From mboxrd@z Thu Jan 1 00:00:00 1970 From: Apostolos Kefalas Subject: Re: fldigi setup question Date: Thu, 23 Jun 2016 12:28:24 +0300 Message-ID: <1466674104.1592.6.camel@raag.org> References: <20160619135457.GN4605@engels.historicalmaterialism.info> <20160623011533.GB12415@engels.historicalmaterialism.info> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-njpfEdpbxLMavffNfhgM" Return-path: In-Reply-To: <20160623011533.GB12415@engels.historicalmaterialism.info> Sender: linux-hams-owner@vger.kernel.org List-ID: To: Haines Brown Cc: linux-hams@vger.kernel.org --=-njpfEdpbxLMavffNfhgM Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On =CE=A4=CE=B5=CF=84, 2016-06-22 at 21:15 -0400, Haines Brown wrote:=20 > There was no response to the question of my original post. I assume that > this was because it was too open ended. So I'll be more specific. >=20 > I'm running debian Wheezy with a SignaLink USB sound card and fldigi > software. The transmitter is a K3 tuned to 14.070, TX DATA mode USB. My > computer uses PulseAudio as default. Alsamixer also sees the presence of > SignaLink's USB Audio CODEC, which is un-muted and at 84%. >=20 > The SignaLink USB instructions tell me to make sure the software's > transmit and receive audio card is set to USB Audio CODEC. I go to > fldigi, Configure, Soundcard. Although PulseAudio is present on the > computer, not wishing to use PulseAudio for fldigi, I have selected > PortAudio. I assume I can do this. Am I wrong? No you are not wrong... though I can not understand why you want to do that. Portaudio will use ALSA which will redirect you through Pulseaudio!!! >=20 > PortAudio does not offer an option to choose the Transmit and Receive > audio card, but instead the Capture and Playback card. I set PortAudio > Capture to the SignaLink's USB Audio CODEC card. But the fldigi > PortAudio Playback does have that option. Its options are Xonar DX (my > computer's sound card) HDA NNvidia (motherboard audio chip), iec958, > spdif (a cable?), pulse (PulseAudio?) and default (my computer's Xonar > sound card?). USB Audio CODEC is not a choice. Should it be? Should I > instead use iec958? Make sure you have installed libportaudio packages. >=20 > Pavucontrol sees "ALSA Plugin [fldigi]" for ALSA Capture under Recording > and sees PCM2904 Audio Codec Analog Stereo among Output > Devices. Question: shouldn't what pavucontol sees and the values it sets > be irrelevant? See above!!! >=20 > And the fldigi waterfall is strange. Fldigi is set to PSK31 at > 14070.000. The waterfall sees noise only in a band at its center > (14071.240 to 14071.716) and at its extreme left edge (14070.041). While > the middle region has nothing that looks like signals (unless it itself > is a broadband signal), the left edge looks as though it is close to the > IM distortion of a signal just out of range. Although the central region > has no visible PSK31 signals and I hear no PSK31 warble, it and the > extreme left produce garbage text ("e S tite ate oee o e too=3D"), whethe= r > I set the demodulation for frequency or phase shift. The only effect > changing the demodulation is that with RTTY, the garbage is upper case. >=20 > Please help. >=20 > Haines Brown KB1GRM >=20 > -- > To unsubscribe from this list: send the line "unsubscribe linux-hams" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --=-njpfEdpbxLMavffNfhgM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCgAGBQJXa6u4AAoJEC8RbMGjwZ2g2CEQALpRyJ8YiuTQp/JjoAHmcuBy DYxy+jLqVDghTCpF8giogp0XnvNM5ibgXxvbP8Ga0wVOR2ZX8cc+yyj6IsdfsYsH wXpbuDqZ2FW6ES4zM8HkaBjoHgsfHx1wHKzAsqcwwUvVBUYs/KlmBVYv4txvx+pr 7kxVw7ssbK7gH/9TG9E/rW5oAlr18TEUMNVQpcKzmOv9S6cXxVBaqRy9GFhP4/ff UXLQGMY3aiM4AZANSh5ApKjzrqGJDueb2nLoUS14L/j6IgftcQaX0iqdiGw4U5dR XBi3HrYWvIWdwAkQ37DSNMVGJuarnq5zycNbs+tXMX7KWBgWDYgdpqqjmq/3rfj2 tBdzETCZUzxIM/ztna6GxrAC82s+HoqnN85VGcRcdmSra/B5pHN2b/YGh3XrWR8J Njg2abYp/aspJp+XCG16zvW+ZTL/gAnvPh/7INycdZQBOFN/QPvEufKsaeAgMO7a JueDkLZ6yWmdWWCjT43UJA5B6XMvax7PKWol62KQv6l/wT2qGEEJBuLkNm+lIY3e d4opQaq4JjeX4uG1QdPgQz2GbStY0vW+WTbonJagraNuQG4VJJGlMlJt9jFv1if4 gx8CFiv/d4By4VuJXSrIruwdeJStSvkFRr+mQ8sAq0eLHu3qV8ce8rYcfbcI06mP XIh+ADdNFjoiU9fpUs7L =b+tT -----END PGP SIGNATURE----- --=-njpfEdpbxLMavffNfhgM--