Using graphics capture
18:25:23: Scene buffering time set to 700
18:25:23: ------------------------------------------
18:25:23: Video Encoding: x264
18:25:23:     fps: 40
18:25:23:     width: 1120, height: 700
18:25:23:     preset: veryfast
18:25:23:     profile: main
18:25:23:     keyint: 80
18:25:23:     CBR: yes
18:25:23:     CFR: yes
18:25:23:     max bitrate: 2000
18:25:23:     buffer size: 2000
18:25:23: ------------------------------------------
18:25:23: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:25:24: SharedTexCapture hooked
18:25:25: Using RTMP service: Twitch / Justin.tv
18:25:25:   Server selection: rtmp://live-jfk.justin.tv/app
18:25:25:   Interface: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller (ethernet, 1000 mbps)
18:25:25: Completed handshake with rtmp://live-jfk.justin.tv/app in 188 ms.
18:25:26: SO_SNDBUF was at 8192
18:25:26: SO_SNDBUF is now 65536
18:25:27: Total frames encoded: 133, total frames duplicated: 3 (2.26%)
18:25:27: Total frames rendered: 137, number of late frames: 0 (0.00%) (it's okay for some frames to be late)
18:25:27: RTMPPublisher::SocketLoop: Increasing send buffer to ISB 131072 (buffer: 3052 / 272384)
18:25:27: RTMPPublisher::SocketLoop: Graceful loop exit
18:25:27: Average send payload: 33777 bytes, average send interval: 57 ms
18:25:27: Number of times waited to send: 0, Waited for a total of 0 bytes
18:25:27: Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
18:25:27: Number of bytes sent: 135108
18:25:27: 
18:25:27: Profiler time results:
18:25:27: 
18:25:27: ==============================================================
18:25:27: video thread frame - [100%] [avg time: 1.225 ms] [children: 12.3%] [unaccounted: 87.7%]
18:25:27: | scene->Preprocess - [0.0816%] [avg time: 0.001 ms]
18:25:27: | GPU download and conversion - [12.2%] [avg time: 0.15 ms] [children: 10.8%] [unaccounted: 1.47%]
18:25:27: | | flush - [8.9%] [avg time: 0.109 ms]
18:25:27: | | CopyResource - [1.55%] [avg time: 0.019 ms]
18:25:27: | | conversion to 4:2:0 - [0.327%] [avg time: 0.004 ms]
18:25:27: Convert444Threads - [100%] [avg time: 0.618 ms] [children: 98.9%] [unaccounted: 1.13%]
18:25:27: | Convert444toNV12 - [98.9%] [avg time: 0.611 ms]
18:25:27: encoder thread frame - [100%] [avg time: 1.162 ms]
18:25:27: ==============================================================
18:25:27: 
18:25:27: 
18:25:27: Profiler CPU results:
18:25:27: 
18:25:27: ==============================================================
18:25:27: video thread frame - [cpu time: avg 0.797 ms, total 109.2 ms] [avg calls per frame: 1]
18:25:27: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:25:27: | GPU download and conversion - [cpu time: avg 0.113 ms, total 15.6 ms] [avg calls per frame: 1]
18:25:27: | | flush - [cpu time: avg 0.113 ms, total 15.6 ms] [avg calls per frame: 1]
18:25:27: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:25:27: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:25:27: Convert444Threads - [cpu time: avg 0.883 ms, total 187.2 ms] [avg calls per frame: 2]
18:25:27: | Convert444toNV12 - [cpu time: avg 0.883 ms, total 187.2 ms] [avg calls per frame: 2]
18:25:27: encoder thread frame - [cpu time: avg 0.891 ms, total 93.6 ms] [avg calls per frame: 1]
18:25:27: ==============================================================
18:25:27: 
18:25:27: =====Stream End: 2013-12-23, 18:25:27=================================================
18:26:37: =====Stream Start: 2013-12-23, 18:26:37===============================================
18:26:37:   Multithreaded optimizations: On
18:26:37:   Base resolution: 1680x1050
18:26:37:   Output resolution: 1120x700
18:26:37: ------------------------------------------
18:26:37: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:26:37: ------------------------------------------
18:26:37: Audio Format: 44100hz
18:26:37: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:26:37: ------------------------------------------
18:26:37: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:26:37: ------------------------------------------
18:26:37: Audio Encoding: AAC
18:26:37:     bitrate: 128
18:26:37: Using graphics capture
18:26:37: Scene buffering time set to 700
18:26:37: ------------------------------------------
18:26:37: Video Encoding: x264
18:26:37:     fps: 40
18:26:37:     width: 1120, height: 700
18:26:37:     preset: veryfast
18:26:37:     profile: main
18:26:37:     keyint: 80
18:26:37:     CBR: yes
18:26:37:     CFR: yes
18:26:37:     max bitrate: 2000
18:26:37:     buffer size: 2000
18:26:37: ------------------------------------------
18:26:37: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:26:37: SharedTexCapture hooked
18:26:40: Using RTMP service: Twitch / Justin.tv
18:26:40:   Server selection: rtmp://live-jfk.justin.tv/app
18:26:40:   Interface: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller (ethernet, 1000 mbps)
18:26:40: Completed handshake with rtmp://live-jfk.justin.tv/app in 230 ms.
18:26:40: SO_SNDBUF was at 8192
18:26:40: SO_SNDBUF is now 65536
18:26:42: RTMPPublisher::SocketLoop: Increasing send buffer to ISB 131072 (buffer: 1485 / 272384)
18:27:10: Total frames encoded: 1317, total frames duplicated: 4 (0.30%)
18:27:10: Total frames rendered: 1324, number of late frames: 1 (0.08%) (it's okay for some frames to be late)
18:27:10: RTMPPublisher::SocketLoop: Graceful loop exit
18:27:10: Average send payload: 5444 bytes, average send interval: 19 ms
18:27:10: Number of times waited to send: 0, Waited for a total of 0 bytes
18:27:10: Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
18:27:10: Number of bytes sent: 7818102
18:27:10: 
18:27:10: Profiler time results:
18:27:10: 
18:27:10: ==============================================================
18:27:10: video thread frame - [100%] [avg time: 0.663 ms] [children: 17.3%] [unaccounted: 82.7%]
18:27:10: | scene->Preprocess - [0.151%] [avg time: 0.001 ms]
18:27:10: | GPU download and conversion - [17.2%] [avg time: 0.114 ms] [children: 13.4%] [unaccounted: 3.77%]
18:27:10: | | flush - [11.5%] [avg time: 0.076 ms]
18:27:10: | | CopyResource - [1.66%] [avg time: 0.011 ms]
18:27:10: | | conversion to 4:2:0 - [0.302%] [avg time: 0.002 ms]
18:27:10: Convert444Threads - [100%] [avg time: 0.462 ms] [children: 99.1%] [unaccounted: 0.866%]
18:27:10: | Convert444toNV12 - [99.1%] [avg time: 0.458 ms]
18:27:10: encoder thread frame - [100%] [avg time: 0.916 ms]
18:27:10: ==============================================================
18:27:10: 
18:27:10: 
18:27:10: Profiler CPU results:
18:27:10: 
18:27:10: ==============================================================
18:27:10: video thread frame - [cpu time: avg 0.047 ms, total 62.4 ms] [avg calls per frame: 1]
18:27:10: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:10: | GPU download and conversion - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:10: | | flush - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:10: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:10: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:10: Convert444Threads - [cpu time: avg 0.175 ms, total 452.402 ms] [avg calls per frame: 2]
18:27:10: | Convert444toNV12 - [cpu time: avg 0.175 ms, total 452.402 ms] [avg calls per frame: 2]
18:27:10: encoder thread frame - [cpu time: avg 0.157 ms, total 202.801 ms] [avg calls per frame: 1]
18:27:10: ==============================================================
18:27:10: 
18:27:10: =====Stream End: 2013-12-23, 18:27:10=================================================
18:27:10: =====Stream Start: 2013-12-23, 18:27:10===============================================
18:27:10:   Multithreaded optimizations: On
18:27:10:   Base resolution: 1680x1050
18:27:10:   Output resolution: 1120x700
18:27:10: ------------------------------------------
18:27:10: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:27:10: ------------------------------------------
18:27:10: Audio Format: 44100hz
18:27:10: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:27:10: ------------------------------------------
18:27:10: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:27:10: ------------------------------------------
18:27:10: Audio Encoding: AAC
18:27:10:     bitrate: 128
18:27:10: Using graphics capture
18:27:10: Scene buffering time set to 700
18:27:10: ------------------------------------------
18:27:10: Video Encoding: x264
18:27:10:     fps: 40
18:27:10:     width: 1120, height: 700
18:27:10:     preset: veryfast
18:27:10:     profile: main
18:27:10:     keyint: 80
18:27:10:     CBR: yes
18:27:10:     CFR: yes
18:27:10:     max bitrate: 2000
18:27:10:     buffer size: 2000
18:27:10: ------------------------------------------
18:27:10: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:27:12: Using RTMP service: Twitch / Justin.tv
18:27:12:   Server selection: rtmp://live-jfk.justin.tv/app
18:27:12:   Interface: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller (ethernet, 1000 mbps)
18:27:12: Completed handshake with rtmp://live-jfk.justin.tv/app in 203 ms.
18:27:13: SO_SNDBUF was at 8192
18:27:13: SO_SNDBUF is now 65536
18:27:15: Total frames encoded: 163, total frames duplicated: 2 (1.23%)
18:27:15: Total frames rendered: 170, number of late frames: 1 (0.59%) (it's okay for some frames to be late)
18:27:15: RTMPPublisher::SocketLoop: Graceful loop exit
18:27:15: Average send payload: 96 bytes, average send interval: 23 ms
18:27:15: Number of times waited to send: 0, Waited for a total of 0 bytes
18:27:15: Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
18:27:15: Number of bytes sent: 3392
18:27:15: 
18:27:15: Profiler time results:
18:27:15: 
18:27:15: ==============================================================
18:27:15: video thread frame - [100%] [avg time: 0.916 ms] [children: 11.4%] [unaccounted: 88.6%]
18:27:15: | scene->Preprocess - [0.109%] [avg time: 0.001 ms]
18:27:15: | GPU download and conversion - [11.2%] [avg time: 0.103 ms] [children: 9.17%] [unaccounted: 2.07%]
18:27:15: | | flush - [6.44%] [avg time: 0.059 ms]
18:27:15: | | CopyResource - [2.51%] [avg time: 0.023 ms]
18:27:15: | | conversion to 4:2:0 - [0.218%] [avg time: 0.002 ms]
18:27:15: Convert444Threads - [100%] [avg time: 0.601 ms] [children: 99.2%] [unaccounted: 0.832%]
18:27:15: | Convert444toNV12 - [99.2%] [avg time: 0.596 ms]
18:27:15: encoder thread frame - [100%] [avg time: 1.058 ms]
18:27:15: ==============================================================
18:27:15: 
18:27:15: 
18:27:15: Profiler CPU results:
18:27:15: 
18:27:15: ==============================================================
18:27:15: video thread frame - [cpu time: avg 0.275 ms, total 46.8 ms] [avg calls per frame: 1]
18:27:15: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:15: | GPU download and conversion - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:15: | | flush - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:15: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:15: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:27:15: Convert444Threads - [cpu time: avg 0.573 ms, total 156 ms] [avg calls per frame: 2]
18:27:15: | Convert444toNV12 - [cpu time: avg 0.573 ms, total 156 ms] [avg calls per frame: 2]
18:27:15: encoder thread frame - [cpu time: avg 0.577 ms, total 78 ms] [avg calls per frame: 1]
18:27:15: ==============================================================
18:27:15: 
18:27:15: =====Stream End: 2013-12-23, 18:27:15=================================================
18:42:32: =====Stream Start: 2013-12-23, 18:42:32===============================================
18:42:32:   Multithreaded optimizations: On
18:42:32:   Base resolution: 1680x1050
18:42:32:   Output resolution: 1120x700
18:42:32: ------------------------------------------
18:42:32: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:42:32: ------------------------------------------
18:42:32: Audio Format: 44100hz
18:42:32: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:42:32: ------------------------------------------
18:42:32: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:42:32: ------------------------------------------
18:42:32: Audio Encoding: AAC
18:42:32:     bitrate: 128
18:42:32: Using graphics capture
18:42:32: Scene buffering time set to 700
18:42:32: ------------------------------------------
18:42:32: Video Encoding: x264
18:42:32:     fps: 40
18:42:32:     width: 1120, height: 700
18:42:32:     preset: veryfast
18:42:32:     profile: main
18:42:32:     keyint: 80
18:42:32:     CBR: yes
18:42:32:     CFR: yes
18:42:32:     max bitrate: 2000
18:42:32:     buffer size: 2000
18:42:32: ------------------------------------------
18:42:32: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:42:33: Total frames encoded: 1, total frames duplicated: 0 (0.00%)
18:42:33: Total frames rendered: 34, number of late frames: 1 (2.94%) (it's okay for some frames to be late)
18:42:33: Number of times waited to send: 0, Waited for a total of 0 bytes
18:42:33: Number of b-frames dropped: 0 (-1.$%), Number of p-frames dropped: 0 (-1.$%), Total 0 (-1.$%)
18:42:33: Number of bytes sent: 0
18:42:33: 
18:42:33: Profiler time results:
18:42:33: 
18:42:33: ==============================================================
18:42:33: video thread frame - [100%] [avg time: 1.36 ms] [children: 10.7%] [unaccounted: 89.3%]
18:42:33: | scene->Preprocess - [0.0735%] [avg time: 0.001 ms]
18:42:33: | GPU download and conversion - [10.6%] [avg time: 0.144 ms] [children: 10.6%] [unaccounted: 0%]
18:42:33: | | flush - [9.56%] [avg time: 0.13 ms]
18:42:33: | | CopyResource - [0.809%] [avg time: 0.011 ms]
18:42:33: | | conversion to 4:2:0 - [0.221%] [avg time: 0.003 ms]
18:42:33: Convert444Threads - [100%] [avg time: 0.99 ms] [children: 99.6%] [unaccounted: 0.404%]
18:42:33: | Convert444toNV12 - [99.6%] [avg time: 0.986 ms]
18:42:33: encoder thread frame - [100%] [avg time: 0.026 ms]
18:42:33: ==============================================================
18:42:33: 
18:42:33: 
18:42:33: Profiler CPU results:
18:42:33: 
18:42:33: ==============================================================
18:42:33: video thread frame - [cpu time: avg 0.917 ms, total 31.2 ms] [avg calls per frame: 1]
18:42:33: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:42:33: | GPU download and conversion - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:42:33: | | flush - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:42:33: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 0]
18:42:33: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 0]
18:42:33: Convert444Threads - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 2]
18:42:33: | Convert444toNV12 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 2]
18:42:33: encoder thread frame - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:42:33: ==============================================================
18:42:33: 
18:42:33: =====Stream End: 2013-12-23, 18:42:33=================================================
18:42:45: =====Stream Start: 2013-12-23, 18:42:45===============================================
18:42:45:   Multithreaded optimizations: On
18:42:45:   Base resolution: 1680x1050
18:42:45:   Output resolution: 1120x700
18:42:45: ------------------------------------------
18:42:45: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:42:45: ------------------------------------------
18:42:45: Audio Format: 44100hz
18:42:45: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:42:45: ------------------------------------------
18:42:45: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:42:45: ------------------------------------------
18:42:45: Audio Encoding: AAC
18:42:45:     bitrate: 128
18:42:45: Using graphics capture
18:42:45: Scene buffering time set to 700
18:42:45: ------------------------------------------
18:42:45: Video Encoding: x264
18:42:45:     fps: 40
18:42:45:     width: 1120, height: 700
18:42:45:     preset: veryfast
18:42:45:     profile: main
18:42:45:     keyint: 80
18:42:45:     CBR: yes
18:42:45:     CFR: yes
18:42:45:     max bitrate: 2000
18:42:45:     buffer size: 2000
18:42:45: ------------------------------------------
18:42:45: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:42:46: SharedTexCapture hooked
18:42:47: Using RTMP service: Twitch / Justin.tv
18:42:47:   Server selection: rtmp://live-jfk.justin.tv/app
18:42:47:   Interface: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller (ethernet, 1000 mbps)
18:42:47: Completed handshake with rtmp://live-jfk.justin.tv/app in 206 ms.
18:42:48: SO_SNDBUF was at 8192
18:42:48: SO_SNDBUF is now 65536
18:42:49: RTMPPublisher::SocketLoop: Increasing send buffer to ISB 131072 (buffer: 59777 / 272384)
18:43:32: Total frames encoded: 1978, total frames duplicated: 5 (0.25%)
18:43:32: Total frames rendered: 1983, number of late frames: 1 (0.05%) (it's okay for some frames to be late)
18:43:32: RTMPPublisher::SocketLoop: Graceful loop exit
18:43:33: Average send payload: 5804 bytes, average send interval: 20 ms
18:43:33: Number of times waited to send: 0, Waited for a total of 0 bytes
18:43:33: Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
18:43:33: Number of bytes sent: 12254241
18:43:33: 
18:43:33: Profiler time results:
18:43:33: 
18:43:33: ==============================================================
18:43:33: video thread frame - [100%] [avg time: 0.728 ms] [children: 29.1%] [unaccounted: 70.9%]
18:43:33: | scene->Preprocess - [0.137%] [avg time: 0.001 ms]
18:43:33: | GPU download and conversion - [29%] [avg time: 0.211 ms] [children: 26.1%] [unaccounted: 2.88%]
18:43:33: | | flush - [24.3%] [avg time: 0.177 ms]
18:43:33: | | CopyResource - [1.51%] [avg time: 0.011 ms]
18:43:33: | | conversion to 4:2:0 - [0.275%] [avg time: 0.002 ms]
18:43:33: Convert444Threads - [100%] [avg time: 0.588 ms] [children: 98.8%] [unaccounted: 1.19%]
18:43:33: | Convert444toNV12 - [98.8%] [avg time: 0.581 ms]
18:43:33: encoder thread frame - [100%] [avg time: 0.922 ms]
18:43:33: ==============================================================
18:43:33: 
18:43:33: 
18:43:33: Profiler CPU results:
18:43:33: 
18:43:33: ==============================================================
18:43:33: video thread frame - [cpu time: avg 0.102 ms, total 202.801 ms] [avg calls per frame: 1]
18:43:33: | scene->Preprocess - [cpu time: avg 0.007 ms, total 15.6 ms] [avg calls per frame: 1]
18:43:33: | GPU download and conversion - [cpu time: avg 0.015 ms, total 31.2 ms] [avg calls per frame: 1]
18:43:33: | | flush - [cpu time: avg 0.015 ms, total 31.2 ms] [avg calls per frame: 1]
18:43:33: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:43:33: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:43:33: Convert444Threads - [cpu time: avg 0.391 ms, total 1528.81 ms] [avg calls per frame: 2]
18:43:33: | Convert444toNV12 - [cpu time: avg 0.391 ms, total 1528.81 ms] [avg calls per frame: 2]
18:43:33: encoder thread frame - [cpu time: avg 0.096 ms, total 187.201 ms] [avg calls per frame: 1]
18:43:33: ==============================================================
18:43:33: 
18:43:33: =====Stream End: 2013-12-23, 18:43:33=================================================
18:45:23: =====Stream Start: 2013-12-23, 18:45:23===============================================
18:45:23:   Multithreaded optimizations: On
18:45:23:   Base resolution: 1680x1050
18:45:23:   Output resolution: 1120x700
18:45:23: ------------------------------------------
18:45:23: Loading up D3D10 on NVIDIA GeForce GTX 760 (Adapter 1)...
18:45:23: ------------------------------------------
18:45:23: Audio Format: 44100hz
18:45:23: Playback device {0.0.0.00000000}.{554f9eca-507e-4ac3-a842-b62b1037350a}
18:45:23: ------------------------------------------
18:45:23: Using desktop audio input: Speakers (SoundMAX Integrated Digital HD Audio)
18:45:23: ------------------------------------------
18:45:23: Audio Encoding: AAC
18:45:23:     bitrate: 128
18:45:23: Using graphics capture
18:45:23: Scene buffering time set to 700
18:45:23: ------------------------------------------
18:45:23: Video Encoding: x264
18:45:23:     fps: 40
18:45:23:     width: 1120, height: 700
18:45:23:     preset: veryfast
18:45:23:     profile: main
18:45:23:     keyint: 80
18:45:23:     CBR: yes
18:45:23:     CFR: yes
18:45:23:     max bitrate: 2000
18:45:23:     buffer size: 2000
18:45:23: ------------------------------------------
18:45:23: MMDeviceAudioSource: Frequency for device 'Speakers (SoundMAX Integrated Digital HD Audio)' is 384000, samples per sec is 48000
18:45:25: Using RTMP service: Twitch / Justin.tv
18:45:25:   Server selection: rtmp://live-jfk.justin.tv/app
18:45:25:   Interface: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller (ethernet, 1000 mbps)
18:45:25: Completed handshake with rtmp://live-jfk.justin.tv/app in 254 ms.
18:45:26: SO_SNDBUF was at 8192
18:45:26: SO_SNDBUF is now 65536
18:45:38: SharedTexCapture hooked
18:45:39: RTMPPublisher::SocketLoop: Increasing send buffer to ISB 131072 (buffer: 729 / 272384)
18:46:19: Total frames encoded: 2393, total frames duplicated: 330 (13.79%)
18:46:19: Total frames rendered: 2087, number of late frames: 33 (1.58%) (it's okay for some frames to be late)
18:46:20: RTMPPublisher::SocketLoop: Graceful loop exit
18:46:20: Average send payload: 4334 bytes, average send interval: 19 ms
18:46:20: Number of times waited to send: 0, Waited for a total of 0 bytes
18:46:20: Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
18:46:20: Number of bytes sent: 11702616
18:46:20: 
18:46:20: Profiler time results:
18:46:20: 
18:46:20: ==============================================================
18:46:20: video thread frame - [100%] [avg time: 4.89 ms] [children: 84.1%] [unaccounted: 15.9%]
18:46:20: | scene->Preprocess - [0.0204%] [avg time: 0.001 ms]
18:46:20: | GPU download and conversion - [84.1%] [avg time: 4.111 ms] [children: 1.92%] [unaccounted: 82.1%]
18:46:20: | | flush - [1.55%] [avg time: 0.076 ms]
18:46:20: | | CopyResource - [0.327%] [avg time: 0.016 ms]
18:46:20: | | conversion to 4:2:0 - [0.0409%] [avg time: 0.002 ms]
18:46:20: Convert444Threads - [100%] [avg time: 0.46 ms] [children: 99.3%] [unaccounted: 0.652%]
18:46:20: | Convert444toNV12 - [99.3%] [avg time: 0.457 ms]
18:46:20: encoder thread frame - [100%] [avg time: 0.921 ms]
18:46:20: ==============================================================
18:46:20: 
18:46:20: 
18:46:20: Profiler CPU results:
18:46:20: 
18:46:20: ==============================================================
18:46:20: video thread frame - [cpu time: avg 0.067 ms, total 140.4 ms] [avg calls per frame: 1]
18:46:20: | scene->Preprocess - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:46:20: | GPU download and conversion - [cpu time: avg 0.014 ms, total 31.2 ms] [avg calls per frame: 1]
18:46:20: | | flush - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:46:20: | | CopyResource - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:46:20: | | conversion to 4:2:0 - [cpu time: avg 0 ms, total 0 ms] [avg calls per frame: 1]
18:46:20: Convert444Threads - [cpu time: avg 0.211 ms, total 873.604 ms] [avg calls per frame: 2]
18:46:20: | Convert444toNV12 - [cpu time: avg 0.211 ms, total 873.604 ms] [avg calls per frame: 2]
18:46:20: encoder thread frame - [cpu time: avg 0.112 ms, total 265.201 ms] [avg calls per frame: 1]
18:46:20: ==============================================================
18:46:20: 
18:46:20: =====Stream End: 2013-12-23, 18:46:20=================================================

Thanks in advance !

Rafeeq · Dec 24, 2013

Small update : I uninstalled everything, deleting all of my configuration files. I installed it from the very beginning, reconfiguring everything from the start. Now it's working flawlessly. I don't understand why. Maybe there was an old configuration file that was linked with the streaming ? Who knows. Now it's working. Very strange nonetheless.

Lain · Dec 24, 2013

Hm, interesting, I wish I had got to the thread sooner to figure out what was going on, though it seems you already fixed it yourself. If you figure out what specifically was the cause, please let me know if possible.

Rafeeq · Dec 25, 2013

I'll keep you updated if I ever find the cause of this.

Rafeeq · Dec 27, 2013

Ah ! I understand now why ! Since my processor is an "old" i7 920 (first generation), it tends to overclock / downclock by itself. I have an application by ASUS called "EPU-6" that can change the CPU behavior (which is normaly "automatic"). If I don't put it on high speed (max performance), it tends to "jump" by itself because Doom is not demanding but OBS is. So what happens is that there's flickering in the audio.

It happens all the time when I'm viewing blu-ray movies on VLC. If I don't set my CPU behavior at max performance, it chops. Why ? Because the CPU voltage / frequency is not fixed, it keeps moving depending on the demand : most tasks requires more voltage, less tasks less voltage.

So there you have it ! The problem comes from my CPU, not the application (even if it's interesting to know that other applications don't act like that).

Lain · Dec 27, 2013

Ah, thank you very much for letting us know, that's very interesting information. I'll have to keep that in mind and take note of that for future reference when checking logs. Again, thank you so much for investigating so thoroughly and digging up the actual cause if that is indeed the case.

Bug Report Audio is choppy while broadcasting

Rafeeq

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Rafeeq

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Lain

Rafeeq

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Rafeeq

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Lain