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Questions tagged [sample-rate]

157 questions
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Change Audio Pitch with Audio Speed Ffmpeg

i'm using Ffmpeg to change Audio Pitch and Speed and here's some command i'm trying: ffmpeg -i audioPath -filter:a atempo=audioSpeed,asetrate=audioPitch -ar sampleRate -b:a xValue(k) output.mp3 ffmpeg -i audioPath -filter:a atempo=(audioSpeed /…
Vivek Thummar
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Incorrect signal returned by librosa.clicks

I'm trying to write a simple metronome with librosa.clicks import librosa import numpy as np bpm = 200 exercise_duration = 10 sr = 22050 seconds_per_beat = 60/bpm beats_number = round(bpm/ (60/exercise_duration)) metronome_clicks = [0] for i in…
user14864717
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Recorded voice notes slows the application

In my iPhone application, i am recording voice of user and saving it in device. My setting of AVAudioRecorder is as follows: NSMutableDictionary* recordSetting = [[NSMutableDictionary alloc] init]; [recordSetting setValue :[NSNumber…
Yogi
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inconsistency sample time matlab simulink

I need to do some research, which requires multiplying the recorded sample of the wav signal by the harmonic sine and cosine function. At the initial launch, I could listen to the recorded VAV file, but the 1 kHz harmonic oscillation was angular, as…
Антон
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Flite TTS Sample Rate

Is it possible to change the sample rate of the audio output in flite tts? The default output is 16 kHz PCM and I'd like to change it to output 8 kHz.
brhoover
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Increase the sampling rate of Arduino Nano 33 BLE

I'm using a Arduino Nano 33 BLE. In my project I have to send the accelerometer and gyroscope data via bluetooth to an android application. My sample rate is 10Hz but I should have 50Hz. How can I change Arduino Nano's sample rate? thank you
Mara
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Adding silent pause between byte array of two audio

I have multiple audio files converted into byte array for each, and i have start time and end time of each audio file (these audio files are converted from video so i have its time stamps). Now i want to merge these byte array of audio files to…
Darshan
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Sample rate of standard sin function in C

I want to create a sin wave for 1000 Hz, 8000 sample rate. When ı write below codes in C language on Dev C++ platform; #include #include double sampleRate=8000.00; double freq=1000.00; double sine,t,delta; int i=0; int main(){ …
KaruF
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How to calculate sample rate of any CSV data?

Sample rate calculation is done of .wav data easily using following this code. sampleRate, data = scipy.io.wavfile.read('ecg.wav') times = np.arange(len(data))/sampleRate If I want to calculate same sample rate of my .csv file what should I change…
Abc
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Why window_length/hop_length are multiplied with sample rate in librosa.core.stft in this example?

I'm new to voice recognition and I'm going through the details in this implementation of speaker verification. In data_preprocess.py authors use librosa library. Here is a simplified version of the code: def preprocess_data(data_dir, res_dir, N, M,…
mirzanahal
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Resampling data from 1280 Hz to 240 Hz in python

I have a python list of force data that was sampled at 1280 Hz, I have to get it do exactly 240 Hz in order to match it exactly with a video that was filmed at 240 Hz. I was thinking about downsampling to 160 Hz and then upsampling through…
Michael
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How to change the audio sample rate in Unity?

The default audio sample rate is 48000. Is it possible to change it to other values like 44100? I log the value of AudioSettings.outputSampleRate and it shows 48000. But it doesn't seem possible to change that value.
Thinium
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Change Sample rate with AudioConverter

I am trying to re-sample the input audio 44.1 kHz to 48 kHz. using AudioToolbox's AUAudioUnit.inputHandler writing out the input 44.1 kHZ to a wav file (this is working perfectly) converting the 44.1 kHz to 48 kHz and writing out this converted…
szuniverse
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BLE113 data reading in LabView - lower sampling frequency

my goal is to obtain the data from BLE113 and processed them in Labview. I managed it using the BLE toolkit and it works. However, the sampling frequency is lower than it should be (1000 S/s). The number of samples per second is around 940 instead…
Dan
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Upsampling with 64 hz in R

I have data in the below format. Sample data pasted here. It basically has 3 variables Start time, End time & set of values between these timestamps. The sampling rate is 64Hz Now I need output in the following format with difference between two…
Coolsun
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