Python: midi to audio stream

I need convert/synthesize MIDI data to audio stream PCM data. What would be an easy way to do so?

Live Audio Streaming From Android

Any idea how do I implement live audio streaming from Android 2.x 7 Android 4.x devices to a backend. Can I use an app like the VLC player to be the backend? How do I establish a connection from...

PHP script to extract artist & title from Shoutcast/Icecast stream

I found a script which can extract the artist & title name from an Icecast or Shoutcast stream. I want the script to update automatically when a song changed, at the moment its working only when i...

How to (automatically) test if WebRTC MediaStream is working?

Background: I'm developing a system, part of which is a WebRTC video (or audio) calling. The solution includes quite a bit business logic built on top of what the getUserMedia and...

Ffmpeg to duplicate an audio stream and encode this new stream

I have some video files that I need to re-encode due to compatibility issues. They are currently mkv files with h.264 video and ac3-a52 audio. I want to keep the h.264 video, convert the container...

Video Streaming Over Websockets

I am trying to build mobile app which can stream video from both sides(i.e something like video calling). I looked into webrtc, but thats not yet ready for mobile native apps as such and anyways...

Setup Mount Point in icecast server

I am developing an app which requires to stream live audio from iOS device to an icecast server and simultaneously play that audio in other iOS devices who are listening to that recorded audio...

Low-latency Opus over HTTP/TCP?

Trying to find a suitable technique/container for streaming live low-latency Opus over HTTP/TCP? The Ogg container is of course the obvious choice. However, for low-bitrate Opus (<50 bytes/frame)...

Streaming microphone through sockets using socket IO and Node JS

I am making an application where I want the user to use their mic (on their phone) and be able to talk to each other in the game lobby. However, this has proven to be more than difficult. I am...

Android - Play (mp3) from memory while streaming

Sorry about the weird title, I couldn't think of anything better. In my Android App I want to stream an .mp3 file from an http server, which requires basic authentication. The task is to download...

Is it possible to check if the user has a camera and microphone and if the permissions have been granted with Javascript?

I would like to find out if the user's device has an attached camera and microphone, and if so, has permissions been granted to get the audio and video stream using Javascript. I want to make this...

HTTP POST using XHR with Chunked Transfer Encoding

I have a REST API that accepts an Audio file via an HTTP Post. The API has support for Transfer-Encoding: chunked request header so that the file can be uploaded in pieces as it is being created...

Prevent getUserMedia audio feedback on Chrome

When a video and audio stream from a webcam is acquired by getUserMedia and assigned to a <video> element, I can see and hear myself. The audio track however turns into a feedback noise. The...

How to concatenate multiple MP4 videos with FFMPEG without audio sync issues?

I have been trying to concatenate a number of MP4 clips (h264,aac) using the FFMPEG concat protocol documented here. The clips concatenate successfully, however there are multiple errors in the...

Camera2 video recording without preview on Android: mp4 output file not fully playable

I am trying to record video from the back camera (the one that faces the face) on my Samsung Galaxy S6 (which supports 1920x1080 at about 30 fps). I do not want to have to use any surface for...

FFmpeg not copying all audio streams

I'm having trouble getting ffmpeg to copy all audio streams from a .mp4 file. After hours of searching online, it appears this should copy all streams (as shown in example 4 here): ffmpeg -i...

Can the Telegram bot API play sound from an online audio streaming URL?

Telegram BOT API has functions to send audio files and documents ,But can it play from an online sound streaming URL?

How to convert aac to ogg opus keeping bit rate and sample rate unchanged

I'm trying to convert a .aac file to .opus but after inspecting with ffprobe I get different bit and sample rates. While input file's audio stream bit rate is 245995, the output file's audio...

How to livestream a webcam to YouTube with FFmpeg?

I want to send the livestream of my webcam to YouTube. I can follow YouTube's guide up to step 8. "Stream Connection" tells me there is "No data" and the button "Go Live" remains unclickable. A...

Precise method of segmenting & transcoding video+audio (via ffmpeg), into an on-demand HLS stream?

recently I've been messing around with FFMPEG and streams through Nodejs. My ultimate goal is to serve a transcoded video stream - from any input filetype - via HTTP, generated in real-time as...

How to send audio data on rtsp backchannel?

I am working with an IP camera that supports Audio output(Audio Back-channel). What I want to do is The live stream my PC microphone audio data over provided RTSP URL so that what ever said at PC...

Download youtube video/audio stream with javascript

So I have a youtube video/audio stream URL, for example...

Add coverart into ogg containing an opus audio stream with ffmpeg without re-encoding the audio stream

I'm trying to add a coverart into an ogg file with ffmpeg : Here are my source.ogg and source.jpg files : $ ffprobe -hide_banner source.ogg Input #0, ogg, from 'source.ogg': Duration:...

My Flutter App got reject from Apple Review stating this 5.2 Intellectual Property (5.2.3)

My App got reject from Apple Review stating this (AUG/2020) I'm using the *youtube data api v3* to get the popular videos by country and display as a list in the app (App built using Flutter & ...

No audio with peerjs (no errors)?

I'm trying to add audio chat to a game using WebRTC via PeerJS. I am successfully generating a unique ID for both peers, then passing these through a socket.io server and establishing a call. Once...

Recording of metal view is slow due to texture.getbytes function - Swift

I am using this post for recording a custom metal view, but I am experiencing some issues. When I start recording I go from 60fps to ~20fps on a iPhone 12 Pro Max. After Profiling, the function...

react-native-video mutes the microphone

When a video is played during a webRTC call it causes the local stream to go mute without muting the track (audio track still has the enabled prop set to true). It does not happen when the 'muted'...

Unable to set remote SDP offer for H264 encoded video on Huawei devices

I'm developing a WebRTC video call app (one-way video and two-way audio) for Android with prebuilt package org.webrtc:google-webrtc:1.0.32006. I'm stuck with an error from this lib that...

How to process audio bytes to extract MFCCs from a live audio stream?

I want to stream live audio from an inbuilt microphone and have been successful doing so using PyAudio and Sounddevice. Both the approaches are fine, but the main issue is about feature...

WAV audio file stored in AWS S3 does not stream in iOS devices

My application stores .wav audio files in AWS S3. Links to these audio files are shared to the users and these audio files failed to play in iOS devices. I have tested this across multiple...