HPR3496: How I record HPR Episodes

Hacker Public Radio

https://gitlab.com/norrist/solocast

Sample script.txt

This is a sample script for solocast. Separate the segments with a blank line Bulleted lists are OK, but keep the items together by not skipping a line - Item 1 - Item 2 ### Markdown Formatting is OK But the Formatting gets lost in the script so you can write show notes in loosely formatted markdown Don't have more than 1 blank line separating segments 

solocast.py

#! /usr/bin/env python3 import click import os from shutil import which script_file = "script.txt" recording_directory_name = "Recordings" recording_format = "wav" script_segments = {} def test_sox_exists(): try: assert which("sox") except AssertionError: print("Cant find sox. Install sox somewhere in your path.") exit(1) def get_recording_file_name(slug): return f"{recording_directory_name}/{slug}.{recording_format}" def project_prep(): if not os.path.exists(recording_directory_name): os.makedirs(recording_directory_name) if not os.path.exists(f"{recording_directory_name}/Archive"): os.makedirs(f"{recording_directory_name}/Archive") def wait_for_input(): click.echo("*" * 40) _ = input("Press ENTER to Continue") def add_slug_text(slug, text): script_segments[slug] = text def recording_exists(slug): if os.path.isfile(get_recording_file_name(slug)): return True return False def noise_profile_missing(): if os.path.isfile(f"{recording_directory_name}/noise.prof"): return False return True def truncate_audio(slug): recording = get_recording_file_name(slug) new_recording = f"{recording_directory_name}/{slug}-truncated.{recording_format}" click.echo(f"truncating {recording}") SOX_CMD = ( f"sox -V2 {recording} {new_recording} silence -l 1 0.1 .1% -1 1.0 .1% stat" ) click.echo(SOX_CMD) os.system(SOX_CMD) os.system( f" mv -v {recording} {recording_directory_name}/Archive/{slug}.{recording_format}" ) os.rename(new_recording, recording) review_audio(slug) def play_audio(slug): recording = get_recording_file_name(slug) click.echo(f"Playing {recording}") os.system(f"play {recording}") review_audio(slug) def delete_audio(slug): recording = get_recording_file_name(slug) os.remove(recording) def review_audio(slug): review_menu = ["(p)lay", "(a)ccept", "(r)eccord again", "(t)runcate"] click.echo(slug) for i in review_menu: click.echo(i) menu_action = input(">> ") if menu_action == "p": play_audio(slug) elif menu_action == "a": exit() elif menu_action == "r": delete_audio(slug) find_and_record_next() elif menu_action == "t": truncate_audio(slug) else: review_audio(slug) def record_audio(slug): new_recording = get_recording_file_name(slug) click.echo(f"Creating {new_recording}") click.echo("press Enter to start then CRTL-C to quit") wait_for_input() os.system(f"rec {new_recording}") def record_silent_audio(): silent_recording = f"{recording_directory_name}/silence.{recording_format}" click.echo("RECORD 5 SECONDS OF SILENCE \n" * 5) click.echo("press Enter to start") wait_for_input() os.system(f"rec {silent_recording} trim 0 5") os.system( f"sox {silent_recording} -n noiseprof {recording_directory_name}/noise.prof" ) def load_script(): linetext = "" with open(script_file) as script_file_reader: for line in script_file_reader.readlines(): if not line.strip(): slug = linetext[:40].title() segment_name = "".join(filter(str.isalnum, slug)) add_slug_text(segment_name, linetext) linetext = "" else: linetext += f"{line} \n" def combine_recordings_for_export(): recording_list = [] combined_recording = f"{recording_directory_name}/combined.{recording_format}" for slug, text in script_segments.items(): recording = get_recording_file_name(slug) recording_list.append(recording) recording_list_string = " ".join(recording_list) print(recording_list_string) SOX_CMD = f"sox -V3 {recording_list_string} {combined_recording} noisered {recording_directory_name}/noise.prof 0.21 norm -10" click.echo(SOX_CMD) os.system(SOX_CMD) def find_and_record_next(): for slug, text in script_segments.items(): if recording_exists(slug): continue click.clear() click.echo(slug) click.echo("*" * 40) click.echo(text) click.echo("*" * 40) record_audio(slug) review_audio(slug) @click.group() def cli(): test_sox_exists() pass @cli.command() def combine(): "Combine Segments into single audio file" combine_recordings_for_export() @cli.command() def record(): "Record next unrecorded segment" if noise_profile_missing(): record_silent_audio() find_and_record_next() @cli.command() def silence(): "Generate noise profile" record_silent_audio() @cli.command() def review(): "Print segments" for slug, text in script_segments.items(): click.clear() click.echo(slug) click.echo("*" * 40) click.echo() click.echo(text) wait_for_input() if __name__ == "__main__": project_prep() load_script() cli()