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Search found 167 results on 7 pages for 'pcm'.

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• How to get espeak working?

  - by wisemonkey

  I'm trying read it loud feature of acrobat, so need a text synthesizer, I've installed espeak and libgnome-speech libraries (it didn't work for acrobat right out of the box) so when I started espeak-gui through command line it gave me segmentation fault next I tried only espeak and here is output: ALSA lib pcm.c:2212:(snd_pcm_open_noupdate)…

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• Flash swf to play PCM WAV files?

  - by Geuis

  I am in need of a Flash swf that is capable of loading PCM WAV files via a url passed to it. An example of the file can be found here: http://msdn.microsoft.com/en-us/library/ff512405.aspx The swf does not need a visible interface, as it is meant for audio playing only and not user interaction. The swf should have a simple javascript…

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• Android PCM Bytes

  - by Pintac

  Hi I am using the AudioRecord class to analize raw pcm bytes as it comes in the mic. So thats working nicely. Now i need convert the pcm bytes into decibel. I have a formula that takes sound presure in Pa into db. db = 20 * log10(Pa/ref Pa) So the question is the bytes i am getting from audiorecorder from the buffer what is it is it…

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• Audio output from Silverlight

  - by leecarter

  I'm looking to develop a Silverlight application which will take a stream of data (not an audio stream as such) from a web server. The data stream would then be manipulated to give audio of a certain format (G.711 a-Law for example) which would then be converted into PCM so that additional effects can be applied (such as boosting the…

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• check_mk IPMI PCM sensor reading randomly fails

  - by Julian Kessel

  I use check_mk_agent for monitoring a server with IPMI and the freeipmi-tools installed. As far as I can see, the monitoring randomly detects no value returned by the IPMI Sensor "Temperature_PCH_Temp". That's a problem since it results in a CRITICAL state triggering a notification. The interruption lasts only over one check, the…

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• merge CAF (core audio format,Linear PCM) file into a video(mjpeg) file using ffmpeg (programaticall

  - by Sridhar

  Hello, As the title said, I have a CAF file and I want to insert that file into a video file using ffmpeg(Programmatically ) using C. CAF file has Linear PCM audio format I am successfully able to build the video file and now want to add the audio to the video file from CAF (Core Audio Format) file. Can anyone provide a sample…

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• android playback suddenly stopping...

  - by user306517

  I have an app that is streaming audio content and sometimes it just stops all of the suddent. the logcat windows shows -- AudioHardware pcm playback is going to standby and that's it. I saw on another thread (pun intended) that someone was saying it was because he was using too many threads. Could that really be causing this?…

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• Getting level values from PCM raw data using Core Audio

  - by John

  I am trying to extract level data from a PCM audio file using core audio. I have gotten as far as (I believe) getting the raw data into a byte array (UInt8) but it is 16 bit PCM data and I am having trouble reading the data out. The input is from the iPhone microphone, which I have set as: [recordSetting setValue:[NSNumber…

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• Steaming a non-PCM WAV file to a SilverLight application

  - by Satumba

  Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but encoded. …

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• Making a DVD video with a still image and PCM 16bit audio with ffmpeg

  - by João

  I'm trying to make a small video with a still image and a sound file playing in the background to pass it to dvdauthor and create a DVD. The command I'm using is this: ffmpeg -loop_input -i image.jpg -qscale 2 -i song.flac -aspect 4:3 -target pal-dvd -acodec pcm_s16le -shortest output.mpg However, the resulting video…

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• Streaming a non-PCM WAV file to a SilverLight application

  - by Satumba

  Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but…

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• Resampling audio output for A2DP (from PCM WAV)

  - by user1669982

  The question is how to bring stereo PCM WAV 32,000 Hz with a stream of 1024 kbps (125 KB) to the headset with Bluetooth 2.1 on a CM7 smartphone with DSPManager. Is it possible? SBC is really bad idea. To TJD: Because it compresses the compressed stream. My Epic 4G don`t have Apt-X support. My headset Gemix…

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• Another guvcview issue? Core dump!

  - by user290498

  guvcview is core dumping with my Sony Handycam plugged in. It works fine with my standard Logitech Webcam. I deleted the config file so it could re-create it. here is the output: $ guvcview guvcview 1.5.3 Could not open /home/rayj/.guvcviewrc for read, will try to create it write…

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• Static background noise while using new headset Ubuntu 13.04

  - by ThundLayr

  Today I bought a new gaming headset (Gx-Gaming Lychas), and when I tried to record some gameplay-comentary I noticed that there always is a static background noise, I just recorded an example so you guys can listen it (no downloaded needed): …

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• Using Audio Queue Services to play PCM data over a socket connection

  - by Rohan

  I'm writing a remote desktop client for the iPhone and I'm trying to implement audio redirection. The client is connected to the server over a socket connection, and the server sends 32K chunks of PCM data at a time. I'm trying to use AQS…

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• AS3 microphone recording/saving works, in-flash PCM playback double speed

  - by Lowgain

  I have a working mic recording script in AS3 which I have been able to successfully use to save .wav files to a server through AMF. These files playback fine in any audio player with no weird effects. For reference, here is what I am doing…

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• Music - How do you analyse the fundamental frequency of a PCM or WAC sample

  - by WaveyDavey

  Sample held in a buffer from DirectX. It's a sample of a note played and captured from an instrument. How do I analyse the frequency of the sample (like a guitar tuner does). I believe FFT's are involved, but I have no pointers to HOWTO's.

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• Downsampling and applying a lowpass filter to digital audio

  - by twk

  I've got a 44Khz audio stream from a CD, represented as an array of 16 bit PCM samples. I'd like to cut it down to an 11KHz stream. How do I do that? From my days of engineering class many years ago, I know that the stream won't be able…

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• AudioConverterConvertBuffer problem with insz error

  - by Samuel

  Hi Codegurus, I have a problem with the this function AudioConverterConvertBuffer. Basically I want to convert from this format _ streamFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked |0 ; …

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• Where to get pure C++ Lame MP3 encoder - PCM to MP3 example?

  - by Ole Jak

  So all I need is a simple function that sets it up (eating incoming PCM RATE (for example: rate near to 44100) It's channels (for example: 2) and -bits (for example: 16) and desirable 128 kb\s rate) and another one that takes PCM data…

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• Integrated webcam in lenovo t410 not working with 12.04

  - by kristianp

  I have a Lenovo T410 with an inbuilt webcam and I haven't been able to get the webcam working. I tried skype, cheese, both just give me a black window. The microphone works fine with skype, by the way. Can anyone provide any clues…

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• JNI - GetObjectField returns NULL

  - by Daniel

  I'm currently working on Mangler's Android implementation. I have a java class that looks like so: public class VentriloEventData { public short type; public class _pcm { public int length; public short send_type; …

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• Limit PulseAudio volume to prevent overdrive

  - by el.pescado

  Is it possible to limit maximum volume in PulseAudio? Currently, PulseAudio sets PCM channel too loud which results in distorted sound. I use aumix to turn volume down, but whenever any other sound is played (IM notification etc),…

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• hdmi AC-3 audio broke after upgrading from 11.10 to 12.04.3

  - by Jim LastName

  I just updated my MythBuntu 11.10 to 12.04.3. Now, when I try to play 5.1 content (ripped DVD), my TV (and receiver) plays a "chattering" sound. I check my receiver and the digital dolby light isn't on--it's in PCM mode. So,…

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• Opening Skype, Opera, OpenOffice logs me off

  - by anjanesh

  Whats common among Skype, Opera, OpenOffice in Ubuntu ? Whenever I open these applications I get logged off and shows back me the login screen. This started happening since the 10.10 upgrade. Forgot to mention : Yes, its…

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