From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by befuddled.reisers.ca (Postfix, from userid 65534) id AE8C41EF702; Sun, 19 Apr 2015 13:05:26 -0400 (EDT) Received: from rgout03.bt.lon5.cpcloud.co.uk (rgout03.bt.lon5.cpcloud.co.uk [65.20.0.180]) by befuddled.reisers.ca (Postfix) with ESMTP id 7BFC11EF6F2 for ; Sun, 19 Apr 2015 13:05:24 -0400 (EDT) X-OWM-Source-IP: 86.167.127.52(GB) X-OWM-Env-Sender: mike.ray@btinternet.com X-CTCH-RefID: str=0001.0A090205.5533E051.0007, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-Junkmail-Premium-Raw: score=27/50, refid=2.7.2:2015.4.6.93621:17:27.888, ip=86.167.127.52, rules=__MOZILLA_MSGID, __HAS_MSGID, __SANE_MSGID, __HAS_FROM, __HAS_REPLYTO, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __TO_MALFORMED_2, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __REFERENCES, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __REPLYTO_SAMEAS_FROM_DOMAIN, __ANY_URI, __FRAUD_BODY_WEBMAIL, __CP_URI_IN_BODY, ECARD_WORD, __SUBJ_ALPHA_NEGATE, __FORWARDED_MSG, BODY_SIZE_3000_3999, __MIME_TEXT_ONLY, RDNS_GENERIC_POOLED, __URI_NS, SXL_IP_DYNAMIC[52.127.167.86.fur], HTML_00_01, HTML_00_10, BODY_SIZE_5000_LESS, RDNS_SUSP_GENERIC, RDNS_SUSP, __FRAUD_WEBMAIL, BODY_SIZE_7000_LESS, REFERENCES X-CTCH-Spam: Unknown Received: from [192.168.0.125] (86.167.127.52) by rgout03.bt.lon5.cpcloud.co.uk (8.6.122.06) (authenticated as mike.ray@btinternet.com) id 551D2F0E01E641BE for speakup@linux-speakup.org; Sun, 19 Apr 2015 18:05:20 +0100 Message-ID: <5533E052.80400@raspberryvi.org> Date: Sun, 19 Apr 2015 18:05:22 +0100 From: Mike Ray Reply-To: mike@raspberryvi.org User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: speakup list Subject: Re: Connecting hardware synthesizer to speakup without serial port. References: <5533D265.8060409@raspberryvi.org> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 X-BeenThere: speakup@linux-speakup.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Apr 2015 17:05:26 -0000 It has nothing to do with when or whether the computer loads the driver for the USB to serial adaptor. It just doesn't support the hardware-handshaking that speakup and the hardware synth need. You might hear the effect that for the first few seconds it seems to work but then goes silent. I assume this is because speakup is waiting for the hand-shake from the synth that indicates it has finished the last chunk and is ready for more. I had email once before about this privately from someone trying to use a USB to serial adaptor and I recommended he install an RS232 serial port card and that fixed his issues. Mike On 19/04/2015 17:10, Glenn / Lenny wrote: > I have only used a USB to serial in Windows. > But I thought that others had done it after the computer had gone through > its initial screens. > Glenn > ----- Original Message ----- > From: "Mike Ray" > To: > Sent: Sunday, April 19, 2015 11:05 AM > Subject: Re: Connecting hardware synthesizer to speakup without serial port. > > > > No, speakup and the Apollo, or any other hardware speech-synthesiser > will not work with a USB to serial adaptor. > > I believe this to be because a genuine serial port (RS232) and speakup > use the hardware hand-shaking pins (RTS and CTS?), to communicate > readiness to send and recieve data. The USB to serial adaptors will > either not support this hardware hand-shaking or it takes a differently > written program to use it. > > Mike > > > On 19/04/2015 16:43, Glenn / Lenny wrote: >> Hi, >> I thought that it will work with a USB to serial adapter, but you may not >> get the initial computer boot-up messages because the USB to serial driver >> would not have been loaded yet. >> Glenn >> ----- Original Message ----- >> From: "łukasz golonka" >> To: >> Sent: Sunday, April 19, 2015 6:01 AM >> Subject: Connecting hardware synthesizer to speakup without serial port. >> >> >> Hi. I have apollo II synthetiser. I would like to connect it to >> speakup, but i have computers without physical serial port. Usb to >> serial interfaces don't work with speakup of course. Is it possible to >> connect speakup to apollo. I've heard about possibility to connect >> external synthetiser to speakup using express card to com adapter, but >> my computer doesn't have physical express card port, so i must again >> use express card to usb converter. >> Thank you for help. >> Lukasz. >> _______________________________________________ >> Speakup mailing list >> Speakup@linux-speakup.org >> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup >> >> _______________________________________________ >> Speakup mailing list >> Speakup@linux-speakup.org >> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup >> > > -- Michael A. Ray Analyst/Programmer Witley, Surrey, South-east UK Interested in accessibility on the Raspberry Pi? Visit: http://www.raspberryvi.org/ >>From where you can join our mailing list for visually-impaired Pi hackers