The Raspberry Pi has a stereo audio jack output, and audio can also be heard through the HDMI output.

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11 views

Static over composite audio

I'm getting static over the pi's composite audio (currently through an amp, but happens with other amps, a computer, and even headphones). I thought the 3.5mm jack cable was the issue (3 pole vs 4), ...
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0answers
12 views

Ghosts? Speakers playing sound from Raspberry Pi 2 without being connected [on hold]

Yesterday I discovered something really strange: my speakers were influenced by my Raspberry Pi without having the headphone jack plugged in. Well okay, that does not sound very special, since they're ...
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0answers
13 views

Frequency identifier [on hold]

How to use audio input through usb sound card to the filter and how to find the frequency of the input sound? I have tried the filter http://wiki.scipy.org/Cookbook/ButterworthBandpass using this ...
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1answer
33 views

Analog audio output produce noise around the sampling rate of the audio

I connected the analog audio output to a speaker and played an audio file with sampling rate of 15625. when I measure the sound coming out of the speaker I can see that the same sound is duplicated ...
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0answers
28 views

Raspbian Jessie - How do I properly setup A2DP with Bluez5 and PulseAudio

just purchased my first Raspi. I've installed Raspbian Jessie mainly for Bluez5, since I'm interested in the AVRCP features of Bluez5. I'm struggling with getting audio to pump out over bluetooth. I ...
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1answer
59 views

How to access SPI on Raspberry Pi B+

I tried searching here and other places. What is the best way to access the SPI and get the fastest speed out of it. My project involves interfacing the Pi with an ADC that is rated for 5Msps ...
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0answers
25 views

Audio cracking with VLC and Bluetooth, but works with aplay

I'm trying to set up my Pi (v2) as a WiFi Hotspot and a Bluetooth Audio Module for my car. The WiFi Hotspot works so far, but the sound over Bluetooth and VLC is only cracking. When i use "aplay ...
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0answers
46 views

Does this show PyAudio is unusable on RaspberryPi?

I want to use PyAudio to play audio on Raspberry Pi. This seems to be the easiest thing that should be possible to be done! If this is not possible, this would prove PyAudio is unusable on ...
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0answers
44 views

Using Android phone as microphone for R PI B+

I'm planning to use Jasper for voice control on my Raspberry Pi B+. However, there are no microphone sockets and I do not have a USB mic. I would like to know if there is any way I could use my ...
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0answers
65 views

Raspberry Pi USB Soundcard - Outputting from multiple programs

On the raspberry pi, using the internal sound card by default you can output audio from multiple programs simultaneously and it mixes them together. Since switching to a USB soundcard (merely by ...
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1answer
44 views

Raspberry Pi to sync lights to audio input from PC

So I'm wondering if it's possible to make the Raspberry Pi sync lights to sound coming from my PC. I would use an usb soundcard for a sound input and a usual audio cable. Right now I'm running ...
2
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0answers
32 views

Speech Synthesis issues ? Dalek / HAL

I have installed 'espeak' , 'Festival' and 'Flite' (the cut-down version of 'Festival' for ARM) ; and the former two seem to suffer from a very similar problem: they both start reading text files just ...
3
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1answer
140 views

Receive FM on Raspberry Pi

I want to feed the FM radio signals to raspberry pi. Having a basic understanding of electronics, I figured out that a FM receiver and an ADC is required. Now I need help on how to proceed with the ...
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0answers
65 views

Audio and microphone configuration of usb sound card on r-pi

To configure audio of soundcard I did the following settings: sudo nano /etc/modprobe.d/alsa-base.conf I commented options snd-usb-audio index=-2 and added options snd_bcm2835 index=1 so speaker ...
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0answers
11 views

How can I record audio from my RPI and save it to my PC (server)? [duplicate]

I would like to record audio from a usb device connected to my RPI and save it to a server (my pc on the same network). OS: RASPBIAN Debian Wheezy Model: B USB Mic: Sound-Tech 1000 Once the USB ...
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0answers
25 views

audio on videostream is stucking

I'm using the RPI2 with latest Raspbian to watch a tvstream and the audio stucks about every 30 Seconds for a small moment. The URL of this wmv Stream is mmsh://rts.videostreaming.rs/rts That's an ...
2
votes
1answer
76 views

Delay Problem in Audio/Video when Multiplex in One through Python

I am writing a program in python on RaspberryPi, to record video on a Picam and capture audio through a Microphone attached with USB AUDIO DEVICE. On combining both files through ffmpeg, till 30sec ...
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0answers
26 views

Route audio FROM pi TO windows

I have seen how to send my window audio over to a pi. That as well as linux to linux audio is a cakewalk. However. I have not found how to send any audio FROM my pi TO my windows machine. They are ...
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0answers
84 views

Bluetooth Input Not Outputting High Quality Audio to FM

I have Raspian Wheezy running on my Raspberry Pi. I have set it up to run pifmplay and output the sound to HDMI - (Pin 4 on GPIO) so that the Pi is now working as an FM Transmitter. This part works ...
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1answer
208 views

ImportError No module named utils

I am trying to run a program in python on RaspberryPi from stackexchange but getting an error ImportError: No module named utils Can you please help me resolve this issue? import pyaudio, wave, ...
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2answers
82 views

My speakers don't work on my raspberry pi but my headphones do. Why is this?

I am using a raspberry pi model B and I am trying to output sound using my new Logitech Stereo Speakers. I can't hear anything but my headphones do work. Please tell me why this happens and how I can ...
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0answers
88 views

Raspberry pi sound level

I had this project of smoke detection.. so the smoke detector when it detects smoke will output a sound with a volume of 80dB, How can I measure dB using the raspberry pi and a USB microphone?
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2answers
143 views

Programming a non-audio headphone jack peripheral [closed]

I have been given a scentee which I would like to program to be usable with my Raspberry Pi. This device connects to smartphones via the headphone jack, and needs to be charged seperately, so I don't ...
0
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1answer
95 views

How to use Jack (or similar software) to route music played in the Pi as audio input (like a microphone)?

I'm trying to make a small music reactive light project with the RPi. I'd like to play music (using whichever software in Raspbian), and to interpret that music as audio input to process while still ...
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1answer
123 views

noise on the analog jack shadowing the RPi activity

I plugged in my RPi B+ (with latest Raspbian) to a speaker (August SE30, using the analog jack). I get the expected sound when using mpg123 but I also get, when not playing, a continous stream of ...
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0answers
26 views

Help with connecting 2 RPi for sending mono jack info wirelessly

I am new to Raspberry Pi, but willing to learn if what i want to do is possible. I'm even willing to pay if someone has a solution or someone would like to get involved in this project. I have a ...
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1answer
94 views

How to make PocketSphinx use ALSA? (instead of pulseaudio or jack)

I've been struggling to make pocketsphinx work with the audio system of my raspberry pi. As stated in pocketsphinx's website, one of the steps to build it for a raspberry pi is to execute this: ...
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1answer
100 views

Raspberry Pi High-Quality Sound Recording

For a project, I need to be able to record at a sample-rate of at least 500 kHz. I want to use a Raspberry Pi, but I know that it has no interface with sound. I found the Wolfson Audio Card for the ...
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0answers
16 views

Sound is being cut off

On the raspberry pi connected to an hdmi TV, any command that emits sound has the first two seconds of audio cut off. Numerous options have been enabled in config.txt. How do you make it play audio ...
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1answer
104 views

Constant Stream of Distortion/Noise from 3.5mm Jack

I've been trying to set up audio playback on my Pi model B (running Raspbian, fully updated at the time of this posting), but I'm having issues with overpowering distortion. In the broader scheme I'm ...
2
votes
1answer
137 views

Raspberry Pi as near real time digital signal processor

I have a Pi with Wolfson Audio Card, running Raspbian with low latency kernel. Is it possible and feasible to use such a setup as a near real time digital audio processor, like a reconfigurable ...
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0answers
52 views

How can I send audio to BOTH headphone jack and HDMI?

I know how to use amixer to send output to either the headphone jack or the HDMI port, but I want to send output to BOTH devices. How can I accomplish this? I'm using official Wheezy Raspbian on a ...
2
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1answer
159 views

HDMI sound: omxplayer works but not aplay

I want to use text-to-speech programs like festival and espeak, but they don't produce any sound. I'm able to play sounds with omxplayer, but aplay, festival, and espeak are all muted. I've tried ...
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0answers
34 views

How would I monitor audio activity on the Pi?

For a project I want to have the Pi monitor audio activity using a microphone connected via a USB audio device. I want to be able to plot this activity on a web page as well, so I'll need to save it ...
0
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1answer
121 views

Executing a command via PHP

I currently have an Apache web server running on my Pi that has this as the index.php file: <?php if (isset($_GET['play'])) { exec('sudo omxplayer yes.m4a'); } ?> However, my ...
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0answers
89 views

Is there any way to record audio output by using command line?

I'm trying to record the audio output of my pi but i can't find any good solution. I tried to use arecord but it fails because I don't have any input devices. Because of this my idea was to redirect ...
2
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0answers
295 views

Raspberry Pi Drum Module

I have an old electric drum set with a broken sound module (the brain that you plug each jack into). As a fun DIY project I'd like to resurrect this drum kit by replacing the sound module with the ...
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0answers
96 views

Full duplex Audio With USB Sound Card

I setup Raspberry pi with external usb sound blaster sound card.My Goal is to be able to recored and play audio simultaneously. I setup and configured it to be the default sound card as follow : ...
3
votes
1answer
374 views

Sync Audio & Video From Pi Camera & USB Microphone

I am trying to stream low-quality audio & video from my Raspberry Pi to another device. I have a Raspberry Pi camera & a USB microphone. Both devices work separately but i cannot seem to get ...
2
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2answers
102 views

Create Startup Sound

I know that this question has already been answered, but the method described here is actually not working for me... o.O I read in some other forums that a different formatting is required, but I ...
0
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1answer
162 views

Play MIDI from Raspi using external controller

I want to output MIDI fonts from the Raspberry Pi, hopefully able to control it with external sensors. I have timidity installed but get no sound playing the file python_games/tetrisc.mid . Is there ...
0
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0answers
64 views

24 bit recording in raspberry pi

I'm trying to record audio with 24 bit with 32k sample rate in raspberry pi. When I play the recorded file I'm getting glitches. I changed bit clock ratio to 48 (i.e., number of bits* number of ...
1
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1answer
159 views

ADC to capture speech (8khz, 16bit)

I am looking to capture speech and save it as a wav (Wave PCM) in RPi. Ideally the speech should be captured in 8khz with 16bit resolution and saved as a raw file or wav file. I also have a need to ...
0
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2answers
182 views

Play music stream via node

Is there anyway for me to play a music stream (google play music, I already got the streamURL) in the raspberry pi via node? (and also, output it to audio port). thanks
2
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0answers
112 views

Dynamic compression / limiter of MP3 audio playback? [closed]

I often listen to audio plays (single or multiple MP3 files) before going to sleep but then wake up again when there is a much louder scene or the end theme. I can't just turn the volume down in ...
1
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1answer
522 views

Raspberry Pi with USB DAC and ALSA audio not working

I finally got a USB DAC (HiFimeDIY Sabre DAC) for my Raspberry Pi (running on Raspbian Wheezy) today, but of course, just plugging it in doesn't do the trick. I've been messing around for quite some ...
0
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1answer
93 views

motor and audio

I'm using a raspberry pi, wheezy, raspbian, revision B. I'm I'm connecting a servo motor with these specs: Required Pulse: 3-5 Volt Peak to Peak Square Wave Operating Voltage: 4.8-6.0 Volts ...
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0answers
266 views

Can't get PyAudio working with Raspbian

I've been planning an audio project with my raspberry pi and have played with some ideas using PyAudio on my mac with no trouble. I just recently set up my RPi and am having some trouble running ...
5
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1answer
295 views

Streaming Audio and Video from a remote Raspberry Pi to my computer

I've been working a couple of days on this issue. I need to set a stream up that streams audio and video (doesn't matter if I need to open separate connections for it, as long as it works) from the ...
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0answers
68 views

Use Raspberry PI to pass audio both ways

Thanks for the edit button. I haven't purchased anything yet, have been reading, saving links and so on. I'm a electronic tech by trade but new to the raspberry pi. Its a neat little board, can do a ...