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Questions tagged [mixing]

245 questions
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Calling Objective-C parent from C++ object

Creating Audio Unit Extensions on iOS requires mixing of C++ and Objective-C classes. As a result I now have an Objective-C object with a C++ object as one of its variables. I would like the C++ child object to be able to notify its Objective-C…
Bram Bos
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Mixing static and dynamic (shared) libraries?

I am working with three different libraries, a Core (can be compiled as static or DLL), Graphics (can be compiled as static or DLL - Dealing with Ogre), Physics (can be compiled as static only due to licensing - Havok). A project then uses a…
Samaursa
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"Amix" and "adelay" combined leads to "Error while filtering: Cannot allocate memory"

I was trying to add to audio clips together (using amix) while delaying one of them (with adelay). I used the following command ffmpeg -i org/onclassical_demo_luisi_chopin_scherzo_2_31_small-version_ii-ending.wav \ -i org/all_u_had_2_say.wav…
Harald Nordgren
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Merging two MP3 audio files

I am trying to use ffmpeg library for mixing two MP3 or wav audio files using the commands available that I searched over Internet like given below: ffmpeg -i input1.mp3 -i input2.mp3 -filter_complex amerge -c:a libmp3lame -q:a 4 output.mp3 From…
Ashok Singhal
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Offline sound recording in iphone

I am developing a music mixing app in iphone. It'll mix the music and user can compose a new music from it. I need to record this final music. I had used AVAudiorecorder to record this one. But no change. It can record sound from microphone but I…
Midhere
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Mixing columns in matlab

I have a 2x100 matrix. It contains 100 elements from 2 different classes. So each element consists of the value itself and the label with the class it belongs to(1 or 2). I want to mix this data into another 2x100 matrix, where the values stay still…
user1367988
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Mix RGB colors (L*a*b*)

Basically I want two mix two colours color1 and color2. Since simple calculation's bring up stuff like blue+yellow = grey ((color1.r + color2.r)/2 etc) i did some research and found that apparently mixing colors in order for the mixed color to look…
Samuel
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Multiply signal with carrier frequency in matlab

I have an input complex signal at frequency of 250.01MHz. i have to mix this signal with a frequency at 250MHz. I understand that by mixing(multiplying) it will produce the sum and difference of the 2 frequencies. And i will use a low pass filter to…
user982209
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Android, decode mp3, mix few audio and encode to pcm ( output are too fast)

I have question about Android decode mp3, mix few audio and encode to m4a (aac). For that I use Jlayer for android to decode mp3, audiotrack to play song, and MediaCodec with mediaformat to encode pcm. The problem is my output after encode is too…
Rengare
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rgba color mixing css

Trying to make a function that takes two RGBa values and results in a third. The first value will be of opacity: 1 eg: color: rbga((0,0,0,1);and the second will be any opacity (set by the user). The goal then is to mix the two colors, as if you had…
user1288838
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Delphi: Mixing two audio streams

I am trying to add support for conference chat in an already up and running single mic chat application (in which only one person can talk at a time). The streaming for both clients and everything is done and the voice is recording and playing well…
Junaid Noor
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Mix the colours of two particle systems

I'm trying to create two particle systems that are of different colours but when they interact their colours mix. Does anyone have any good ideas of how to go about this? I'm looking to do something similar to this -> vimeo(DOT)com/8693610
user3633749
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How to mix a recorded voice with prerecorded music in android?

It's working for two prerecorded wav files of same characteristics(sample rate,channel,bitspersample etc) but with a recorded voice it creates white noises in output. How can we reduce white noise from mixed sound? Is there any native…
rvp
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Color mixing results depend on Z order of elements?

Well, normally, if I mix 2 colors, mathematically my expectation is: `(color1+color2)/2. So green/2+red/2=yellow (255,0,0)/2+(0,255,0)/2=(127,127,0)`. I prepared test in WPF. And I got result which I hardly can explain. So what do you think?…
LOCKI
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Java Canvas Won't Paint

I want my program to display the canvas that is repainted once at the start and then whenever a change is made afterwards. I thought I had everything coded correctly, but for some reason nothing that is painted onto the canvas actually shows (I know…
StrongJoshua
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