New answers tagged audio
7
votes
Accepted
Is adding a mean point between every two points a valid way of upsampling?
That is called linear interpolation.
Technically it is a valid method and just one methond among several methods.
It might not be a very good way as it is very simple and will not have very good ...
- 1,856
4
votes
AES encryption of an audio file
Processing any file with an algorithm that is reversible does not change the file in any way. This includes AES encryption and decryption, compressing and decompressing with a generic algorithm like ...
- 1,856
1
vote
Comparing realtime guitar sound input to a .wav file
Pitch and peak frequency are two different things. Peak frequency is a terrible measure of pitch for many acoustic guitar sounds or notes.
If the two guitar audio inputs (real and synthesized) are ...
- 34.5k
2
votes
Comparing realtime guitar sound input to a .wav file
but sometimes there is a difference in the peak frequency between the guitar input and the computer generated audio
That's expected. The peak frequency often doesn't map to the actual fundamental ...
- 37.8k
1
vote
What causes the mismatch between a calculated sine wave and a measured sine wave?
Given the offset is exactly 256+/-1 and not occurring on every value suggests the 8th bit in from the LSB is stuck, always 0 or always 1 on one of the waveforms so that the resulting error is 256. ...
- 43.4k
2
votes
Accepted
What are the step by step actions taken in order to convert PDM data to PCM data?
Here is good intro into the topic. https://www.youtube.com/watch?v=5lH-tQw0tlU
The exact details will depend on the specific microphone, processor and application requirements. Many processors these ...
- 37.8k
1
vote
How do I combine the raw data of two WAVE files?
Actually, this question is quite deep than it seems at the first glance as it includes both analog and digital signal processing point of view.
In nature, because of the presence of the superposition ...
- 563
5
votes
What causes the mismatch between a calculated sine wave and a measured sine wave?
Sorry, can't reproduce. I did the same thing with the dither turned off and found a perfect match between the generated sine wave and the calculated values. Even with a dither turned on things were ...
- 37.8k
0
votes
Examples of audio files that are challenging to cross-fade
Crossfades definitely have a "sweet spot" in terms of cross fade length. Too short, it sounds more like artifact and too long: you listen to both songs at the same time which is often weird ...
- 37.8k
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