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| mithro | xfxf: non-urgent ping? I have some stuff I'd like you to look at on the weekend if possible... | 00:26 |
|---|---|---|
| mithro | CarlFK[m] / xfxf / anyone with audio experience - Does anyone have advice on highly directional microphones? | 00:46 |
| tumbleweed | we tried them (shotgun mics attached to cameras) for BoFs at DC15, and it didn't work out very well | 00:53 |
| tumbleweed | also, I'm sure paddatrapper has advice | 00:53 |
| mithro | tumbleweed: How were you using them? | 00:59 |
| tumbleweed | attached to the cameras, so they pointed where the camera did | 01:09 |
| xfxf | mithro: hi, available sun | 02:08 |
| xfxf | and my advice is don't use them | 02:08 |
| xfxf | assuming your problem set is user group recording | 02:08 |
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| xfxf | ozb | 03:50 |
| CarlFK[m] | mithro (IRC): I don't think I have ever used them - and if I did, it wasn't anything exciting | 03:51 |
| xfxf | ignore above, no idea wtf that is | 03:51 |
| xfxf | and i experimented for ages with different types, even multiple inverted mics using some sound theory | 03:51 |
| xfxf | it all sucked | 03:51 |
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| DeveloperWil | Looking to get some feedback on two very entry level radio lapel mics if anyone has used them before. Looking to hook up to a Galaxy S6 recording the video: https://www.digitalcamerawarehouse.com.au/azden-pro-xd-digital-wireless-microphone-system# and https://www.digitalcamerawarehouse.com.au/saramonic-wireless-4-channel-vhf-omnidirectional-lavalier-microphone-system-sr-wm4c# Thanks. | 05:09 |
| tpb | Title: Azden PRO-XD Digital Wireless Microphone System | Digital Camera Warehouse (at www.digitalcamerawarehouse.com.au) | 05:09 |
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| Ishan_Bansal | mithro : ping | 06:09 |
| xfxf | DeveloperWil: i am highly dubious how well that will work for a whole bunch of reasons. let us know how you go? | 06:20 |
| xfxf | for a user group? | 06:20 |
| xfxf | and a galaxy s6 has a mic in, or you're converting it to what a headset with a mic would use? | 06:21 |
| xfxf | i'd be going a USB DAC if going the mobile phone recording route but im dubious whether that will work well at all | 06:22 |
| xfxf | like, have you verified you can even record multiple hours of one video? i assume it'll be recording to a fat32 formatted sd card which limits you to 4 gb.. | 06:24 |
| DeveloperWil | Phone will be on a tripod recording. Looking to hook up a wireless mic to the speaker and receiver to the smartphone using a TRRS connector so we can capture the audio better. | 06:24 |
| xfxf | how will you adjust mic volumes? And monitor the audio for levels and clipping? | 06:24 |
| DeveloperWil | talks never really go over 30 mins - it's a local meetup group so we'll broadcast to youtube likely | 06:25 |
| DeveloperWil | Both receivers have a gain settings | 06:25 |
| xfxf | ah if its a user group, sweet, experiment | 06:27 |
| xfxf | gain settings dont mean much unless you can monitor the audio btw | 06:27 |
| xfxf | you're recording blind | 06:27 |
| paddatrapper | mithro: do you have any suggestions for using a logic analyzer with the data transfer when the fastest clock speed of the analyzer's sampling is half the clock speed of the firmware? I'm finding I can't trust the output I see | 06:41 |
| mithro | paddatrapper: Slow down your data transfer? | 06:43 |
| paddatrapper | mithro: as far as I understand, I can't slow the slave side. Though now thinking about it, if I'm monitoring the data output it's not connected to the slave anyway | 06:45 |
| mithro | paddatrapper: It uses a clock right? Slow the clock down? | 06:45 |
| paddatrapper | mithro: I seem to remember there was something in the TRM about it, but that was 3am, so I could well be wrong | 06:46 |
| paddatrapper | I.e. The slave FIFO may not work at a clock speed slower than 38MHz, but I shall try and see what happens | 06:48 |
| Ishan_Bansal | mithro : If you are still there, have a look at the final report : https://docs.google.com/document/d/1hXhApH3lDt4gT7ULloFavc0kUgBTPp0yphXEUjW9RKo/edit?usp=sharing | 06:51 |
| tpb | Title: GSOC Final Project Report - Google Docs (at docs.google.com) | 06:52 |
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| John_K | Mithro: issued PR https://github.com/timvideos/HDMI2USB-mode-switch/pull/67 | 08:26 |
| tpb | Title: Replace shelling out to fxload with CypressFX.FX2 calls by John-K · Pull Request #67 · timvideos/HDMI2USB-mode-switch · GitHub (at github.com) | 08:26 |
| John_K | Haven't been able to test it as I don't have a setup but CI passes - may need minor editing | 08:27 |
| paddatrapper | mithro: ah, the issue I was somewhat remembering is that the internal clock is 30Mhz or 45Mhz, so can't get slow enough | 09:50 |
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| paddatrapper | mithro: so I found this example of using two FX2's back to back: http://www.cypress.com/file/44781/download | 11:46 |
| paddatrapper | problem is I can't follow how they generated the GPIF waveform | 11:47 |
| mithro | paddatrapper: see the GPIF designer tool | 11:48 |
| paddatrapper | mithro: that is a Windows only GUI for configuring the GPIF. Ok guess I have to just manually do the config then | 11:50 |
| mithro | paddatrapper: and gpif2dat | 11:50 |
| mithro | paddatrapper: probably works under wine | 11:52 |
| mithro | http://allmybrain.com/2009/03/12/cypress-gpif-waveform-behavioral-model/ | 11:52 |
| tpb | Title: Cypress GPIF waveform behavioral model | All My Brain (at allmybrain.com) | 11:52 |
| paddatrapper | mithro: it also seems to require more ports than are available on the 48 pin package - Port C | 11:53 |
| mithro | https://sigrok.org/gitweb/?p=sigrok-firmware-fx2lafw.git;a=blob;f=gpif-acquisition.c;h=7d3dcb6d59d8c1c69048ce7b3efbca98d80e5d21;hb=HEAD | 11:56 |
| tpb | Title: sigrok.org Git - sigrok-firmware-fx2lafw.git/blob - gpif-acquisition.c (at sigrok.org) | 11:56 |
| mithro | That might help to... | 11:56 |
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| mithro | paddatrapper: try working everything under CPU control first | 11:59 |
| paddatrapper | mithro: I've been trying that for about the last almost 12 hours straight with no success | 12:00 |
| mithro | paddatrapper: ignore the receiving side and concentrate on the sending side | 12:02 |
| paddatrapper | mithro: I can't get the EP8FIFOBUF register to empty, so the master is stuck in an infinite loop writing the same 512 bytes | 12:02 |
| paddatrapper | mithro: that's the side I'm having issue with. Haven't been able to look at the slave side (except to see that it isn't working) because I can't get the master working | 12:03 |
| mithro | Are you using the sync delay when writing the values? | 12:05 |
| mithro | https://github.com/timvideos/fx2lib/blob/master/include/eputils.h | 12:07 |
| tpb | Title: fx2lib/eputils.h at master · timvideos/fx2lib · GitHub (at github.com) | 12:07 |
| mithro | Where is your code? | 12:08 |
| mithro | I need to head to bed, got an early start tomorrow | 12:14 |
| paddatrapper | mithro: sorry got dragged into a phone call | 12:30 |
| paddatrapper | code is here: https://github.com/paddatrapper/HDMI2USB-fx2-firmware/tree/audio-out/audio/out | 12:31 |
| tpb | Title: HDMI2USB-fx2-firmware/audio/out at audio-out · paddatrapper/HDMI2USB-fx2-firmware · GitHub (at github.com) | 12:31 |
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| paddatrapper | mithro: Final report is complete except for audiovisual components and loopback | 19:12 |
| * CarlFK[m] uploaded an image: file1503690150818.jpg (484KB) <https://matrix.org/_matrix/media/v1/download/matrix.org/LKUWIrZdKNXzeoCPLtdyKGHX> | 19:43 | |
| CarlFK[m] | Another voctocat | 19:43 |
| CarlFK[m] | This one doesn't move as fast | 19:43 |
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| nueces | Hi all! | 20:39 |
| nueces | after a year I'm back to play with the numato | 20:39 |
| nueces | I did and update in the firmware repository and now there is no more "make connect-lm32" | 20:41 |
| nueces | could somebody remember how to change the video matrix connection ? | 20:41 |
| nueces | or where is the documentation? | 20:42 |
| mithro | nueces: hi! | 21:15 |
| mithro | nueces: good to have you back! | 21:15 |
| nueces | Hi mithro, i get a new cam to play with | 21:15 |
| mithro | nueces: cool | 21:16 |
| mithro | nueces: so, the firmware has had major updates in the last year | 21:16 |
| nueces | the litex-firmware replace the misoc-firmware? | 21:17 |
| mithro | nueces: do these instructions help? | 21:17 |
| mithro | https://github.com/timvideos/HDMI2USB-litex-firmware/blob/master/getting-started.md | 21:17 |
| tpb | Title: HDMI2USB-litex-firmware/getting-started.md at master · timvideos/HDMI2USB-litex-firmware · GitHub (at github.com) | 21:17 |
| mithro | nueces: yeah, LiteX is a "soft" fork of MiSoC | 21:18 |
| nueces | I'm following that doc | 21:18 |
| mithro | nueces: where did you get up to? | 21:19 |
| mithro | nueces: you probably want "make flash" | 21:19 |
| mithro | nueces: make help might also be useful | 21:20 |
| nueces | I jump directly to the step 5, but the connect-lm32 is not present any more, so I go to the step 1 and start from the beginning | 21:21 |
| mithro | nueces: we also have pre-built firmware so you don't need the Xilinx tools if you are not building the gateware | 21:21 |
| mithro | nueces: yeah, try starting and fresh | 21:21 |
| mithro | nueces: I do think that doc needs some updating... | 21:28 |
| nueces | mithro, how I could play with the video matrix? | 21:52 |
| CarlFK | nueces: do you mean what commands to enter at the hdmi2usb> prompt? | 22:04 |
| nueces | CarlFK, yeap | 22:05 |
| CarlFK | matrix connect 0 1 | 22:05 |
| CarlFK | connect input 0 to output 1 | 22:05 |
| CarlFK | "matrix connect" can be shortened to "x c" | 22:05 |
| CarlFK | so "x c p 0" is connect "pattern" to output 0 | 22:06 |
| CarlFK | x c p e = pattern to encoder (uvc video stream) | 22:06 |
| CarlFK | "s" for status. "s on" it will repeat every second | 22:08 |
| nueces | CarlFK, but how to get the prompt? I used to use the make connect-fx32 , but now after the run make gateware && make gateware-load && make firmware && make firmware-load && make firmware-connect i holy get a BIOS> prompt | 22:11 |
| CarlFK | BIOS> prompt means something went wrong | 22:12 |
| CarlFK | try "boot" or "help" ... i forget mithro? ^^ | 22:13 |
| CarlFK | maybe hdmi2usb | 22:13 |
| nueces | ok | 22:13 |
| CarlFK | btw - I am not an expert at this bit - I just use it | 22:14 |
| nueces | CarlFK, thanks as always for the guidance and help | 22:14 |
| nueces | every time that I want to use the opsis I have to learn all again | 22:15 |
| mithro | nueces: at the bios prompt type "serialboot" | 22:20 |
| mithro | Sorry, got to run. | 22:20 |
| mithro | nueces: I've been working on making that bit more automated... | 22:21 |
| mithro | cr1901_modern: btw https://github.com/timvideos/flterm/issues | 22:22 |
| tpb | Title: Issues · timvideos/flterm · GitHub (at github.com) | 22:22 |
| nueces | I get this after "make gateware-load" targets/opsis/Makefile.mk:6: recipe for target 'gateware-load-opsis' failed | 23:15 |
| nueces | make: *** [gateware-load-opsis] Error 1 | 23:15 |
| nueces | http://dpaste.com/1J2Z9WC | 23:17 |
| tpb | Title: dpaste: 1J2Z9WC (at dpaste.com) | 23:17 |
| nueces | full log | 23:17 |
| nueces | there is a python traceback at the line 77 | 23:18 |
| cr1901_modern | mithro: Want me to just use my existing transmitter impl (at the cost of an external dep)? | 23:24 |
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