/**
 * Adds the header bytes and start bits necessary for writing high-speed cassettes. The input bytes
 * must not have the start bits already inserted.
 */
export declare function wrapHighSpeed(bytes: Uint8Array): Uint8Array;
/**
 * High-speed CAS files have start bits built-in. Strip these out because
 * we re-insert them below when encoding. We could also remove the
 * writing of start bits below, but we don't really know how many bits
 * there are at the end that we shouldn't write.
 *
 * Update: We no longer insert start bits in encodeHighSpeed(), so this
 * routine is no longer necessary, but we keep it around anyway.
 */
export declare function stripStartBits(inBytes: Uint8Array): Uint8Array;
/**
 * Encode the sequence of bytes as an array of audio samples for high-speed (1500 baud) cassettes.
 * @param bytes cas-style array of bytes, including 256 0x55 bytes, sync byte, and start bits.
 * @param sampleRate number of samples per second in the generated audio.
 */
export declare function encodeHighSpeed(bytes: Uint8Array, sampleRate: number): Int16Array;
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