{"id":1689,"date":"2017-05-18T16:30:55","date_gmt":"2017-05-18T13:30:55","guid":{"rendered":"http:\/\/eero.storijapan.net\/log\/?p=1689"},"modified":"2019-08-14T13:11:01","modified_gmt":"2019-08-14T10:11:01","slug":"20170518-2","status":"publish","type":"post","link":"https:\/\/eero.storijapan.net\/docfolio\/20170518-2\/","title":{"rendered":"20170518"},"content":{"rendered":"

Apparently pifm<\/a> which I tested last year only works in RasPi2<\/a> and I’m now trying to get RpiTx<\/a> to stream FM trough USB audio in (I bet that for what I need it would be easier to buy a RasPi2). RpiTx is very advanced but I can only get it to broadcast audio files over fm (here is a simple tutorial<\/a>). Unfortunately I can’t get it to stream live audio trough my USB audio interface. Following rpitx-app-note<\/a>‘s I learned about:<\/p>\n

arecord -c1 -r48000 -D plughw:CARD=Device,DEV=0 -fS16_LE - | csdr convert_i16_f | csdr dsb_fc | csdr bandpass_fir_fft_cc 0 0.1 0.01 | csdr gain_ff 2.0 | csdr shift_addition_cc 0.2 | sudo rpitx -i- -m IQFLOAT -f 100000<\/code><\/p>\n

But it is dependent on libcsdr<\/a>, which I can’t get to compile on RasPi3 because “If you compile on ARM, please edit the Makefile and tailor PARAMS_NEON for your CPU.” and I have no idea on the RasPi3 PARAMS. I found some hints on what to do<\/a> (but it seems that those are set for RasPi2). Trying to sort the things out by installing gnuradio and other tools as recommended in a different tutorial.<\/p>\n

I’ll make yet another clean install of Raspbian<\/a> and continue in the evening with PiFmRds<\/a>. I’m using Etcher<\/a> to write the os on the sd card, which seems to work well. I should learn how to clone the sd card.<\/p>\n

Visited Lovi ambient event at Lava klubi<\/a> and saw a good gig by Rasmus Hedlund and Paula Lehtonen. Their collaboration yelds great results. Paula designed video using material from their trip to Tasmania and Rasmus crafted a field of sounds consisting of oceanic & low jungle rumble tones. Spotted a Make Noise Photogene in use. The gig was constructed out of some 8-10 distinct soundscapes, which were supported by videos from different locations.<\/p>\n","protected":false},"excerpt":{"rendered":"

Apparently pifm which I tested last year only works in RasPi2 and I’m now trying to get RpiTx to stream FM trough USB audio in (I bet that for what I need it would be easier to buy a RasPi2). RpiTx is very advanced but I can only get it to broadcast audio files over fm (here is a simple tutorial). … <\/p>\n

Continue reading “20170518”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[86,119,44],"class_list":["post-1689","post","type-post","status-publish","format-standard","hentry","category-log","tag-paula-lehtonen","tag-rasmus-hedlund","tag-raspberry-pi"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts\/1689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/comments?post=1689"}],"version-history":[{"count":0,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/posts\/1689\/revisions"}],"wp:attachment":[{"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/media?parent=1689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/categories?post=1689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eero.storijapan.net\/docfolio\/wp-json\/wp\/v2\/tags?post=1689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}