From: Arnaud Mouiche <arnaud.mouiche@thomson.net>
To: bluez-devel@lists.sourceforge.net
Subject: Re: [Bluez-devel] Modify scotest?
Date: Fri, 16 Dec 2005 09:42:37 +0100 [thread overview]
Message-ID: <43A27DFD.9070007@thomson.net> (raw)
In-Reply-To: <1134675751.12505.21.camel@localhost>
Using SCO for quality measurement is a good idea if your bluetouth
device supports trasnparent audio, and if you configure them to use this
mode. If not, you can still try a configuration like ulaw on air, ulaw
on HCI (no conversion in theory)
In this case, write a tool like scotest that always send FF.FF.FF...FF
frames (or anything you want) (write the same amount of data that you
receive). Then juste count zeros bits to detect BER, and 00.00.00...00
frames for PER.
Enjoy !
Arnaud
Marcel Holtmann wrote:
>Hi Wolfgang,
>
>
>
>>I need to meassure the quality of a bluetooth SCO link, therefore I want to send a data file over a SCO Link like OBEX.
>>So I want to see whats transmitted on client side, comparing with the original file, for the purpose to detect bit errors a.s.o.
>>Is this possible with the scotest tool - actually it seems to me that I can only send a predetermined number of bytes through the SCO connection and receive them on the client side.
>>Or am I wrong and there is another solution for my project ?
>>
>>
>
>don't use SCO channel for data transmission, period.
>
>Regards
>
>Marcel
>
>
>
>
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next prev parent reply other threads:[~2005-12-16 8:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-15 17:10 [Bluez-devel] Modify scotest? Wolfgang Krug
2005-12-15 19:42 ` Marcel Holtmann
2005-12-16 8:42 ` Arnaud Mouiche [this message]
2005-12-16 8:50 ` Marcel Holtmann
-- strict thread matches above, loose matches on Subject: below --
2005-12-17 7:47 Wolfgang Krug
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