[Ivan Myles]

The noise might be coming back if you encoded preview files that were created before the Denoiser effect was applied. If that is not the case, look for additional noise sources in the audio.

The best method is to view a frequency distribution to identify any unwanted noise. It is a little easier in Adobe Audition, if you have access. In Premiere Pro use the Spectral Noise Reduction effect to see the frequency distribution, even if you use a different effect to address the problem.

Apply the Spectral Noise Reduction effect, expand the Custom Setup section, and play the sequence to create a graph. Note the line just below 16kHz in the following example:

In this example the Spectral Noise Reduction effect was used to create a filter at 15700Hz:

Depending on your situation, you could also use a Notch or Lowpass audio effect to filter out the hiss.

[Ivan Myles]

That would be the safest approach given that Vimeo movies are highly compressed (unless you have the original uploaded versions). You might also try 854×480 if the 360p file is relatively high quality.

[Ivan Myles]

Not sure if this is the right way, but I would sync the first video frame where the clapper is closed to the start of the peak wave (i.e. the base or zero-point preceding the peak). Enable “Show Audio Time Units” in the Timeline panel to align the waveform more precisely. Verify the sync at other points in the video.

[Ivan Myles]

Spec details will vary by broadcaster. 25/50 vs 30/60 will depend on region. This post includes a link to Comcast ad requirements, if that helps.

[Ivan Myles]

You’re welcome.

[Ivan Myles]

Click the stopwatch next to the parameter in the Effects panel prior to making any changes.

[Ivan Myles]

You’re welcome.

[Ivan Myles]

What version of Premiere Pro are you using? There was a recent update to CS6 to address problems with in and out points in the source monitor. Try updating to see if that resolves the issue.

If you set the in and out points in the source monitor, can you drag the file from the Project panel onto the timeline?

With regard to workflow, creating a Dynamic Link from Premiere to the AE project works well for me. If both files are open simultaneously, save the AE project whenever changes are made. The updates will be reflected in Premiere relatively quickly.

[Ivan Myles]

Create an audio track and an audio submix track for each camera and move the clips accordingly. For example, move audio for all MC1 clips onto audio track 1, and map the track to audio submix 1. Move the audio for all all MC2 clips to audio track 2, and map the track to audio submix 2. etc. Then adjust the submix tracks as required.

[Ivan Myles]

A few questions:

– Please clarify whether the AE comps contain image sequences, or were exported as image sequences. What format was used (PNG, JPEG2k, DPX, other)?
– Are there any effects applied to the clips in Premiere?
– Is GPU acceleration enabled?

There are a variety of potential causes. Please export a short test clip (a few seconds in length) containing some of the problem footage and post the samples here. The requested encoder settings are as follows:

General
Format: H.264
Maximum Render Quality: Enable
Use Previews: Disable

Multiplexer Tab
Multiplexer: MP4
Stream Compatibility: Standard

Video Tab
Profile: High
Key Frame Distance: 15
Maximum Depth: Enable

Test 1: Level 3.1, Target BR=12, MaxBR=17.5
Test 2: Level 4.1, Target BR=24, MaxBR=36
Test 3: Level 4.1, Target BR=40, MaxBR=60

If none of the files looks good, please also create a test clip with the max settings you used previously.