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Contributor
Posts: 15
Registered: ‎11-13-2011
My Device: Blackberry Curve 9300
My Carrier: Airtel - India

Recording at a Sampling frequency of 44.1 kHz

Hi,

 

In my blackberry app, I need to record audio at a sampling frequency of 44.1 kHz. Is this possible for blackberry OS/devices?

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Posts: 150
Registered: ‎10-19-2010
My Device: Not Specified
My Carrier: Rogers

Re: Recording at a Sampling frequency of 44.1 kHz

Hi raviteja2007!

 

It is not possible, the best you can do is 8 kHz.

New Contributor
Posts: 4
Registered: ‎03-15-2012
My Device: Bold 9900
My Carrier: 27722602294

Re: Recording at a Sampling frequency of 44.1 kHz

Dear @BVP

 

Why is this not possible?  I need to use the microphone input to record high frequency (approx 18 - 22kHz) sound with the built-in microphone of blackberry devices, and need to sample at 44.1kHz.

 

http://supportforums.blackberry.com/t5/tkb/articleprintpage/tkb-id/java_dev@tkb/article-id/208

 

i see that up to 48kHz audio is supported.

 

Looking forward to your feedback.

Thank you very much

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Posts: 150
Registered: ‎10-19-2010
My Device: Not Specified
My Carrier: Rogers

Re: Recording at a Sampling frequency of 44.1 kHz

Hi martinlompa!

 

The microphone hardware can at best record at 8 kHz, although it can be as much as 12 kHz on some devices.  This is a hardware limitation.  It's also why when you record audio (in any format) it sounds in the best case like phone-call quality, because it essentially is.

 

The page you referenced indicates the sample rates that can be played back, but it does not mention what can be recorded, which I mentioned above.  Just FYI, it is also out of date since the latest device it mentions is the 8830 - the sample rates for playback are much higher on newer devices.  Unfortunately the recording capability has not kept up the same pace.

New Contributor
Posts: 4
Registered: ‎03-15-2012
My Device: Bold 9900
My Carrier: 27722602294

Re: Recording at a Sampling frequency of 44.1 kHz

Thank You so much for the valuable feedback.