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29 lines
884 B
Bash
29 lines
884 B
Bash
5 years ago
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#!/bin/sh
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# Prepares a sample.h file
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# sed not used, should just werk (TM) everywhere
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# Usage: ./samplify.sh my_sample.wav
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# Or you can install samplify.sh in your ~/bin and call it
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# from anywhere you like
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# Convert original soundfile and create sample.h
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# A temp file is needed otherwise xxd is unable to generate
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# sample length information?
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# Need to fix that later...
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sox "${1}" -t u8 -c 1 -r 8000 /tmp/sample.wav
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xxd -i /tmp/sample.wav > sample.h
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rm /tmp/sample.wav
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# Extract sample length
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SAMPLE_LEN=$(tail -1 sample.h | cut -d ' ' -f 5 | tr -d ';')
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# Inject SAMPLE_LEN in new file header
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NEW_HEADER="#define SAMPLE_RATE 8000
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const int sound_length=${SAMPLE_LEN};
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const unsigned char sound_data[] PROGMEM= {"
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# Remove first line of sample.h
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echo "$(tail -n +2 sample.h)" > sample.h
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# Prepend new header to sample.h
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echo "$(echo "${NEW_HEADER}"; cat sample.h)" > sample.h
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