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

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Text to Speech Using Apache Web Server

I have Apache Web server installed on my Raspberry Pi. I was wondering If I could use javascript,html, and php to create a webpage where the user types some text into a text field and then that text ...
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2answers
45 views

Mobile to Raspberry PI audio streaming

I have trying to use the Raspberry PI + Wolfson to be an audio decoder and player. It would be the receiver for control/audio data for a specialized sound system. The PI would receive TCP packets from ...
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2answers
35 views

playing wav files with pygame bad quality with noise

I am trying to play a wav file in my raspberry-pi using pygame. I am able to play the music in the speaker.But the sound is very low and many noises are coming along with the sound. Is there some ...
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1answer
24 views

Soundboard switch mp3 list

I'm trying to setup a switch on a breakout board which will allow me to on switch play a short mp3, then loop a second mp3 until i switch it off, when i do so i want it to play a third mp3 (this is ...
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0answers
20 views

Say command using mplayer no longer working

I have the say command that does text to speech on my RaspberryPi: #!/bin/bash mplayer "http://translate.google.com/translate_tts?tl=en&q=$1" The script is taken from jacobsalmela.com This ...
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0answers
31 views

Airparrot audio to Raspberry pi

I have a model B Raspberry Pi running raspbian and a Windows 7 laptop. I am running Airparrot v1.1.7 on the laptop and rplay on the RPi. I can transmit video from the laptop to the RPi but when I ...
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37 views

Low latency audio streaming with Icecast2 and mpd with raspberian

So I have two pi's, one with icecast2 and both with mpd. I'm over a gigabit LAN connection, on the same switch, with the following settings in for icecast.xml (to do with latency): ...
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1answer
59 views

Raspberry Pi Speaker

I am thinking of doing a project with my Raspberry Pi. I am going to put the Raspberry Pi near my front door and attach a speaker to its audio output. Then I will go to my Mac and say something into ...
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1answer
97 views

USB card as my default Audio Device

I purchased a small USB sound card. My Pi recognizes the device: $ lsusb Bus 001 Device 004: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller If I run alsamixer and set the audio to ...
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0answers
41 views

usb soundcard losing power

I bought this USB soundcard. I have this powered USB hub and I plugged the soundcard to the hub(the 2 usb ports in the pi are used by wifi dongle and usb hub). I changed the configs , and rebooted and ...
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1answer
81 views

Raspberry PI Audio Input

I am looking to use the GPIO on a Raspberry Pi to get data from an ADC for audio signal processing. For the purposes of this forum, my project is to produce a spectrum analyzer which will display the ...
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4answers
94 views

Music, stored on the Pi, played over HDMI with visualisation, controlled from mobile phone

I have a television with HDMI input. I also have a bunch of mp3s. What I'd like to do is this: Put all the mp3s on the SD card in my Raspberry Pi. Plug the raspi into the television with HDMI. Have ...
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38 views

using php_exec command to play audio on the Pi - no audio group

I'm trying to have a php script play an audio file when run shell_exec('aplay /home/andrew/www/audio/meeting-bell/medium-bell.wav') It works when I run it from the command line, but not when running ...
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3answers
61 views

Powering an amp and a Pi from a single 12V lead?

I have a project in mind where I put a Pi into an old radio along a small amp (e.g.), or similar. The only problem is I'd like to only have one power lead to the whole thing. The amp takes a 12V ...
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2answers
96 views

Raspberry Pi's analog audio output in watts

Can some one tell me what is Raspberry Pis analog audio output capability? I would like to know how munch power 3.5 mm jack of raspberry pi can deliver in terms of watts. This will be helpful to ...
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1answer
174 views

Can I use Raspberry Pi with PiTFT and Wolfson Pi audio card at the same time?

I have been using my Raspberry Pi with PiTFT 2.8" display. I have recently purchased Wolfson Pi audio card, but I cannot imagine how to make both components (PiTFT and Wolfson Pi) work together. ...
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1answer
68 views

Access Volumio via No-IP [closed]

I just installed Volumio on my RPI and I was able to access it inside my network by using its IP address. Now I want to achieve something else. I want to access the musics on my external HD on ...
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0answers
28 views

Suggestions for recording audio from Mumble?

I would like to record an audio stream from Mumble, clip out the silent parts, and after a set amount of time, save the resulting file. I would like a push in the right direction. My biggest problem ...
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1answer
57 views

Need a beginner test program written in Python for audio (sound) output

I would like to find a beginner test program for audio in Python. A program that can play sounds (.wav files or whatever). From the code, I can then begin to learn how to work with audio output. ...
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0answers
64 views

Playing .wav and .mp3 files via python coding using mpg123

I am trying to make a simple python code, that will allow me to play both .wav, and .mp3 files. These are short 4 second files, and I would like for them to play when I press different buttons on the ...
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1answer
69 views

Simultaneously using GPIO 4 (Pin 7) while playing Audio

Whenever I play audio using the built-in analogue output jack, I lose control of GPIO 4 pin. Specifically, I am transmitting FM waves by Pin 7 using pifm ...
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0answers
37 views

MAX4466 recording sound

on my current project I'd like to record sound and store it as a .wav file. I already have a MAX4466 Microphone Amplifier bute when it comes to the hardware, I need some adivce. For recording audio, ...
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17 views

Least delay for audio processing

I am working on a project that involves real-time audio processing to do noise cancellation, so basically taking input from a microphone, doing processing, and sending out the output. It heavily ...
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1answer
57 views

Are there USB powered speakers with an Analog port?

I have built a raspberry Pi Jukebox, specially modified for a handicapped user (voice feedback on all songs, large buttons) but I have one.... last.... problem. The speakers I used ran off the analog ...
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0answers
37 views

Problems recording while playing audio

I am using a USB-soundcard to record on my raspberry pi and it records fine and the recorded sound is great, however if I am playing any other sound clip (through the audio output port on the ...
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1answer
80 views

Record audio output

Is there any way to record the audio output on the raspberry pi from the command line? I have tried using arecord, but it says the Pi doesn't have any audio capture cards. I also want to be able to ...
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3answers
83 views

Controlling a servo and playing sounds

I've got a serious problem about Pi. It is - I can play sound just fine with a python script either with: import pygame pygame.mixer.init() pygame.mixer.Sound("...").play() or: import os ...
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68 views

Real-time audio recording, looping, mixing

From what I've read, it is possible to record audio using an external USB soundcard or a USB webcam. But everything I've seen so far is just concerned with recording sound and saving it. What I'd ...
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1answer
73 views

Record audio in python when button pressed

I'm trying to set it up so that I can record some audio using RPi.GPIO and pyaudio using a button press to determine the record time (hold to record). However, whenever I press the button, the program ...
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0answers
201 views

Outputting audio to multiple sound devices simultaniously

I'd like my RasPi to send audio to my on board audio out port, and also to my Digital out card (an I2S Hifiberry Digi). This ought to be possible with ALSA. I have the drivers loaded and can send ...
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25 views

decoding DPL2 with an external audio card

Is it possible to use the Raspberry Pi to decode external Dolby Pro Logic II 5.1 audio streams (coming from a videogame console) using one of these external audio cards: ...
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0answers
144 views

How to record sound in buffer using ALSA

I'm begining to learn linux and ALSA and I was wondering if there is a way to store the sound I record from a microphone a directly to the buffer. I read here ...
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1answer
96 views

Wrong ALSA volume when starting playback

I run into the same problem than exposed in this post: ALSA volume ignored when beginning playback Here is the context: OS: raspbian Kernel 3.10.36+ #665 just updated the firmware with rpi-update ...
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1answer
66 views

Sound recording program using Nano

I want to make a sound recording program such as this on my RPI machine with several modifications. The problem is that I get the fatal error message "alsa/asoundlib.h : No such file or directory". I ...
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0answers
31 views

Sound not initializing at startup

I've got a RPi I am using for some retro-gaming with RetroPie and Dosbox installed. If I start X and attempt to run a game through Dosbox, I do not get sound. However, if I first start RetroPie and ...
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24 views

I have error whit all configurations hdmi

Hi I have Raspberry Pi an I installed OpenElec. My TV is Hisense and native configuration is HDMI:EDID best score mode is now CEA (17) 720x576p @ 50 Hz with pixel clock 27 MHz (score 4545736) or ...
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1answer
333 views

USB external sound card and Minimodem Software

I am trying to configure the Raspberry pi in order to work with the Minimodem software, which is software modem that uses FSK modulation and demodulation to transmit information over audio signals. I ...
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117 views

ffmpeg rtp port forward audio stream

I am working on a project that requires a live feed of the mic from the pi , so we started of with this aoss ffmpeg -f oss -i /dev/dsp -acodec mp2 -ab 32k -ar 10000 -r 800 -ac 1 -re -f rtp ...
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1answer
65 views

Connect a speaker directly

I want to turn an old plastic toy into a simple music box for my kids. The plastic case includes an 8 Ohm, 0.4W Speaker, is there a way to connect it directly to the Pi? My research so far seems to ...
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1answer
50 views

Rasperrian + MPD: Play/Resume fails

I'm running a RasperryPi with Rasperrian with an installed MPD. When i first use an MPD client to start the audio playback, it works fine. But then i press pause and resume and nothing happens. The ...
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99 views

pygame.mixer on thread fails with “(pygame parachute) Segmentation Fault”

On the Raspberry Pi, I'm trying to play some sounds using pygame.mixer and am having a problem when playing them on any thread other than the main thread. For example, I have a keypad hooked up and ...
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0answers
171 views

No audio on Xbian connected to an AV receiver via HDMI

I've got a Raspberry Pi with Xbian and XBMC installed that works perfect through HDMI when I connect it to the TV set. Video and audio are nice, but I've tried to set up it with my AV receiver without ...
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287 views

Raspberry Pi as Transmitter to bluetooth speakers

I am trying to do a project and I can't seem to find any information on how to set up the raspberry pi as the transmitter to bluetooth speakers. Is this possible? (Raspberry pi as the transmitter, NOT ...
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1answer
143 views

Something wrong with recording video and merging audio and video by using FFmpeg

At the beginning, I have to admit that I am a newbie in FFmpeg and also raspbian. Unfortunately, I need to solve this problem as soon as possible. I tried to record videos on my Raspberry PI by ...
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1answer
191 views

record audio from rtl_sdr using usb dongle

i'm trying to get rtl_sdr to record it's output to wav. i can in a round about way do this, because rtl_sdr allows saving the raw i/q stream to file, which i can then use sox to convert it to a wav ...
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2answers
124 views

Audio in Java application won't stop when told

Disclaimer: Not sure whether this is better posted here, or on StackOverflow; let me know if this is the wrong place. Background: I have a simple test application which plays a sound using Java's ...
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1answer
99 views

How to autoplay ogg stream at startup of device

I am programming a Rasberry to Pi to become a radio player. It is meant to be used to play the local college radio in the student union hangout. INPUT: Power is turn on. OUTPUT: Audio is played ...
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0answers
218 views

eSpeak over PHP on Raspberry PI

So I am trying to make a webserver on my Raspberry Pi which plays a voice using eSpeak whenever a page is loaded. I have installed apache2 and php5, and I also have a script to run eSpeak which I have ...
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0answers
61 views

Audio piping over network

Maybe I am over thinking this, but, I have one router (openwrt) with microphone attached and I am piping it to my raspberry pi audio card (built in) I am able to hear the audio when I plug in the ...
2
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1answer
126 views

start Zynaddsubfx with no GUI in the PI

I need to run jackd and zynaddsubfx in a headless PI. I have an external USB audio card that works (I can play stuff with aplay blablabla.wav) I can run jack1 with no GUI nicelly and connect stuff ...