Re: wave with 96000hz 24bit

Tech-Archive recommends: Speed Up your PC by fixing your registry

From: Chris P. [MVP] (msdn_at_chrisnet.net)
Date: 11/08/04

  • Next message: Satire: "Asf Reader DirectShow Filter"
    Date: Mon, 8 Nov 2004 15:50:22 -0500
    
    

    On Mon, 8 Nov 2004 19:04:43 +0100, DR wrote:

    > Some sound card drivers include ACM drivers. On computers without sound card
    > (e.g servers) resampling isn't supported by ACM (I think).
    >
    > I sold a conversion tool to a customer who is complaining that 96khz is not
    > supported. It uses ACM to resample.

    If the sound card install adds it's *own* ACM driver then yes it is
    possible. The default Microsoft ACM driver only supports up to 48kHz, and
    does not get installed until the first piece of sound hardware is
    installed. The kmixer itself supports higher samplerates (under 2000,XP)
    but that is only used for playback.

    You can see all the audio ACM codecs on the system by looking under "Sounds
    & Audio Devices" in the control panel, going to the Hardware tab and
    looking under "Audio Codecs". The Microsoft PCM ACM cannot be replaced but
    additional codecs that have the same function can be loaded and set with a
    higher priority.


  • Next message: Satire: "Asf Reader DirectShow Filter"

    Relevant Pages

    • Re: Combining video+audio clips ?
      ... and AC3 audio but that the AC3 codec was not installed. ... VLC comes with a large variety of built-in codecs. ... there are old-style ACM codecs. ... DirectShow filters often, but not always, have a .ax file extension ...
      (rec.video.desktop)
    • Re: wave with 96000hz 24bit
      ... Yes, but on my computer ACM cannot convert from 96khz,24bit to any other ... If I add a better sound card will it be able to do this? ... > Playback of 96/24 files will work if you have sound hardware that supports ... The ACM is only used where necessary to convert from a format the ...
      (microsoft.public.win32.programmer.mmedia)
    • Re: wave with 96000hz 24bit
      ... Some sound card drivers include ACM drivers. ... resampling isn't supported by ACM. ... I sold a conversion tool to a customer who is complaining that 96khz is not ...
      (microsoft.public.win32.programmer.mmedia)
    • Re: wave with 96000hz 24bit
      ... > work when a sound card is installed, ... Playback of 96/24 files will work if you have sound hardware that supports ... The ACM only supports up to 48kHz. ...
      (microsoft.public.win32.programmer.mmedia)
    • After unchecking codecs, MM wont start - says it cant find audio
      ... after adding audio. ... I followed the advice on papajohn.org to uncheck some ... I'm pretty sure I didn't remove any codecs specific to my sound card ...
      (microsoft.public.windowsxp.moviemaker)