On most recent firmware (archlinux-arm)
using audio_pwm_mode=2
makes MPD music sound slower, like some frequency rate error.
audio_pwm_mode=1, sound good.
Search found 58 matches
- Tue May 28, 2019 11:41 pm
- Forum: Advanced users
- Topic: Analogue audio redux
- Replies: 114
- Views: 41294
- Wed Mar 06, 2019 1:03 pm
- Forum: Graphics, sound and multimedia
- Topic: Project Idea - Is this Doable?
- Replies: 3
- Views: 926
Re: Project Idea - Is this Doable?
Is it ok to offer my services here?
I can code this for you, email me at fred1807@icloud.com
I can code this for you, email me at fred1807@icloud.com
- Mon Oct 30, 2017 1:15 pm
- Forum: General discussion
- Topic: OSD (on screen display) w/o X
- Replies: 44
- Views: 14763
Re: OSD (on screen display) w/o X
Sorry to revive this old thread.
Is it possible to update libvgfont to accept unicode characters?
Is it possible to update libvgfont to accept unicode characters?
- Sun Mar 05, 2017 6:49 pm
- Forum: Graphics programming
- Topic: Pi as public display screen
- Replies: 4
- Views: 5279
Re: Pi as public display screen
I am looking for something like this. Do you mind sharing the code? Hi folks, Thanks for the advice. In the end for various reasons I decided to write my own thing from scratch using libx11. Seems to be doing what I need which is basically checking for a message left in a file in /tmp every few seco...
- Wed Dec 21, 2016 11:21 pm
- Forum: General discussion
- Topic: no allow-hotplug eth0 on jessy /etc/network/interface ?
- Replies: 1
- Views: 2164
no allow-hotplug eth0 on jessy /etc/network/interface ?
I see that the stock /etc/network/interfaces has no entry like:
allow-hotplug eth0
ou
auto eth0
Why ?
What is the default behavior when no option like these is set?
Is there any problem adding allow-hotplug eth0? I still want dhcpcd to handle dynamic or static ip settings.
allow-hotplug eth0
ou
auto eth0
Why ?
What is the default behavior when no option like these is set?
Is there any problem adding allow-hotplug eth0? I still want dhcpcd to handle dynamic or static ip settings.
- Wed Dec 14, 2016 12:25 pm
- Forum: Graphics programming
- Topic: hello_video hack...
- Replies: 6
- Views: 3770
Re: hello_video hack...
Is it possible to tweak it a bit more to accept layer number as argument on the command line? 

- Mon Nov 28, 2016 3:06 am
- Forum: Graphics, sound and multimedia
- Topic: youtube-dl and omxplayer
- Replies: 5
- Views: 3773
youtube-dl and omxplayer
I have been testing youtube-dl inside the pi, most of the time it downloads and gerenates a playable movie but sometimes the file youtube-dl creates is not playable by omxplayer. " Vcodec id unknown: a8" I dont know what are the omxplayer limitations in terms of codecs. Any recipe to youtu...
- Mon Nov 28, 2016 3:05 am
- Forum: Graphics, sound and multimedia
- Topic: DAC vs usb soundcard
- Replies: 7
- Views: 7746
Re: DAC vs usb soundcard
Try yourself to open a music wav file, downsample it to 6 bits, and listen to the crap result. This is not what you hear in raspberry analog out. It is not audiophile 7th wonder, but you cannot say it is 6 bit, it IS 16 bit, with quality compared to most mobile phones audio output. The 'only' way to...
- Mon Jun 27, 2016 5:29 pm
- Forum: General discussion
- Topic: RPi3 jessie - NPTD does not work
- Replies: 35
- Views: 11074
Re: RPi3 jessie - NPTD does not work
Do I need to remove npt, ntpd and disable theier services from systemd? If you can't get ntpd to run take a look at htpdate. http://www.vervest.org/htp/ which doesn't use any special ports, it gets the time over regular http (port 80). That's available to install using sudo apt-get update; sudo apt-...
- Tue May 10, 2016 12:28 pm
- Forum: Advanced users
- Topic: Omxplayer Audio Shutters
- Replies: 0
- Views: 395
Omxplayer Audio Shutters
Using command line omxplayer with 720p-1080p/25fps (~4minutes) mp4 videos, I have been suffering with frequent audio grasps/shuttering every ~3minutes. Is there any omxplayer option flag , or /boot/config.txt line I could try fix it? As of now I am using stock foundation's raspbian lite (no desktop)...
- Thu May 05, 2016 2:16 pm
- Forum: Graphics programming
- Topic: Kill the CLI frambebuffer
- Replies: 5
- Views: 2424
Re: Kill the CLI frambebuffer
Omxplayer has a strage behavior when on negative layer (example -10), if there is a tranaprant png layer over it, you dont see omxplayer layer. If omxplayer is on layer zero or above, you can render transparent png over it without problems.
Why?
Why?
- Thu Apr 21, 2016 3:35 am
- Forum: Graphics programming
- Topic: Kill the CLI frambebuffer
- Replies: 5
- Views: 2424
Re: Kill the CLI frambebuffer
How can I kill the tty1 framebuffer or prevent it from starting at all?
- Wed Apr 20, 2016 4:40 pm
- Forum: Graphics programming
- Topic: Kill the CLI frambebuffer
- Replies: 5
- Views: 2424
Kill the CLI frambebuffer
Hello, I would like to play images and videos, and use negative frambeffer numbers (example, omxplayer --layer '-10')
But the command prompt at frambuffer 0 stays on top of negative buffer.
I dont use the command prompt, how can I kill it, or prevent it from starting at all?
But the command prompt at frambuffer 0 stays on top of negative buffer.
I dont use the command prompt, how can I kill it, or prevent it from starting at all?
- Wed Apr 13, 2016 3:45 pm
- Forum: HATs and other add-ons
- Topic: Power Solder
- Replies: 2
- Views: 795
Power Solder
I need to solder the power cable to the PI but still PASS trought the fuse.
Is it possible?
I dont want to bypass the fuse (like the GPIO instructions I have found).
Thank you!
Is it possible?
I dont want to bypass the fuse (like the GPIO instructions I have found).
Thank you!
- Fri Apr 08, 2016 8:44 pm
- Forum: Bare metal, Assembly language
- Topic: execute binary at boot
- Replies: 0
- Views: 595
execute binary at boot
I need to add a binary file (gpu related code) inside the /boot partition, and execute it at boot, when the GPU is avaliable.
How is this possible?
How is this possible?
- Tue Mar 15, 2016 2:12 am
- Forum: Graphics, sound and multimedia
- Topic: Pi Zero Unicorn Hat FFT audio visualizer
- Replies: 2
- Views: 3856
Re: Pi Zero Unicorn Hat FFT audio visualizer
can we make this ncurses?
- Mon Mar 14, 2016 6:23 pm
- Forum: Graphics, sound and multimedia
- Topic: Graphics demo: Farbwellenraum
- Replies: 2
- Views: 969
Re: Graphics demo: Farbwellenraum
Is there a source code on github?
- Mon Mar 14, 2016 6:19 pm
- Forum: Graphics, sound and multimedia
- Topic: Omxplayer Playlist Buffer
- Replies: 0
- Views: 1194
Omxplayer Playlist Buffer
Hello, I am using omxplayer on a command line only raspbian setup to play a folder of mp4 movies with sound. My bash script loads a playlist.txt file and start looping over the listed files. It works but there is a notorious gap between files. Is there any way to avoid this gap, or in some way pre-b...
- Wed Mar 09, 2016 7:24 pm
- Forum: Graphics, sound and multimedia
- Topic: hello_audio
- Replies: 1
- Views: 704
hello_audio
Are there more hello_audio examples? I want to use it to create some interface sounds, can anybody help me make it play a simple "click" sound instead of the looping siren?
- Mon Mar 07, 2016 2:50 pm
- Forum: Graphics, sound and multimedia
- Topic: Boot Sound
- Replies: 8
- Views: 2846
Re: Boot Sound
Thats is too late, I was looking for something as soon as the initial boot stage. Maybe using hello_audio code? When testing some setups, I use a similar idea, although often a video (no sound) but audio works fine too. Using omxplayer is a good idea, as it doesn't depend on the state of alsa. Alsa ...
- Fri Feb 26, 2016 12:15 pm
- Forum: Graphics, sound and multimedia
- Topic: Boot Sound
- Replies: 8
- Views: 2846
Re: Boot Sound
Desktop speakers...
Does it really matter?
Does it really matter?
- Tue Jan 26, 2016 2:53 pm
- Forum: Graphics, sound and multimedia
- Topic: Boot Sound
- Replies: 8
- Views: 2846
Re: Boot Sound
Maybe your only help would be using a DAC, like Hifyberry, that does not suffer electric interference?
- Fri Jan 22, 2016 12:01 pm
- Forum: Graphics, sound and multimedia
- Topic: Boot Sound
- Replies: 8
- Views: 2846
Boot Sound
I am trying to have a boot sound on my pi robot. So when the power in on, something comes out from speakers connected to the analog audio output. So far I have all these lines on the very first rc boot script (rcS) /usr/bin/omxplayer -o local /home/bootsound.wav and /usr/bin/aplay /home/bootsound.wa...
- Sat Dec 26, 2015 2:58 pm
- Forum: Graphics, sound and multimedia
- Topic: Raspberry Pi DAC (Hifiberry, PiFi Dac, and others).
- Replies: 5
- Views: 3872
Re: Raspberry Pi DAC (Hifiberry, PiFi Dac, and others).
Courious about what are the differences between HifiBerry, PIFI and IQaudIO dac, if any
- Sat Dec 26, 2015 4:58 am
- Forum: Graphics, sound and multimedia
- Topic: Raspberry Pi DAC (Hifiberry, PiFi Dac, and others).
- Replies: 5
- Views: 3872
Raspberry Pi DAC (Hifiberry, PiFi Dac, and others).
Hello. I am looking for some advice on what is a good DAC for the Raspberry Pi. The cheapest I can find, is the chinese " Pifi DAC" wich is supossed to work with the same drivers the Hifiberry works. Any one had the oportunity to test it? Are they worth? Second there are the Hifiberry, wic...