Since we're using WASAPI, only windows vista is compatible although it should also work with windows seven but i really don't know if its the case.
I'm going to show you how to configure The KMPlayer to use the WASAPI via reclock. It is very simple. Why The KMPlayer ? Because its a wonderful player, the best so far i have tested. It have many features and a total control of the video/audio that he play. It his a free player made by a south-korean engineer but since 2008 it with a "collaboration" with pandora TV.
Click here for a summarize of the features.
Reclock is obviously an re-clocker and more interesting, an audio renderer. It is also completely free.
From their old site (now abandoned) :
|What is it ?
The purpose of ReClock is to definitely get rid of jerky playback of AVI and MPEG material on a PC (or a HTPC driving a TV, a flat panel, or a video-projector). It's a DirectShow filter which is loaded in place of the default directsound audio renderer.
It provides a new reference clock that is locked to the video card hardware clock, in order to ensure that frames are played at the exact speed of what is expected by the video card vertical sync.
It also provides a frame rate adaptator for media files that do not match a multiple of the video card refresh rate (ex: playback of 23,976fps IVTC NTSC on a PAL TV).
The combination of the two will give you the true experience of smooth playback with your PC.
Finally it is an audio renderer with hardware or software rate adaptation in real-time, multi-channel audio, audio timestretching (pal speedup compensation) and dynamic range compression capabilities.
For a full description of ReClock, please read carefully the README file in the distribution. There is also a little FAQ at the bottom of the page that answers common questions.
First of all you obviously need to download the KMPlayer look on their forum for the last version to download.
You also need to download the last version of Reclock, see also on their forum for the last version
3/ The Setup
You shouldn't have any problem installing them, its very easy, KMplayer use a wizard for the installation and with reclock its basicaly a copy of files.
Now configure Reclock with the shortcut on the desktop. ("C:\Program Files\ReClock\Config.exe")
Set the device you wish to use (sound card or DAC).
Now set the audio interface and choose WASAPI like in the image, set other settings you wish to use or experiment.
Now open the KMPlayer and right click on the player itself, and activate the advanced menu like in the picture then enter the preferences menu.
Now go to the "audio processing" section and select "Reclock" as a audio renderer, you can use the config button next to it to further customize the renderer.
Try to deactivate any audio plugin like the "automatic volume control" but WASAPI normally bypath all the audio features. But do as your heart tell you, don't forget that your brain is the only judge.
Explore the other sections and sub-sections at your convenience to explore all the many wonderful features the player has to offer.
Play some audio or video to test the player, don't forget that a bit exact player have absolutely no volume control (only active or mute, on or off) so try to move the volume control to see if it affect the volume (from both vista mixer and kmplayer).
Some useful shortcuts :
space : play/pause
left arrow : 5 seconds backward
right arrow : 5 seconds forward
control + left arrow : 30 seconds backward
control + right arrow : 30 seconds forward
crtl + alt + A : Video Screenshot
alt + X : show/hide subtitles
f : next video frame
shift + f : reverse video frame
downside : Some audio format are not longer supported. But i think it can be fixed somehow.
The volume bar not affect the sound, being 100%,54%,12% or mute its the same (only mute on the device cut the sound).
Bit perfect output :
4/ The more important : The audio quality
Comparing to foobar2k with WASAPI plug-in the difference in sound quality is HUGE ! (relatively) You don't need to listen several time to hear a little difference its really strike at you !
In WASAPI foobar, the sound is deformed by the volume,as a cheap pre-amp, a proof this is not a genuine bit exact playback, the sound have distortion, sound digital, being harsh and the instruments don't blend together in a natural way, to say the least.
The first thing i notice when i launch a album in KMPlayer is the smoothness of the music, its much more closer to a music being played by instruments !
The instruments now have a holographic sound of their own body, its so realist you can easily "touch" the instruments with your ears. The instruments have now a darker blackness between notes.
The voice is less forward, less detach of the instruments but now blend with them naturally.
The music in itself has more emotion and it is less prone to ear fatigue.
The bass is also fuller and with more impact, that really amaze me !
I didn't thought that this will make such a huge difference and i wasn't even thinking i will be able to even hear it !
I was using kmplayer since long time but solely as a video player and foobar for audio, but now it will do both, at least on my vista setup.
KMPlayer have outstanding video player feature like my favorite : it can keep the video frame to its original size on full-screen, so its does not deform the video.
And SO many things its very long to tell all of them and many are still unknown to me. You can check this manual if you want more information.
I'm now rediscovering again my computer audio collection.
Tested on a audio-gd compass and AKG K271 via coaxial.