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Well if they're that bad and you're really strapped for space, myou might want to look at low-bitrate opus? Their newest update is focused on low-bitrate vocal fidelity. See here for more: https://people.xiph.org/~jm/opus/opus-1.2/

    

-------- Original Message --------
From: Shai Drori <[log in to unmask]>
Sent: Sunday, July 9, 2017 02:19 AM
To: [log in to unmask]
Subject: [ARSCLIST] Small file formats

>
> Hi Gang
> Seeing the wisdom of the group. I am digitizing log tapes for a client.
> Tapes are 40 tracks each generating 400GB per tape at 48kh/24bit. Obviously
> there is nothing on those 15/32" IPS tapes that needs that fidielity, and
> my client doesn't have the storage capacity for all her tapes (lot of
> them). So the question is what format should we compress to. MP3 at 256KB/s
> is one option, staying with wave but reducing the sampling to 22Khz/16bit
> is another (not sure it's small enough), maybe even 11Khz? Other options?
> As you can imagine the audio is worse than AM but I do want to keep it as
> close to the original as possible. Manufacturer claims top freq at around
> 3Khz.
> בברכה,
> שי דרורי.
> מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ
> Cheers
> Shai Drori
> Expert digitization services for Audio Video
> Hi Res scanning for film 8mm-35mm
> Timeless Recordings Music Label
> www.audiovideofilm.com
> [log in to unmask]
> Tripadvisor level 5 contributor, level 10 restaurant expert
>