🖥️sox

➡️This is a command-line reference manual for commands and command combinations that you don’t use often enough to remember it. This cheatsheet explains the sox command with important options and switches using examples.

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▁ ▂ ▃ ▄ ꧁ 🔴☠ COMMANDLINE-KUNGFU WITH CHEATSHEETS ☠🔴꧂▅ ▃ ▂ ▁

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# sox
# Sound eXchange: play, record and convert audio files.
# Audio formats are identified by the extension.

# Merge two audio files into one:
sox -m ${input_audiofile1} ${input_audiofile2} ${output_audiofile}

# Trim an audio file to the specified times:
sox ${input_audiofile} ${output_audiofile} trim ${start} ${end}

# Normalize an audio file (adjust volume to the maximum peak level, without clipping):
sox --norm ${input_audiofile} ${output_audiofile}

# Reverse and save an audio file:
sox ${input_audiofile} ${output_audiofile} reverse

# Print statistical data of an audio file:
sox ${input_audiofile} -n stat

# Increase the volume of an audio file by 2x:
sox -v 2.0 ${input_audiofile} ${output_audiofile}

# Changing sample rate of a file
sox ${input_file} -r 16000 ${output_file}

# Changing the Number of Channels
# For example: convert mono audio files to stereo
sox ${mono_wav} -c 2 ${stereo_wav}

# Generate Different Types of Sounds
# ${len} - length of audio to synthesize, hh:mm:ss.frac
# ${freq} - frequencies at the beginning/end of synthesis in Hz
# ${type} is one of sine, square, triangle, sawtooth, trapezium, exp, 
#   [white]noise, pinknoise, brown-noise
# sox -n synth ${len} ${type} ${freq}
sox -r 8000 -n output.wav synth 3 sine 300-3300

# Speed up the Sound in an Audio File
sox input.wav output.wav speed 2.0

# Record audio from microphone or sound input from the console
sox -t ossdsp -w -s -r 44100 -c 2 /dev/dsp -t raw - | lame -x -m s - File.mp3
    # Explanation: sox is a software that lets you connect directly to the sound card and send what passes for it in raw format and the system memory through the concatenation of the linux command we can make real-time audio processing is generated by licks and be converted to mp3.
    # Limitations: Requires a plugin for alsa oss to run on modern distributions.

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