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Scott Dorsey Scott Dorsey is offline
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Default Sample Rate Conversion

mcp6453 wrote:
For whatever reason, I have some spoken word cassettes that were
recorded at 15/16 IPS that I want to transfer to digital. What's the
best way to digitally correct the tempo and pitch? Using Audition, I
recorded a segment at 88.2 and converted the playback sample rate to
44.1. Tempo and pitch are correct. Is that procedure the best way? Doing
them in software, at least using Audition, is not the way to go.


That's probably the easiest solution. Realize of course that the equalization
is going to be all screwy since you have just doubled all the eq constants in
the process of playing it back faster. And of course all of the analogue
electronics that roll off at 20kc are now rolling off at 10kc. But for
spoken word that might not be any worry.

I know that the cassette machines that folks used to use for surveillance
applications often had super narrow track heads in them in order to get
better intelligibility at very low speeds. It might be nice to have such
a thing. But if you don't, and it sounds okay, you should be fine.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."