[Music] - Better sound quality with WASAPI

Discussion in 'Improvement Suggestions' started by mr.duck, January 2, 2009.

  1. mr.duck

    mr.duck Portal Member

    Joined:
    December 31, 2008
    Messages:
    44
    Likes Received:
    2
    Ratings:
    +2 / 0
    An option to use WASAPI output in windows vista, along with disabling all digital processing such as volume control (digital volume control is bad, you loose resolution). The point of this is for bit perfect output for some seriously good music playback.

    Also a quality resampler would be good. SoX is open source and it's resampling quality is 1st rate... SoX - Sound eXchange | Resampling.


     
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. anvandarnamn

    anvandarnamn Portal Pro

    Joined:
    February 15, 2007
    Messages:
    84
    Likes Received:
    3
    Ratings:
    +3 / 0
    Home Country:
    Sweden Sweden
    wasapi would be exellent :) foobar currently supports this and it rocks
     
  4. lloydsmart
    • Premium Supporter

    lloydsmart MP Donator

    Joined:
    January 10, 2009
    Messages:
    134
    Likes Received:
    4
    Location:
    UK
    Ratings:
    +4 / 0
    Home Country:
    Wales Wales
    Another vote here for WASAPI! :)
     
  5. SpudR
    • Team MediaPortal

    SpudR Documentation Group

    Joined:
    July 27, 2007
    Messages:
    2,604
    Likes Received:
    449
    Occupation:
    CTO, MD
    Location:
    Yorkshire, UK
    Ratings:
    +676 / 2
    Home Country:
    England England
    Show System Specs
    Isn't that the spicy stuff they put in Sushi??

    :D
     
  6. tourettes
    • Premium Supporter

    tourettes Retired Team Member

    Joined:
    January 7, 2005
    Messages:
    17,301
    Likes Received:
    4,595
    Ratings:
    +4,810 / 3
    Wasn't that something with BI (you know, those guys and girls that your mommy did warn about) not with the PI (the math guys...).
     
  7. edterbak
    • Team MediaPortal

    edterbak Test Group

    Joined:
    March 4, 2008
    Messages:
    2,114
    Likes Received:
    736
    Gender:
    Male
    Occupation:
    Researcher
    Ratings:
    +1,178 / 5
    Home Country:
    Netherlands Netherlands
    Show System Specs
    YES!!! +1

    This would be awsome.
    If I understand it correctly; WASAPI would enable in-build propper playback of Super Audio CD's (I have a couple). Also raw DTS/CUE/WAV files with 32 till 192khz will be playable (in theory and if supported by soundcard) and sent directly, as is, to the receiver. All of this WITHOUT silly windows touching it. :D
     
  8. mr.duck

    mr.duck Portal Member

    Joined:
    December 31, 2008
    Messages:
    44
    Likes Received:
    2
    Ratings:
    +2 / 0
    Unfortunately, SACD is encoded with a DSD stream not PCM. To be able to play it you would need to modify a special SACD capable player to tap the digital data stream. Once you do that, you can convert it into a PCM file with minimal sound quality loss. They don't make it easy do they?
     
  9. edterbak
    • Team MediaPortal

    edterbak Test Group

    Joined:
    March 4, 2008
    Messages:
    2,114
    Likes Received:
    736
    Gender:
    Male
    Occupation:
    Researcher
    Ratings:
    +1,178 / 5
    Home Country:
    Netherlands Netherlands
    Show System Specs
    Getting off topic a bit... But its probably informative for anyone interested.

    I didnt know that.. :) thanks for the explenation.
    Question: I have a Yamaha receiver which can decode DTS(44.1/48khz) and is capable of handling 32/192khz inputs (pcm). Is it still needed to encode this DSD stream to make it usable for the receiver? (Is DSD something else than DTS? Something phillips/sony made?)

    Regards.
     
  10. mr.duck

    mr.duck Portal Member

    Joined:
    December 31, 2008
    Messages:
    44
    Likes Received:
    2
    Ratings:
    +2 / 0
    Yeah DSD as found on SACD is nothing like 24bit 192KHz. DSD is only 1 bit but very high freq like >2MHz. The DAC chips inside a SACD player that convert this data to audio might have a DSD input, but if they do I believe they need to convert it to regular PCM internally (like 24bit 192KHz), before it can produce the analog audio.

    The Yamaha receiver will need the DSD data to be converted into PCM to be able to decode it. You can send the PCM data over spdif to the receiver. DSD has nothing to do with DTS, that is somthing else completely.
     
    • Like Like x 1
  11. diablosv

    diablosv Portal Member

    Joined:
    November 1, 2008
    Messages:
    47
    Likes Received:
    5
    Ratings:
    +5 / 0
    Home Country:
    Just wanted to add my interest in WASAPI support as I have just started using it in foobar and I swear it sounds better than ASIO, since it is a Vista feature it should work with all soundcards that have a Vista driver!
     
Loading...

Users Viewing Thread (Users: 0, Guests: 0)

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice
  • About The Project

    The vision of the MediaPortal project is to create a free open source media centre application, which supports all advanced media centre functions, and is accessible to all Windows users.

    In reaching this goal we are working every day to make sure our software is one of the best.

             

  • Support MediaPortal!

    The team works very hard to make sure the community is running the best HTPC-software. We give away MediaPortal for free but hosting and software is not for us.

    Care to support our work with a few bucks? We'd really appreciate it!