5 Replies Latest reply on Feb 2, 2013 12:57 AM by thetrevone

    Audio Codec AAC LC (MUSIC)

    thetrevone Newcomer

      Hi all,

      I am currently trialing both FCPRO X and PRCS6 as I am looking to move up from iMovie, I shoot on a Lumix GH2 at 1080/24p AVCHD and the reason I am drawn to PRCS6 is its ability so see the source files directly and it works well on my mac. I have a problem with PR when exporting that I do not have in Imovie regarding sound, that I hope somebody can help me with.


      I have a Sony Blu-ray player coupled up to my 55" Sony TV (no Blue-ray burner on the mac where PR is located) which I use as a test of best quality output. in iMovie I can share the final edit and copy this to a usb stick or sd card and it will play exactly as expected on the TV via HDMI. The file is as an MPEG-4  H.264  @24Mbps 1920x1080/24p and using the imovie option for audio of the aac lc music codec. I can't replicate this using PRCS6 I can get the vision to play as expected but no sound, I can't seem to find the same codec as an option in PRCS6. it appears that the LC variant is the only one that will work. is there a way of getting this codec in this programme or is there another programme that I can then pass it through to get this to work.


      Thanks in andvance and apologies if I have missed the obvious



        • 1. Re: Audio Codec AAC LC (MUSIC)
          Jim_Simon Legend

          I've found that I have to use Dolby Digital (AC3) instead of AAC with my H.264 files to get them to play via USB on my Sony BD player.  Give that a go.

          • 2. Re: Audio Codec AAC LC (MUSIC)
            thetrevone Newcomer

            Jim, thank you for your swift response, very much appreciated.

            I am afraid I have to ask if could help me a little further here, do yo mean from within PRCS6?, if so

            In the audio tab

            I only have the following otions:



            AAC+ Version2

            Unless I am missing something obvious


            Sample rate set at 48k

            Channels set to stereo

            Audio quality set to high

            Bitrate 320

            Best regards


            • 3. Re: Audio Codec AAC LC (MUSIC)
              Jim_Simon Legend

              You'll find Dolby under the H.264 Blu-ray presets.

              1 person found this helpful
              • 4. Re: Audio Codec AAC LC (MUSIC)
                thetrevone Newcomer

                Wow that was quick!

                Thank you kind sir, yes indeed it is and it should have been obvious to me from your previous answer. I am outputing as I write, fingers crossed.

                Thanks again

                Best regards


                • 5. Re: Audio Codec AAC LC (MUSIC)
                  thetrevone Newcomer

                  Hi Jim,

                  This did not work for me, my Blu-ray reacted with 'corrupt or unsupported file' I tried many combinations, but in the end had to admit defeat.

                  In desperation I tried a programme called handbrake and ran the original MPEG4 H.264 AAC file through that, keeping all the video settings the same and just altered the audio codec there to AAC(ffmpeg) as I could not see a AAC LC(MUSIC) and this option seems to have cured my problem. I need to test a bit more to see what, if any, difference there are between the iMovie version and the one edited in Pr and altered in Handbrake.

                  I wonder why Pr does not include the LC codec?

                  Thanks again for your time and your swift replies.

                  Best regards