Mastering audio for broadcast television.
December 20, 2005 7:19 PM Subscribe
Mastering audio for broadcast television.
I have a freelance editing project that has come up quickly. I need to take raw audio files (music and 'man-on-the-street' style interviews) and prepare them for broadcast TV. I know a decent amount about compression, noise gates, limiting, etc., just not in the context of television.
What else do I need to know to pull this off? Are there frequency limitations I should be aware of? How hard do I need push the compression? Are there tricks to separating voices from crowd noise? Many thanks!
I have a freelance editing project that has come up quickly. I need to take raw audio files (music and 'man-on-the-street' style interviews) and prepare them for broadcast TV. I know a decent amount about compression, noise gates, limiting, etc., just not in the context of television.
What else do I need to know to pull this off? Are there frequency limitations I should be aware of? How hard do I need push the compression? Are there tricks to separating voices from crowd noise? Many thanks!
Best answer: Television:
12 dB range.
Keep foreground ave ~ tone, max + 6 tone
Background ave -6 from tone.
So if tone is -20.... that's foreground @ -20 (-14 max), and background @ -26 (ranging from max of -23ish to -32)
Crowds are very, very difficult. To isolate you should have gotten good location sound. The problem is the vocal frequences of 'crowds'. They're the same as your subject, of course!
If it's 'street sounds'...try dampening using an EQ below about 250hz, and above 1500hz.
posted by filmgeek at 8:09 PM on December 20, 2005
12 dB range.
Keep foreground ave ~ tone, max + 6 tone
Background ave -6 from tone.
So if tone is -20.... that's foreground @ -20 (-14 max), and background @ -26 (ranging from max of -23ish to -32)
Crowds are very, very difficult. To isolate you should have gotten good location sound. The problem is the vocal frequences of 'crowds'. They're the same as your subject, of course!
If it's 'street sounds'...try dampening using an EQ below about 250hz, and above 1500hz.
posted by filmgeek at 8:09 PM on December 20, 2005
Response by poster: To isolate you should have gotten good location sound.
I wish I had been around during the shoot, but I'm working with what they gave me. Strangely, one channel of the audio is much clearer than the other, so I'm just mirroring the good one over the bad one.
Thanks for the tips.
posted by erebora at 7:13 PM on December 21, 2005
I wish I had been around during the shoot, but I'm working with what they gave me. Strangely, one channel of the audio is much clearer than the other, so I'm just mirroring the good one over the bad one.
Thanks for the tips.
posted by erebora at 7:13 PM on December 21, 2005
This thread is closed to new comments.
Ideally you have a switch to check the sound on a variety of both good and bad speakers.
posted by StickyCarpet at 7:28 PM on December 20, 2005