Question about Marantz CDR420 CD Recorder

2 Answers

Muddy playback of MP3 recording

When monitoring the recording, it sounded great but played back muddy. We only had the option of RCA cable for aux. Is there a way to improve the recording quality; is it a playback problem; what to do in future? Microphones were connected to a self-contained Bosch system, not a mixer

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  • cattwitch Jun 04, 2010

    I want to know what can be done to help the poor recording - to improve it.

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  • Master
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Do you have the ALC feature (Automatic Level Control) turned on. If not, set it on and check.

Posted on Jun 04, 2010

  • cattwitch Jun 04, 2010

    That feature was on that setting for the recording


    Later recordings - which turned out better - were placed on Limiter.


    We believe the problem occurred because the input was ONE RCA input and the internal recording setting was set at Stereo. The L+R setting was used, too. So we think there may have been a conflict. It does not fully explain why the monitoring was good and the playback was bad...


    Still, my main concern now is how to salvage - even slightly improve - the muddy recording so that the voices are more easily understood. If possible.

  • Muzahura Frank Jun 04, 2010

    fixing your already recorded file may not be possible because of the GIGO ( Garbage in = Garbage Out) aspect. however, you could also do it with the ALC feature off and set it up manually by adjusting the controls. and like you noted, the used audio lines could have caused that distortion. download this guide if you don't already have it.

    regards


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  • Marantz Master
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Sounds liek the recording was not direct in a sense from computer to CD quality so the bit rate suffered.. I would suggest a computer in the middle of this recording env. to adjust bit rate a good bit rate would be 128k at least for the minium.

A Muddy playback was probably from a muddy type of recording, best results is you a computer to upscale it to a CD quality solution next time.

Thanks and please do click the accept buttonf for my efforts.

Posted on May 30, 2010

  • 1 more comment 
  • cattwitch May 30, 2010

    Bit rate on recorder was set to 128. Is there anything we can do to reduce the muddy quality of current recording (salvage)? How can we use a computer to do that? Have looked into some audio programs to reduce noise, but noise is not really the problem.
    The Bosch mic system was direct into the recorder.
    Other advice that might make your first email comments more useful?

  • Grand Canyon Tech
    Grand Canyon Tech Jun 04, 2010

    I would use the computer via a audio out or capture device to salvage. See the program you might been using is not one of quality, more like studio.



    let me know i will give you more ideas.

  • cattwitch Jun 04, 2010

    I would need a bit more info, to be sure.
    The recording was direct to the Marantz. It was in MP3 format and can be loaded onto a computer. what kind of "capture device" are you talking about?
    I tired some free downloadable programs that claimed they could fix everything but they did not improve quality - it was more like trading for a different level of muddy or went to scratchy.
    Thanks for more info to come...

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