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#52 AGC

open
nobody
5
2013-02-04
2013-02-04
stelvio
No

Hi Stephen,

please, is it possible to have back Automatic Gain Control option in the preference setting? I know that ReplayGain works better with music, but when IDJC is used for radio journalism, AGC is much more easy to use, and with a lot of unmarked tracks and no needs for HiFi quality, I think it's the best way to normalize audio levels.

Thanks a lot for this really fantastic streaming client,
bye
Stelvio

Discussion

  • The built in AGC feature was removed because of poor sound quality with it being only a single band compressor.

    It operates on the final mix but It seems to me that you need compression on your incoming audio channels if you want to achieve the best result.

    The final mix can be routed through an external application like JAMin or jack-rack to achieve the same effect as the old AGC feature but with better results. IDJC has a specific interface for this, DSP.

    Complex audio configurations can be saved and restored using a program called gladish.

     
  • stelvio
    stelvio
    2013-02-07

    I agree with you for music quality: jamin is an amazing applications for compressing audio dynamics, but it is also hard to configure and eats lots of cpu time...

    I'm using IDJC in a different scenario, for a distributed community radio with 80% speech time. We have very old/cheep hardware and a very very UNprofessional DJ speaker...

    In this case, a simple AGC on the final mix is useful to compensate any mistake made with mics, phone and tracks volume, at least in the +0..+12dB range.

    I know that jack-rack can do this kind of job, but I've never used it... so is time to learn!!

    Thanks for suggestion,
    have a nice time

    Stelvio