May 10, 2009

Building the pod – episode 132

Filed under: !Podcasts,AATranslator,Building the Pod,Equalization,Graphic — Bruce Williams @ 13:37

This week, Michael Rooney has finished his new program, AATranslator, which will the allow the import of various other DAW session formats into Audition.
Then, we look at the next item in the ‘Filters and EQ’ section… the graphic EQ.

The graphic EQ in 10 band mode. Each filter covers an octave.

The graphic EQ in 20 band mode. Each filter covers half an octave.

The graphic EQ in 30 band mode. Each filter covers one third of an octave.

The waveform display, after a cut at 8kHz, in 10 band mode. Notice how far the dip extends to the left and right of the centre frequency (it covers a full octave).

The spectral display, after a cut at 8kHz, in 10 band mode. Notice the area of the display which is NOT yellow, but rather orange (signalling a drop in amplitude).

The waveform display, after a cut at 8kHz, in 30 band mode. Notice how far the dip extends to the left and right of the centre frequency (it now only covers a third of an octave).

The spectral display, after a cut at 8kHz, in 30 band mode. Notice how the orange section of the display is shorter, because the amplitude drop is narrower than in 10 band mode.

Grab the swept sine wave here.

August 17, 2008

Sine Language – episode 095

m4s0n501

This week, so many e-mails to answer, I couldn’t get to them all!
Jim Addie chimed in with some follow up on DC offset (thanks, Jim!),
Steve Mayfield wondered if I’d got my HDMI issues sorted (Yes! Thanks, Steve).
He offered a link to another site that reviewed some hand held field recorders, registered his ‘vote of confidence’ for a video podcast for SL100, and expressed his appreciation of the new audio2u.com podcast imaging.
Then, we heard from Ike Tamigian who owns the Tascam 122L audio interface and reckons that “for the money you can’t go wrong”. Thanks Ike!
Then, Noel Payne asked about what eq filters (high pass, low pass, notch, band pass etc) to use under what circumstances. And after I finished editing the podcast, I realised there’s more I need to add to this topic, next week. Stay tuned, Noel!
And finally, Ron Eastwood wrote in with a photography analogy regarding sample rate and bit resolution, and asked what is the most important factor (with regards audio quality)?