Pre-Emphasize Setting

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  • December 9, 2009 at 3:42 pm #580
    Anonymous
    Guest

    Dear Leif;
    can you make BBP have separate setting of Pre-Emphasize;
    so Encoder (Stream) Sound and MPX Output can be have different value.
    -or-
    maybe you have de-emphasize plugin for Encoders Plugin.

    and… here our experiment stream: http://radio.pitalokafm.com
    (click listen)

    Thank you…..

    December 10, 2009 at 2:57 am #9142
    Leif
    Keymaster

    Hi Ferry!

    This is not possible. Pre-emphasis is not the last part of the chain — in fact different pre-emphasis settings change some multiband settings to optimize the sound quality. The actual pre-emphasis is then applied after the breakaway core, before the clipper.

    So, even though it would be possible to share the AGC between two different pre-emphasis chains, that would save perhaps 5% cpu, and increase code-complexity tremendously. Instead, I opted to just keep them completely separate.

    Running two separate instances, you can set different pre-emphasis curves, and even set different presets or settings!

    Best,
    ///Leif

    December 10, 2009 at 8:30 am #9143
    Anonymous
    Guest

    Thanks Leif…. 🙂

    perhaps you have dsp_de-emphasize plugin?
    just like dsp_attenuator_2dB.dll before Edcast on Encoders rack…

    Warmest regards,
    Ferry

    December 11, 2009 at 12:15 pm #9144
    Leif
    Keymaster

    Hi Ferry!

    De-emphasizing is built in. The DSP plug-in chain will receive de-emphasized audio, whether de-emphasis is enabled or not (for the main l/r output)!

    ///Leif

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