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

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16 views

Want to stream just captured audio using VLC as http or rtsp

When I try to use the VLC GUI to start the stream, all the modes seem to include video, like v4l2. How do I tell it to only stream the audio card input? The RPi next to my TV and want to be able to ...
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1answer
26 views

How can I turn my Raspberry Pi into a wireless receiver for a Microphone?

My Raspberry PI is connected to a pair of speakers. I can connect it to network without problems... I would like to allow a user to speak into a microphone (when he pushes a record button) and hear ...
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0answers
16 views

Use Raspberry as Wifi driven in ear system

I was thinking about if RPI would be useable as in ear transmitter for conference translations. Every Listener gets a Battery powerd RPI with Wifi Dongle and Headset. Audiocast will be transmitted as ...
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0answers
12 views

Espeak not working on raspbian

I'm trying to use espeak to say some text. So I do the command espeak "Hello I am a raspberry pi", the first time I have no sound, and if I do it again, the bash is blocked and all I have to do is to ...
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0answers
27 views

No audio DTS 5.1 on Raspbmc

I am having trouble with my Raspberry Pi, running XBMC 13.2-BETA1, outputting DTS 5.1 audio. All other types of audio appear to work without any problems, including DTS 2.0 but with 5.1 there is no ...
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1answer
28 views

Is there some trick to getting aplay audio output working?

I have recorded a .wav file using the command: arecord test.wav But when I try to play it, there is no sound output. It's like the raspberry pi is stuck on mute. I initially thought that my ...
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0answers
25 views

Audio Transmitter without Audio

I have make my Pi transmit the audio to my Bluetooth speaker using this link here but for some reason I get no play back out of my speaker. I have unplugged my HDMI and headphones that were in and ...
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4answers
77 views

Sound card for raspberry pi?

Can anyone recommend the best way of recording audio input? Are there any "sound cards" for raspberry pi's? Edit: I've seen Linux software for ham radio. And see that debian wheezy has a whole lot of ...
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1answer
134 views

Raspberry Pi as a internet radio server?

I'm looking for a way to stream audio mp3's and spotify to my internet radio from my Pi. I've have looked and can only find things that play it on the Pi. I also need a way of controlling what's being ...
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0answers
16 views

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
100 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
64 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
38 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
64 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
53 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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0answers
76 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
101 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 ...
4
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1answer
183 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
49 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
131 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
112 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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0answers
58 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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4answers
81 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
129 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
287 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
101 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
34 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 ...
0
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1answer
61 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
111 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
97 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
47 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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21 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
78 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 ...
2
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0answers
43 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
90 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
120 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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1answer
126 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
95 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 ...
2
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0answers
287 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 ...
2
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0answers
201 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
123 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
79 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
36 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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0answers
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 ...
2
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2answers
395 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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0answers
139 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
69 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
69 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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0answers
119 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
207 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 ...