Codec Bitrates?

This is a discussion on Codec Bitrates? within the C# Programming forums, part of the General Programming Boards category; I have posted before asking about recording mp3's, but have decided to record wma's using the wmencoder. The question I ...

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    Codec Bitrates?

    I have posted before asking about recording mp3's, but have decided to record wma's using the wmencoder. The question I have now is about the codec bitrates. In order to encode, a profile has to be set for the Source Group. I displayed a list of the Profile Names in the profile collection, and it is as follows:

    Windows Media Video 8 for Color Pocket PCs (225 Kbps)
    Windows Media Video 8 for Color Pocket PCs (150 Kbps)
    Windows Media Video 8 for Dial-up Modems or Single-channel ISDN (28.8 to 56 Kbps
    )
    Windows Media Video 8 for LAN, Cable Modem, or xDSL (100 to 768 Kbps)
    Windows Media Video 8 for Dial-up Modems or LAN (28.8 to 100 Kbps)
    Windows Media Video 8 for Dial-up Modems (28.8 Kbps)
    Windows Media Video 8 for Dial-up Modems (56 Kbps)
    Windows Media Video 8 for Local Area Network (100 Kbps)
    Windows Media Video 8 for Local Area Network (256 Kbps)
    Windows Media Video 8 for Local Area Network (384 Kbps)
    Windows Media Video 8 for Local Area Network (768 Kbps)
    Windows Media Video 8 for Broadband (NTSC, 700 Kbps)
    Windows Media Video 8 for Broadband (NTSC, 1400 Kbps)
    Windows Media Video 8 for Broadband (PAL, 384 Kbps)
    Windows Media Video 8 for Broadband (PAL, 700 Kbps)
    Windows Media Audio 8 for Dial-up Modem (Mono, 28.8 Kbps)
    Windows Media Audio 8 for Dial-up Modem (FM Radio Stereo, 28.8 Kbps)
    Windows Media Audio 8 for Dial-up Modem (32 Kbps)
    Windows Media Audio 8 for Dial-up Modem (Near CD quality, 48 Kbps)
    Windows Media Audio 8 for Dial-up Modem (CD quality, 64 Kbps)
    Windows Media Audio 8 for ISDN (Better than CD quality, 96 Kbps)
    Windows Media Audio 8 for ISDN (Better than CD quality, 128 Kbps)
    Windows Media Video 8 for Dial-up Modem (No audio, 28.8 Kbps)
    Windows Media Video 8 for Dial-up Modem (No audio, 56 Kbps)
    Windows Media 8 Fair Quality based VBR for Broadband
    Windows Media 8 High Quality based VBR for Broadband.
    Windows Media 8 Best Quality based VBR for Broadband.
    Screen Video High (CBR)
    Screen Video/Audio High (CBR)
    Screen Video (CBR)
    Screen Video/Audio
    Screen Video Medium (CBR)
    Screen Video/Audio Medium (CBR)

    When I set the Profile to Audio for Dial-Up(Mono, 28.8), the resulting file has a bitrate of 20kbps. I am wanting to encode to a smaller bitrate to create a smaller file. any ideas on how to edit the bitrate??????????????

    Thanks,
    Kendal

  2. #2
    Pursuing knowledge confuted's Avatar
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    20 kb/s is a pretty horrible bitrate already. if you encode any lower than that, it's going to sound like a bowl of rice krispies. you have to have somewhere to store the audio data...
    Away.

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    All this is going to be used for is recording transcription in the medical field. Not for music. I am trying to keep the file sizes down because some of the transcriptions can last up to 15 minutes long.

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