def batch_process(tests, stem, freq):
    results = []
    for t in tests:
        tag = t[1]
        sr = __collector__['samp_rate']
        df = bal.read_data_files((stem + tag), freq, sr)
        results.append(bal.process_data(df, freq, sr))
    return results
def batch_process(tests, stem, freq):
    results = []
    for t in tests:
        tag = t[1]
        sr = __collector__['samp_rate']
        df = bal.read_data_files((stem + tag), freq, sr)
        results.append(bal.process_data(df, freq, sr))
    return results