Steps To Repair Smpte 302m Audio Codec


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    You may encounter an error pointing to the smpte 302m audio codec. There are several ways to solve this problem, and we will talk about them a little later.

    1.1 This primary defines the AES3 data transmission method in MPEG-2 traffic forTV applications. For television applications, they have an AES3 frame rate of 72 kHz.

    1.2 Some applications may require digital audio recording using Linear PCM (Pulse Modulation) code in combination withcompressed video with MPEG-2 4: 2: 2 profile. The MPEG audio standard definesAudio, but unable to set uncompressed audio for buggy transport systems and MPEG-2. This standardextends the MPEG standards to allow the requirement for the transmission of AES3 fields, which may consist ofLinear PCM (with 48 ksample / s audio) or data in AES3 format.



    12/25/2012, PM

    Chief Technician Avatar


    Date joined: December 2001

    Location: New York

    Posts: 6,981

    Topic: Audio SMPTE 302M AES3


    Originally posted



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  • As I said, I’m not an expert, maybe the other … does the boss know?

    I was not asked. If your patient does not need a completely new Transport Stream (TS) in the audio industry, I would like to ask if this is really what consumers want or need. The difference is that this is definitely what you want, but if you are going to marry whoever you were with the video as much as you want, then this is not at all what you want. This multi-mono company wants the audio recording data to be clearly labeled so that the person combining audio and video has the flexibility to map channels using the SMPTE 302M and then use their encoder to handle the available output of their choice.

    I know it can be tricky when wondering what your customer is driving, but I think Postman is standing here relative to the track. It doesn’t make sense for you to create a transport stream of SMPTE 302M audio files, if you demux it, connect to video and then Multiplex audio and video clips together.

    I don’t have access to FCP or Compressor to test these workflows. It might work, but as mentioned above, it looks like the program is not crashing. Even if FCP or Can Compressor does it, they really need a tool to make sure it’s done safely. Player Quicktime is not a new quality control tool. Generally, you will probably need a Tektronix parameter (or similar) to check the original file and the SMPTE 302M’s built-in bias current, which might be correct.

    smpte 302m audio codec

    Jonathan S. Abrams, CEA, CEV, CBNT
    Apple Certified – Technical (v10.5 coordinator), professional support (v10.6 – v10.


    Topic: Audio SMPTE 302M AES3
    smpte 302m audio codec

    This doesn’t count as something I’ve been asked to do. If your client currently only wants the Audio Transport (TS) approach, I would ask them if they can really do what they need or need. The only difference is that it can be the amount that youm is needed, but if it turns out that you are getting married with the things that you provide with the video, at this stage you will not feel the need. What they need for multi-mono is clearly labeled audio files so that the person who marries stereo and video can display programs via SMPTE 302M and then let their preferred encoder handle all the output for them.

    I know it will be difficult if you wonder about the solutions your client wanted, but I have reason to believe Postman is in the right place. It doesn’t really make sense to create an SMPTE 302M transport audio stream if you need to demux it, connect to video, and mux the audio and video together.

    I don’t have access to FCP and to test this workflow. This will work, but as mentioned above, there really is no leak. While FCP or Can Compressor certainly can, you will need a tool to make sure the task was completed correctly. Player Quicktime is not a good quality control solution. You will probably need some kind of Tektronix domain ( Or equivalent) to check the output file and be sure to have a built-in SMPTE 302M transport stream for this.

    Originally written

    PostmanI am

    As I said, I’m poorly trained, maybe someone else knows … Chief?


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