On Sep 12, 6:33 am, "Peter Larsen" wrote:
wrote:
Samplerate?
Microphone?
Initial sample rate was 44.1 KHz 24 bit. Target was 11 KHz 16 bit,
hence the 5 KHz bandlimiting.
Initial samplerate limits detectable components to 21.5 kHz
Microphone was never disclosed, though I asked. Recording was a voice
actress at Planet Sound.
Undocumented microphones generally limit detectable components to 17 kHz.
Which is to say that you know nothing about the upper frequency limit of the
white noise components in speech based on that recording.
Bob Smith
Kind regards
Peter Larsen
Well, the practical matter was that the original recording sounded
proper to the German client and the varsious downsampled versions
lisped. I spent hours fabricating sounds, sometimes sample by sample,
to achieve a 5 KHz bandlimited version that was acceptable. Of course
this whole diversion could have been avoided had the original target
playback system supported a higher sample rate.
If the situation were to be repeated, what microphone, preamp, A/D
converter and sample rate would pass muster in your opinion?
bobs
Bob Smith
BS Studios
we organize chaos
http://www.bsstudios.com