Slow-motion with Vegas 6

[seven_deuce offsuit]

What are some of the best ways to eliminate the echoes (if that's the right term to use) of a stretched audio track? I tried experimenting with this using the Pitch Shift effect to lower the audio to the appropriate tone, and in the process use this plug-in to help lessen the echoes in the audio. I think this works ok, but are there better ways to do this? I'm trying to get a much more smoother sound with no echoes and with the right low-tone voice. I think Pitch Shift helps with the tone, but I'm still searching for an answer for my audio echo problem.

[guns1inger]

Stretching more than 10% becomes difficult. Using the time stretch facility is sound forge, pitchshifting does not become necessary, and the results can be very clean, even past 10%. But it is also dependent on the original quality, to some degree.

How much of a time stretch are you attempting ?
What method are you using ? If you are simply dragging the end of the track out, try using the non-realtime timeshift feature instead

[seven_deuce offsuit]

I'm stretching it out by dragging it (stretching it to its max). Do I apply the Non-realtime feature first before dragging? I only use the Pitch Shift to lower the tones of the voices in the audio, unless this feature automatically does it for you?

[guns1inger]

The timeshift effect will maintain the pitch, however you need to be realistic about how far you stretch it. After 10%, things get dicey. Note also, this is an audio only effect, so it won't change the video.