Telefone system export

GoldWave general discussions and community help

Telefone system export

Postby luckycoo » Thu Jan 10, 2019 9:54 am

Hello you professionals
I am allowed to record and export announcements for our telephone system.

The specifications are:
64 kbits, 8 bits, 8 khz, mono, a-law

How do I get Goldwave to spend just that?

Thanks for the tips, greeting Lucky
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Re: Telefone system export

Postby Tristan » Thu Jan 10, 2019 1:24 pm

Have you read the demo instruction manual, or tried the demo?
If I can read the manual, so can you.
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Re: Telefone system export

Postby luckycoo » Fri Jan 11, 2019 1:27 am

Yesss, I have read and still I can not find out. The files are either in stereo or 16bit, but not as described.

Maybe I have overlooked something and English is not my strongest language, so I ask in the forum and hope someone can help me.

Ich habe Goldwave lizensiert und Google translate hilft mir ;-)
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Re: Telefone system export

Postby DougDbug » Fri Jan 11, 2019 1:47 am

Save As -> WAV. Then click Attributes below to choose the format you want.
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Re: Telefone system export

Postby luckycoo » Fri Jan 11, 2019 2:45 am

yes I know, but what does exactly what I want or how can I adjust it. All A-Law do not deliver the desired result.

The specifications are:
64 kbits, 8 bits, 8 khz, mono, a-law

is it possible to set this on an input mask without any default?
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Re: Telefone system export

Postby DougDbug » Fri Jan 11, 2019 12:55 pm

All A-Law do not deliver the desired result.
Why do you think it's not working? Maybe there's something "funny" with your phone system?

I don't have a phone system to test it but it seems to work for me. I chose attributes of "A-Law, 8000Hz, 64kbps."

The file size is correct for 64kbps (8 kHz x 8 bits = 64kbps). And, since we know there are 8-bits in a byte, that's simply 8K bytes per second. My file was a little over 300 seconds and it's about 2400kB. If it was 16 bits (at the same 8kHz) it would be twice that size or if it was stereo it would be twice that size (and it would be 128k.bps)

And MediaInfo confirms:
"64.0kb/s, 8000HZ, 8 bits, 1 Channel, ADPCM (CCICT) (A-law)"
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