Those of you mixing audio for the Union Station interactive timeline should make sure that your sample rate is 48,000 Hz so it functions better with the 29.97 fps video recording that we're using in After Effects.
If you're recording with your MBP or iPhone they have been recording at 44,100 Hz for me. You can convert using Soundbooth without any issues.
Check it out:
| 48,000 Hz | The standard audio sampling rate used by professional digital video equipment such as tape recorders, video servers, vision mixers and so on. This rate was chosen because it could deliver a 22 kHz frequency response and work with 29.97 frames per second NTSC video - as well as 25 frame/s, 30 frame/s and 24 frame/s systems. With 29.97 frame/s systems it is necessary to handle 1601.6 audio samples per frame delivering an integer number of audio samples only every fifth video frame.[11] Also used for sound with consumer video formats like DV, digital TV, DVD, and films. The professional Serial Digital Interface (SDI) and High-definition Serial Digital Interface (HD-SDI) used to connect broadcast television equipment together uses this audio sampling frequency. Much professional audio gear uses (or is able to select) 48 kHz sampling, including mixers, EQs, compressors, reverb, crossovers and recording devices such as DAT. |
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