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What is max achievabe sampling rate of MCP3008/MCP3001 ...
https://forums.raspberrypi.com/viewtopic.php?t=83877#:~:text=bienle%20wrote%3A%20tIn%20the%20datasheet%20of%20MCP3001%2C%20it,bienle%20wrote%3A%20While%20RPi%20has%20700Mhz%20clock%20frequency.
audio - Change usb soundcard device sample rate ...
https://raspberrypi.stackexchange.com/questions/64531/change-usb-soundcard-device-sample-rate
This shows device default sample rate as 48000 and no of channels = 1 I am using pyaudio to record the sound self.stream = self.audio.open( format=self.FORMAT, channels=self.CHANNELS, rate=AUDIO_SAMPLING_RATE, input=True, frames_per_buffer=AUDIO_BUFFER_SIZE, input_device_index=self.device_index )
USB Audio Input Sample Rate & Other Questions - Raspberry ...
https://forums.raspberrypi.com/viewtopic.php?t=30486
I'm making some progress using a cheap USB sound card with the Pi, but there are two things I have questions about. First, is it possible to record audio at a lower sample rate using PyAudio? Right now I seem to have to set the sample rate to 48 kHz in order to get it to work.
Recording Audio on the Raspberry Pi with Python and a USB ...
https://makersportal.com/blog/2018/8/23/recording-audio-on-the-raspberry-pi-with-python-and-a-usb-microphone
The RPi can sample at 48kHz at a bit depth of 16-bits, which allows the user to record and playback fairly good quality audio. For this tutorial, I will demonstrate the process of enabling a USB audio device and using it to record and analyze acoustic signals using Python 3.x.
Setting bits and sample rate of a USB audiocard ...
https://forums.raspberrypi.com/viewtopic.php?t=187793
pacat -r --rate=44100 --format=s16le --device= ... etc, etc. But, that's inconvenient. Through Alsa plugins and associated virtual devices, the specified parameters can be applied to all devices, or to specific devices. There is a hw plugin and a plug plugin, and a few others. The plug plugin description:
Sample rate to Bit rate | Raspberry Pi Audio
https://rpiaudio.wordpress.com/2012/02/22/sample-rate-to-bit-rate/
Starting with a 96 kHz by 16-bit channel we have a bit rate of 1.536 Mbps per channel. Therefore, an 8 channel recorder needs a total communications bit rate of 12.288 Mbps, and if you add for return channels for monitors/headphones this increases to 18.432 Mbps.
Using a Raspberry Pi as equaliser in between an USB …
https://www.audiosciencereview.com/forum/index.php?threads/using-a-raspberry-pi-as-equaliser-in-between-an-usb-source-ipad-and-usb-dac.25414/
#load the USB audio gadget module with the following options options g_audio c_srate=48000 c_ssize=4 Reboot. After reboot the Pi functions as an USB audio gadget that accepts audio with a sample rate of 48kHz (change c_srate if you would like another sample rate), and a sample size of 32 bits ( c_ssize=4 means 4 bytes, equals 32 bits).
USB Audio setting sample rate broken · Issue #197 ...
https://github.com/raspberrypi/firmware/issues/197
However, the audio is actually only being sampled at 32kHz (verified by looking at a recorded wav file created using filesink) - therefore further processing of the audio is causing it to be pitched up and distorted with frequent gapping, …
Raspberry Pi and realtime, low-latency audio [Linux-Sound]
https://wiki.linuxaudio.org/wiki/raspberrypi
The Raspberry Pi can be set up to handle realtime, low-latency audio but it requires quite some tweaking. ... To work around having only audio out an external USB audio interface can be an option as a lot of USB audio interfaces have both audio inputs and outputs that can be used simultaneously. ... the default is 2), use a sample rate of 44 ...
Using 8khz sample rate in python on raspberry pi3 - Stack ...
https://stackoverflow.com/questions/42693341/using-8khz-sample-rate-in-python-on-raspberry-pi3
import pyaudio import wave FORMAT = pyaudio.paInt16 CHANNELS = 1 RATE = 8000 CHUNK = 4000 RECORD_SECONDS = 5 WAVE_OUTPUT_FILENAME = "test1.wav" audio = pyaudio.PyAudio() print audio.get_default_input_device_info() # start Recording stream = audio.open(format=FORMAT, channels=CHANNELS,rate=RATE, …
Sound on Raspberry Pi: Separate speaker and ... - jonamiki.com
https://jonamiki.com/2019/07/04/sound-on-raspberry-pi-separate-speaker-and-microphone/
We only have one device and that’s the USB microphone listed as Card 1 and Device 0 (“hw:1,0”). Configuring the audio settings To set the audio settings, create or modify the .asoundrc file in the users home directory as follows. That would be …
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